[ { "key": "FTD9EWHM", "version": 14, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/FTD9EWHM", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/FTD9EWHM", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/AQA2GIMI", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "FTD9EWHM", "version": 14, "parentItem": "AQA2GIMI", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-21T15:06:11Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_4651017&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "60c1bf93f004866570a05a1db917b61c", "mtime": 1377097571000, "tags": [], "relations": {}, "dateAdded": "2013-08-21T15:06:11Z", "dateModified": "2013-08-21T15:06:11Z" } }, { "key": "AQA2GIMI", "version": 13, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/AQA2GIMI", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/AQA2GIMI", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "Paul Longrigg", "parsedDate": "1987-03-17", "numChildren": 1 }, "data": { "key": "AQA2GIMI", "version": 13, "itemType": "patent", "title": "Wind energy conversion system", "creators": [ { "creatorType": "inventor", "firstName": "Golden CO", "lastName": "Paul Longrigg" } ], "abstractNote": "The wind energy conversion system includes a wind machine having a propeller connected to a generator of electric power, the propeller rotating the generator in response to force of an incident wind. The generator converts the power of the wind to electric power for use by an electric load. Circuitry for varying the duty factor of the generator output power is connected between the generator and the load to thereby alter a loading of the generator and the propeller by the electric load. Wind speed is sensed electro-optically to provide data of wind speed upwind of the propeller, to thereby permit tip speed ratio circuitry to operate the power control circuitry and thereby optimize the tip speed ratio by varying the loading of the propeller. Accordingly, the efficiency of the wind energy conversion system is maximized.", "place": "US", "country": "", "assignee": "US 4228361 (Oct, 1980) Jacobs et al. 290/44; US 4331881 (May, 1982) Soderholm et al. 290/44; US 4464579 (Aug, 1984) Schwarz 290/44; US 4525633 (Jun, 1985) Wertheim et al. 290/44", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "F03D 702", "priorityNumbers": "", "issueDate": "March 17, 1987", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_4651017/en/", "accessDate": "2013-08-21T15:06:10Z", "shortTitle": "", "language": "", "rights": "", "extra": "290/44; 290/55; 3DI/G21", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-21T15:06:10Z", "dateModified": "2013-08-21T15:06:10Z" } }, { "key": "9RHNRVWZ", "version": 12, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/9RHNRVWZ", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/9RHNRVWZ", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/FH779FRP", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "9RHNRVWZ", "version": 12, "parentItem": "FH779FRP", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T22:00:09Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_6900998&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "1f6b06c5ac098dc3344ad3938a22920c", "mtime": 1377036009000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T22:00:09Z", "dateModified": "2013-08-20T22:00:09Z" } }, { "key": "FH779FRP", "version": 11, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/FH779FRP", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/FH779FRP", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "ERICKSON et al.", "parsedDate": "2005-05-31", "numChildren": 1 }, "data": { "key": "FH779FRP", "version": 11, "itemType": "patent", "title": "Variable-speed wind power system with improved energy capture via multilevel conversion", "creators": [ { "creatorType": "inventor", "firstName": "Robert W. [US]", "lastName": "ERICKSON" }, { "creatorType": "inventor", "firstName": "Osama A. [KW/KW]", "lastName": "AL-NASEEM" }, { "creatorType": "inventor", "firstName": "Lee Jay [US]", "lastName": "FINGERSH" } ], "abstractNote": "A system and method for efficiently capturing electrical energy from a variable-speed generator are disclosed. The system includes a matrix converter using full-bridge, multilevel switch cells, in which semiconductor devices are clamped to a known constant DC voltage of a capacitor. The multilevel matrix converter is capable of generating multilevel voltage wave waveform of arbitrary magnitude and frequencies. The matrix converter can be controlled by using space vector