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:
Mar. 19, 1996
Filed:
Jan. 12, 1995
Applicant:
Inventors:
Kennedy K McElroy, Jr, Lindenhurst, IL (US);
James Bonifield, New Berlin, WI (US);
Dale Boschke, Pewaukee, WI (US);
Richard A Krajewski, Calhoun, GA (US);
Assignee:
Outboard Marine Corporation, Waukegan, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 83 ; 464179 ; 148212 ; 148318 ; 148904 ;
Abstract
A monolithic metallic drive shaft for a marine propulsion device is disclosed which is resistant to corrosion. The drive shaft comprises proximal and distal end portions, each of which has a predetermined surface hardness. The surface hardness of one of the proximal and distal end portions is greater than the surface hardness of the other of the proximal and distal end portions.