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:
Jun. 21, 1994
Filed:
Mar. 30, 1993
Applicant:
Inventors:
Michael A Karls, Hilbert, WI (US);
Daniel R Lindgren, Fond du Lac, WI (US);
Assignee:
Brunswick Corporation, Skokie, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4162 / ; 416 / ; 4161 / ; 464 89 ; 464180 ;
Abstract
In a marine drive (10), a drive sleeve (50) between the propeller shaft (22) and the propeller hub (34) absorbs shock after the propeller (12) strikes an object by torsionally twisting between a forward end keyed to the propeller hub and a rearward end keyed to the propeller shaft. The drive sleeve is composed of a plastic material providing torsional twisting angular rotation at a first spring rate less than 100 lb. ft. per degree from 0.degree. to 5.degree. rotation, a second higher spring rate beyond 5.degree. rotation, and supporting over 1,000 lb. ft. torque before failure.