The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2001
Filed:
Dec. 24, 1998
Applicant:
Inventor:
John Edward Roberts, Los Altos, CA (US);
Assignee:
General Dynamics Government Systems Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H 1/26 ;
U.S. Cl.
CPC ...
B63H 1/26 ;
Abstract
Non-planar propellers or windmill blade assemblys are proposed which have tips that are curved to point in the same direction as the axis of rotation of the propeller. This non-conventional design results in a stronger, stiffer, and more efficient propeller or windmill.