modulation.", "place": "US", "country": "", "assignee": "US 4642751 A (Feb, 1987) Schauder; US 4648022 A (Mar, 1987) Schauder; US 4994684 A (Feb, 1991) Lauw et al.; US 5798632 A (Aug, 1998) Muljadi; US 5949672 A (Sep, 1999) Bernet 363/159; US 5977569 A (Nov, 1999) Li 257/119; US 6137187 A (Oct, 2000) Mikhail et al.; US 6566764 B2 (May, 2003) Rebsdorf et al. 290/44; US 6603647 B2 (Aug, 2003) Briesen et al. 361/91.1; US 6711038 B2 (Mar, 2004) Ziegler et al. 363/123; US 6744650 B2 (Jun, 2004) Mahlein et al. 363/149", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "H02M005/22", "priorityNumbers": "", "issueDate": "May 31, 2005", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_6900998/en/", "accessDate": "2013-08-20T22:00:07Z", "shortTitle": "", "language": "", "rights": "", "extra": "290 44; 363159", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T22:00:07Z", "dateModified": "2013-08-20T22:00:07Z" } }, { "key": "9Q6W5J2Q", "version": 10, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/9Q6W5J2Q", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/9Q6W5J2Q", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/T4JREDMK", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "9Q6W5J2Q", "version": 10, "parentItem": "T4JREDMK", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:54:27Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_8174136&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "74edce3dae077f01288e567212dffc1a", "mtime": 1377035667000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:54:27Z", "dateModified": "2013-08-20T21:54:27Z" } }, { "key": "T4JREDMK", "version": 9, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/T4JREDMK", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/T4JREDMK", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "JOHNSON and FINGERSH", "parsedDate": "2012-05-08", "numChildren": 1 }, "data": { "key": "T4JREDMK", "version": 9, "itemType": "patent", "title": "Adaptive pitch control for variable speed wind turbines", "creators": [ { "creatorType": "inventor", "firstName": "Kathryn E. [US]", "lastName": "JOHNSON" }, { "creatorType": "inventor", "firstName": "Lee Jay [US]", "lastName": "FINGERSH" } ], "abstractNote": "An adaptive method for adjusting blade pitch angle, and controllers implementing such a method, for achieving higher power coefficients. Average power coefficients are determined for first and second periods of operation for the wind turbine. When the average power coefficient for the second time period is larger than for the first, a pitch increment, which may be generated based on the power coefficients, is added (or the sign is retained) to the nominal pitch angle value for the wind turbine. When the average power coefficient for the second time period is less than for the first, the pitch increment is subtracted (or the sign is changed). A control signal is generated based on the adapted pitch angle value and sent to blade pitch actuators that act to change the pitch angle of the wind turbine to the new or modified pitch angle setting, and this process is iteratively performed.", "place": "US", "country": "", "assignee": "US 2004/0119292 A1 (Jun, 2004) Datta et al.; US 2005/0012339 A1 (Jan, 2005) Mikhail et al.; US 2005/0019163 A1 (Jan, 2005) Heronemus; US 2005/0082839 A1 (Apr, 2005) McCoin; US 2010/0090464 A1 (Apr, 2010) Egedal 290/44; US 2010/0301606 A1 (Dec, 2010) Hashimoto et al. 290/44; US 2011/0158805 A1 (Jun, 2011) Miranda et al. 416/1; US 2011/0193343 A1 (Aug, 2011) Nakashima et al. 290/44; US 4160170 A (Jul, 1979) Harner et al.; US 4331881 A (May, 1982) Soderholm et al.; US 4656362 A (Apr, 1987) Harner et al.; US 5155375 A (Oct, 1992) Holley; US 5798631 A (Aug, 1998) Spee et al.; US 6137187 A (Oct, 2000) Mikhail et al.; US 6320272 B1 (Nov, 2001) Lading et al.; US 6320273 B1 (Nov, 2001) Nemec; US 6327957 B1 (Dec, 2001) Carter, Sr.; US 6856039 B2 (Feb, 2005) Mikhail et al.; US 6933625 B2 (Aug, 2005) Feddersen et al.", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "F03D 9/00; H02P 9/04", "priorityNumbers": "", "issueDate": "May 8, 2012", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_8174136/en/", "accessDate": "2013-08-20T21:54:26Z", "shortTitle": "", "language": "", "rights": "", "extra": "290 44", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:54:26Z", "dateModified": "2013-08-20T21:54:26Z" } }, { "key": "ES876KTN", "version": 10, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/ES876KTN", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/ES876KTN", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/MBCT4PXG", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "ES876KTN", "version": 