Sail powered windmill

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Description

FIG. 1 is a front perspective view of a sail powered windmill showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view of a sail powered windmill showing a second embodiment of my new design, it being understood that the sole difference resides in the use of just four blades;

FIG. 6 is a right side elevational view of the embodiment of FIG. 5;

FIG. 7 is a front elevational view of a sail powered windmill showing a third embodiment of my new design, it being understood that the sole difference resides in the use of just three blades; and

FIG. 8 is a right side elevational view of the embodiment of FIG. 7.

Referenced Cited
U.S. Patent Documents
4066911 January 3, 1978 Sarchet
4276033 June 30, 1981 Krovina
Other references
  • Windcatchers, p. 21, Portuguese Windmill.
Patent History
Patent number: D275010
Type: Grant
Filed: Jun 1, 1981
Date of Patent: Aug 7, 1984
Inventor: Richard K. McLean (Santa Barbara, CA)
Primary Examiner: James M. Gandy
Attorney: Daniel J. Meaney, Jr.
Application Number: 6/268,880
Classifications
Current U.S. Class: Engine (D15/1)