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:
Feb. 06, 1990
Filed:
Apr. 11, 1988
Applicant:
Inventor:
Herbert A Bankstahl, Fond du Lac, WI (US);
Assignee:
Brunswick Corporation, Skokie, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 76 ; 440900 ; 440 78 ;
Abstract
A marine drive (2) includes a lower drive unit (4) having a strut portion (6) and a torpedo portion (10) which are blended along a blended portion (30) such that all horizontal cross-sections through the blended portion and the strut portion have outer profiles defining smooth continuous non-concave surface elements continuously curved convex along the entire front to back length thereof, and such that all vertical cross-sections through the strut portion, blended portion and torpedo portion have outer profiles defining a central zone (62) of concave outer surface elements wherein the degree of concave curvature continually increases front to back.