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:
May. 10, 1977
Filed:
Mar. 10, 1975
Jeffrey W Kirsch, La Jolla, CA (US);
Edward A Day, Rancho Santa Fe, CA (US);
Systems, Science and Software, La Jolla, CA (US);
Abstract
Means for reducing the air drag on bluff vehicles are disclosed which facilitate improved fuel mileage and reduce induced air turbulence adjacent the vehicle. In one embodiment the air drag reducing means employs an airvane member secured in spaced relation to an air flow guide element in kit form for mounting adjacent a corner edge of the bluff surface to prevent separation of air flow from the corner edge and adjacent rearward surface of the vehicle and develop a net forward thrust on the air drag reducing means. Another embodiment includes an airvane member and means for mounting it adjacent a smooth curved windward corner edge of a bluff surface on the vehicle so as to define an air flow passage through which air passes from the bluff surface in attached relation to the corner edge and adjacent rearwardly extending surface of the vehicle.