10, "parentItem": "MBCT4PXG", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:53:11Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_5562420&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "2350aab523e0f07943e3c984b6d965d3", "mtime": 1377035590000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:53:11Z", "dateModified": "2013-08-20T21:53:11Z" } }, { "key": "MBCT4PXG", "version": 7, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/MBCT4PXG", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/MBCT4PXG", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "James L. Tangler and Dan M. Somers", "parsedDate": "1996-10-08", "numChildren": 1 }, "data": { "key": "MBCT4PXG", "version": 7, "itemType": "patent", "title": "Airfoils for wind turbine", "creators": [ { "creatorType": "inventor", "firstName": "Boulder CO", "lastName": "James L. Tangler" }, { "creatorType": "inventor", "firstName": "State College PA", "lastName": "Dan M. Somers" } ], "abstractNote": "Airfoils for the blade of a wind turbine wherein each airfoil is characterized by a thickness in a range from 16%-24% and a maximum lift coefficient designed to be largely insensitive to roughness effects. The airfoils include a family of airfoils for a blade 15 to 25 meters in length, a family of airfoils for a blade 1 to 5 meters in length, and a family of airfoils for a blade 5 to 10 meters in length.", "place": "US", "country": "", "assignee": "US 3173490 (Mar, 1965) Stuart, III 416/223 R; US 4408958 (Oct, 1983) Schale 416/237; US 4459083 (Jul, 1984) Bingham; US 4606519 (Aug, 1986) Fertis et al.; US 4619423 (Oct, 1986) Holmes et al.; US 4668169 (May, 1987) Perry 416/228; US 4732542 (Mar, 1988) Hahn et al.; US 4830315 (May, 1989) Presz, Jr. et al.; US 4830574 (May, 1989) Wainauski et al.; US 4844698 (Jul, 1989) Gornstein et al. 416/242; US 4927330 (May, 1990) Asboth 416/223 R; US 4941803 (Jul, 1990) Wainauski et al.; US 4976587 (Dec, 1990) Johnston et al. 416/230; US 5114099 (May, 1992) Gao; US 5161952 (Nov, 1992) Eggers, Jr. 416/223 R; US 5417548 (May, 1995) Tangler et al. 416/223 R; WO 8503110 (Jul, 1985)", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "B63H 126", "priorityNumbers": "", "issueDate": "October 8, 1996", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_5562420/en/", "accessDate": "2013-08-20T21:53:09Z", "shortTitle": "", "language": "", "rights": "", "extra": "162/23R; 16D/IG2; 16D/IG5", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:53:09Z", "dateModified": "2013-08-20T21:53:09Z" } }, { "key": "7W3SDPJT", "version": 7, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/7W3SDPJT", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/7W3SDPJT", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/GJGP28CB", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "7W3SDPJT", "version": 7, "parentItem": "GJGP28CB", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:52:40Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_6068446&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "d176c73171ef284f39b3c8e45e188e36", "mtime": 1377035560000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:52:40Z", "dateModified": "2013-08-20T21:52:40Z" } }, { "key": "GJGP28CB", "version": 6, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/GJGP28CB", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/GJGP28CB", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "James L. Tangler and Dan M. Somers", "parsedDate": "2000-05-30", "numChildren": 1 }, "data": { "key": "GJGP28CB", "version": 6, "itemType": "patent", "title": "Airfoils for wind turbine", "creators": [ { "creatorType": "inventor", "firstName": "Boulder CO", "lastName": "James L. Tangler" }, { "creatorType": "inventor", "firstName": "State College PA", "lastName": "Dan M. Somers" } ], "abstractNote": "Airfoils for the tip and mid-span regions of a wind turbine blade have upper surface and lower surface shapes and contours between a leading edge and a trailing edge that minimize roughness effects of the airfoil and provide maximum lift coefficients that are largely insensitive to roughness effects. The airfoil in one embodiment is shaped and contoured to have a thickness in a range of about fourteen to seventeen percent, a Reynolds number in a range of about 1,500,000 to 2,000,000, and a maximum lift coefficient in a range of about 1.4 to 1.5. In another embodiment, the airfoil is shaped and contoured to have a thickness in a range of about fourteen percent to sixteen