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:
Dec. 08, 2015
Filed:
May. 02, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
Michael R. Kaphengst, Leonard, MI (US);
Richard A. Knoth, Lake Orion, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A shaft coupling assembly retains a shaft end in a coupling element channel using a fastener inserted through a coupling element bore and a recess in an engagement segment of the shaft end to engage the coupling element to exert a clamping force on a shaft interface of the engagement segment. A projection having a smaller cross section than that of the shaft interface extends axially from the engagement segment and has sufficient length to protrude into the bore to interfere with fastener engagement prior to engagement of the shaft interface in the channel. A projection upper surface further interferes with the fastener bore to prevent engagement of the fastener when the shaft end has been engaged to the channel but not inserted to an installed position. The upper surface may be defined by an arcuate portion of the projection which may have a teardrop shaped cross section.