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. 13, 1989
Filed:
Aug. 15, 1986
Applicant:
Inventor:
Benjamin E Coursin, Milwaukee, WI (US);
Assignee:
A. O. Smith Corporation, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
464181 ; 464183 ;
Abstract
A fiber reinforced resin drive shaft for use in a vehicle and having improved resistance to torsional buckling. The drive shaft includes a tubular member composed of a thermosetting resin reinforced with fibrous material which consists of a mixture of substantially continuous glass and graphite fibers. A rib is integrally connected to the tubular member and extends radially from the member. The rib extends only a portion of the length of the member and has a thickness sufficient to substantially increase the resistance of the tubular member to torsional buckling.