percent, a Reynolds number in a range of about 1,500,000 to 3,000,000, and a maximum lift coefficient in a range of about 0.7 to 1.5. Another embodiment of the airfoil is shaped and contoured to have a Reynolds in a range of about 1,500,000 to 4,000,000, and a maximum lift coefficient in a range of about 1.0 to 1.5.", "place": "US", "country": "", "assignee": "US 3173490 (Mar, 1965) Stuart, III; US 4408958 (Oct, 1983) Schacle; US 4459083 (Jul, 1984) Bingham; US 4606519 (Aug, 1986) Fertis et al.; US 4619423 (Oct, 1986) Holmes et al.; US 4668169 (May, 1987) Perry; US 4732542 (Mar, 1988) Hahn et al.; US 4830315 (May, 1989) Presz, Jr. et al.; US 4830574 (May, 1989) Wainauski et al.; US 4844698 (Jul, 1989) Gornstein et al.; US 4927330 (May, 1990) Asboth; US 4941803 (Jul, 1990) Wainauski et al.; US 4976587 (Dec, 1990) Johnston et al.; US 5114099 (May, 1992) Gao; US 5161952 (Nov, 1992) Eggers, Jr.; US 5417548 (May, 1995) Tangler et al.; US 5562420 (Oct, 1996) Tangler et al.; WO 8503110 (Jul, 1985)", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "F03B 312", "priorityNumbers": "", "issueDate": "May 30, 2000", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_6068446/en/", "accessDate": "2013-08-20T21:52:39Z", "shortTitle": "", "language": "", "rights": "", "extra": "162/23R; 16D/IG2; 16D/IG5", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:52:39Z", "dateModified": "2013-08-20T21:52:39Z" } }, { "key": "HINU7PMA", "version": 7, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/HINU7PMA", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/HINU7PMA", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/DN6ZVIIQ", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "HINU7PMA", "version": 7, "parentItem": "DN6ZVIIQ", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:52:33Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_5417548&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "51924bf87c91872829fe9d95b439dc35", "mtime": 1377035553000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:52:33Z", "dateModified": "2013-08-20T21:52:33Z" } }, { "key": "DN6ZVIIQ", "version": 6, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/DN6ZVIIQ", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/DN6ZVIIQ", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "James L. Tangler and Dan M. Somers", "parsedDate": "1995-05-23", "numChildren": 1 }, "data": { "key": "DN6ZVIIQ", "version": 6, "itemType": "patent", "title": "Root region airfoil for wind turbine", "creators": [ { "creatorType": "inventor", "firstName": "Boulder CO", "lastName": "James L. Tangler" }, { "creatorType": "inventor", "firstName": "State College PA", "lastName": "Dan M. Somers" } ], "abstractNote": "A thick airfoil for the root region of the blade of a wind turbine. The airfoil has a thickness in a range from 24%-26% and a Reynolds number in a range from 1,000,000 to 1,800,000. The airfoil has a maximum lift coefficient of 1.4-1.6 that has minimum sensitivity to roughness effects.", "place": "US", "country": "", "assignee": "US 4240598 (Dec, 1980) Espin et al. 416/223 R; US 4412664 (Nov, 1983) Noonan 416/223 R; US 4416434 (Nov, 1983) Thibert et al. 416/223 R; US 4630787 (Dec, 1986) Middlebrook 416/223 R; US 4652213 (Mar, 1987) Thibert et al. 416/223 R; US 4668169 (May, 1987) Perry 416/223 R; US 5209643 (May, 1993) Cole 16D/IG..5", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "B63H 126", "priorityNumbers": "", "issueDate": "May 23, 1995", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_5417548/en/", "accessDate": "2013-08-20T21:52:32Z", "shortTitle": "", "language": "", "rights": "", "extra": "162/23R; 16D/IG2; 16D/IG5", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:52:32Z", "dateModified": "2013-08-20T21:52:32Z" } }, { "key": "4ZJJH7WW", "version": 7, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/4ZJJH7WW", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/4ZJJH7WW", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/9BUCKAXC", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "4ZJJH7WW", "version": 7, "parentItem": "9BUCKAXC", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:52:23Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_8197218&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "9ebdd66e82d1490df6edbf0eaa17a5d7", "mtime": 1377035543000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:52:23Z", "dateModified": "2013-08-20T21:52:23Z" } }, { "key": "9BUCKAXC", "version": 6, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/9BUCKAXC", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/9BUCKAXC", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "TANGLER