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2, United States Patent (10) Patent No.: US 8,657,575 B2 Morris (45) Date of Patent: Feb. 25, 2014 (54) OSCILLATING FLUID POWER GENERATOR 3.442.493 A 5/1969 Smith 3.647.315 A 341972 Rostad ct all 76) - id €. is : y : 3.743.848 A F973. Strickland (76) Inventor: David C. Morris. New York, NY (US) Seo A Lio Bogen ee ye . 3.809.006 A * $1974 Fim 40°32 Notice: — Subject to any disclaimer. the term of this 3.867.058 A * 21995 Tendrickson 41125 patent is extended or adjusted under 35 3.995.972 A * 1211976 Nassar ... ALG68 U.S.C. 154(b) by 1616 days. 511977 Payne * 9/1977 Sicard 440: : 5. * 10/1977 Rumsey 416119 (21) Appl. No. 11/895,568 SHOBL Loyd (22) Tiled Aug, 23,2007 [1981 Hohenemser filed: Aug. 23, . . (Continued) (65) Prior Publication Data US 2007/0297903 Al Dec. 27, 2007 Related U.S. Application Data (63) Continvation-in-part of application No PCT/U82006/006432. filed on Feb. 24. 2006. (60} Provisional application No. 60/656,787, filed on Feb 25, 2005, provisional application No. 60/660,880, filed on Mar. 10, 2005. provisional application No 60/678,717, filed on May 6, 2003, provisional application No. 60/736,489. filed on Nov. 14, 2008. G1 nt. Ch. FORD 5/06 (52) US. CL USPC (58) Field of Clas: USPC .. (2006.01) 416/79 ication Search 415/21, 3.1, 4.1. 4.2. 4.3, 4.4.4.5. 905, 415/906, 907, 908: 416/24, 79, 80, 81, 82. Soe application file for complete search history. (36) References Cited U.S. PATENT DOCUMENTS 252,047 A 11882. Jones et al 1,27: A R918 1,633,460 A 61927 § FOREIGN PATENT DOCUMENTS DE 684417 11/1939 HP 490830, 671902 (Continued) Primary Examiner — Nathaniel Wiehe Assistant Fxaminer Ryan Tillis, (74) Attorney, Agent, or Firm Robert M Hunter 67) ABSTRACT A system and method for harvesting the kinetic energy of a fiuid flow for power generation with a vertically oriemed, aerodynamic wing structure comprising one or more girloil elements pivotably attached to a mast. When activated by the moving fluid stream, the wing structure oscillates back and forth, generating lift first in one direction then in the opposite direction. This oscillating movement is converted to unidi- rectional rotational movement in order to provide motive power lo an electricity generator, Unlike other oscillating this device is designed to harvest (he maximum acro- dynamic lil forces available lor a given oscillation cycle. Because the system is nol subjected to the same intense forces and stresses as lurbine syslems. it can be constructed less expensively. reducing the cost of electricity generation. The system can be grouped in more compact clusters, be less ovident in the landscape, and present reduced risk to avian species. 16 Claims, 32 Drawing Sheets 
