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:
Nov. 15, 2011
Filed:
Dec. 13, 2006
Applicant:
Craig A. Campbell, Auburn Hills, MI (US);
Inventor:
Craig A. Campbell, Auburn Hills, MI (US);
Assignee:
GKN Driveline North America, Inc., Auburn Hills, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shaft assembly, comprising: a generally hollow shaft having first and second ends and at least one internal tube positioned within the shaft so as to be adapted to be placed under tension to control the natural frequency of the shaft. The shaft assembly has a predetermined length and the series of internal tubes has a cumulative length that is greater than the predetermined length of the shaft.