and SOMERS", "parsedDate": "2012-06-12", "numChildren": 1 }, "data": { "key": "9BUCKAXC", "version": 6, "itemType": "patent", "title": "Quiet airfoils for small and large wind turbines", "creators": [ { "creatorType": "inventor", "firstName": "James L. [US]", "lastName": "TANGLER" }, { "creatorType": "inventor", "firstName": "Dan L. [US]", "lastName": "SOMERS" } ], "abstractNote": "Thick airfoil families with desirable aerodynamic performance with minimal airfoil induced noise. The airfoil families are suitable for a variety of wind turbine designs and are particularly well-suited for use with horizontal axis wind turbines (HAWTs) with constant or variable speed using pitch and/or stall control. In exemplary embodiments, a first family of three thick airfoils is provided for use with small wind turbines and second family of three thick airfoils is provided for use with very large machines, e.g., an airfoil defined for each of three blade radial stations or blade portions defined along the length of a blade. Each of the families is designed to provide a high maximum lift coefficient or high lift, to exhibit docile stalls, to be relatively insensitive to roughness, and to achieve a low profile drag.", "place": "US", "country": "", "assignee": "CA 2524208 A1 (Nov, 2004); CA 2554666 C (Jan, 2011); US 2007/0105321 A1 (May, 2007) Lee; US 4976587 A (Dec, 1990) Johnston et al. 416/230; US 5417548 A (May, 1995) Tangler et al.; US 5562420 A (Oct, 1996) Tangler et al.; US 6068446 A (May, 2000) Tangler et al.; US 6899524 B1 (May, 2005) Tangler et al.", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "F03D 1/06", "priorityNumbers": "", "issueDate": "June 12, 2012", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_8197218/en/", "accessDate": "2013-08-20T21:52:22Z", "shortTitle": "", "language": "", "rights": "", "extra": "416238; 416243; 416DIG 2", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:52:22Z", "dateModified": "2013-08-20T21:52:22Z" } }, { "key": "DM4WSH34", "version": 5, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/DM4WSH34", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/DM4WSH34", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/AIJKMF98", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "DM4WSH34", "version": 5, "parentItem": "AIJKMF98", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:50:41Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_7471010&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "cb8e82e5cb410adbb01c41fdb0ecca0b", "mtime": 1377035441000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:50:41Z", "dateModified": "2013-08-20T21:50:41Z" } }, { "key": "AIJKMF98", "version": 4, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/AIJKMF98", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/AIJKMF98", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "FINGERSH", "parsedDate": "2008-12-30", "numChildren": 1 }, "data": { "key": "AIJKMF98", "version": 4, "itemType": "patent", "title": "Wind turbine tower for storing hydrogen and energy", "creators": [ { "creatorType": "inventor", "firstName": "Lee Jay [US]", "lastName": "FINGERSH" } ], "abstractNote": "A wind turbine tower assembly for storing compressed gas such as hydrogen. The tower assembly includes a wind turbine having a rotor, a generator driven by the rotor, and a nacelle housing the generator. The tower assembly includes a foundation and a tubular tower with one end mounted to the foundation and another end attached to the nacelle. The tower includes an in-tower storage configured for storing a pressurized gas and defined at least in part by inner surfaces of the tower wall. In one embodiment, the tower wall is steel and has a circular cross section. The in-tower storage may be defined by first and second end caps welded to the inner surface of the tower wall or by an end cap near the top of the tower and by a sealing element attached to the tower wall adjacent the foundation, with the sealing element abutting the foundation.", "place": "US", "country": "", "assignee": "NO 2002 2426 (May, 2003) 290 44; US 4311011 A (Jan, 1982) Lewis; US 4462213 A (Jul, 1984) Lewis; US 7156037 B2 (Jan, 2007) Borgen 114/264; US 7224080 B2 (May, 2007) Smedstad 290/43; US 7230348 B2 (Jun, 2007) Poole 290/55; US 7245039 B2 (Jul, 2007) DuHamel 290/44", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "F03D 3/00", "priorityNumbers": "", "issueDate": "December 30, 2008", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_7471010/en/", "accessDate": "2013-08-20T21:50:39Z", "shortTitle": "", "language": "", "rights": "", "extra": "290 4 R; 290 43; 290 44; 290 53; 290 54; 290 55", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:50:39Z", "dateModified": "2013-08-20T21:50:39Z" } }, { "key": "DC2TPKUH", "version": 3, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/DC2TPKUH", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/DC2TPKUH", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/199661/items/SNCG3WSN", "type": "application/json" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } } }, "data": { "key": "DC2TPKUH", "version": 3, "parentItem": "SNCG3WSN", "itemType": "attachment", "linkMode": "imported_url", "title": "Full Text (HTML)", "accessDate": "2013-08-20T21:48:40Z", "url": "http://www.patentlens.net/patentlens/patents.html?patnums=US_5798632&language=en&", "note": "", "contentType": "text/html", "charset": "utf-8", "filename": "patents.html", "md5": "9a3b1fbe23029f576ac77a1b289513dc", "mtime": 1377035320000, "tags": [], "relations": {}, "dateAdded": "2013-08-20T21:48:40Z", "dateModified": "2013-08-20T21:48:40Z" } }, { "key": "SNCG3WSN", "version": 2, "library": { "type": "group", "id": 199661, "name": "Wind Program Patents", "links": { "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/199661/items/SNCG3WSN", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/wind_program_patents/items/SNCG3WSN", "type": "text/html" } }, "meta": { "createdByUser": { "id": 250494, "username": "tsandberg", "name": "Tami Sandberg", "links": { "alternate": { "href": "https://www.zotero.org/tsandberg", "type": "text/html" } } }, "creatorSummary": "Eduard Muljadi", "parsedDate": "1998-08-25", "numChildren": 1 }, "data": { "key": "SNCG3WSN", "version": 2, "itemType": "patent", "title": "Variable speed wind turbine generator with zero-sequence filter", "creators": [ { "creatorType": "inventor", "firstName": "Golden CO", "lastName": "Eduard Muljadi" } ], "abstractNote": "A variable speed wind turbine generator system to convert mechanical power into electrical power or energy and to recover the electrical power or energy in the form of three phase alternating current and return the power or energy to a utility or other load with single phase sinusoidal waveform at sixty (60) hertz and unity power factor includes an excitation controller for generating three phase commanded current, a generator, and a zero sequence filter. Each commanded current signal includes two components: a positive sequence variable frequency current signal to provide the balanced three phase excitation currents required in the stator windings of the generator to generate the rotating magnetic field needed to recover an optimum level of real power from the generator; and a zero frequency sixty (60) hertz current signal to allow the real power generated by the generator to be supplied to the utility. The positive sequence current signals are balanced three phase signals and are prevented from entering the utility by the zero sequence filter. The zero sequence current signals have zero phase displacement from each other and are prevented from entering the generator by the star connected stator windings. The zero sequence filter allows the zero sequence current signals to pass through to deliver power to the utility.", "place": "US", "country": "", "assignee": "US 4087698 (May, 1978) Myers 307/84; US 4189648 (Feb, 1980) Harner 290/44; US 4218732 (Aug, 1980) Lafuze 363/160; US 4228361 (Oct, 1980) Jacobs et al. 290/44; US 4357542 (Nov, 1982) Kirschbaum 290/44; US 4695736 (Sep, 1987) Doman et al. 290/44; US 4794316 (Dec, 1988) Uchino et al. 322/47; US 4906060 (Mar, 1990) Claude 322/29; US 4992920 (Feb, 1991) Davis 363/36; US 5083039 (Jan, 1992) Richardson et al. 290/44; US 5155375 (Oct, 1992) Holley 290/44; US 5187427 (Feb, 1993) Erdman 323/207; US 5225712 (Jul, 1993) Erdman 290/44; US 5289041 (Feb, 1994) Holley 290/44; US 5652485 (Jul, 1997) Spiegel et al. 318/147", "issuingAuthority": "", "patentNumber": "", "filingDate": "", "pages": "", "applicationNumber": "H02P 900", "priorityNumbers": "", "issueDate": "August 25, 1998", "priorityDate": "", "references": "", "legalStatus": "", "DOI": "", "citationKey": "", "url": "http://www.patentlens.net/patentlens/patent/US_5798632/en/", "accessDate": "2013-08-20T21:48:36Z", "shortTitle": "", "language": "", "rights": "", "extra": "290/44; 290/55; 322/20; 322/29", "tags": [], "collections": [], "relations": {}, "dateAdded": "2013-08-20T21:48:36Z", "dateModified": "2013-08-20T21:48:36Z" } } ]