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, 1998
Filed:
Nov. 13, 1997
Eugene R Braun, Royal Oak, MI (US);
William R Pankratz, Royal Oak, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A tamper-resistant technique for retaining the cover of an electronically controlled air pressure piston operated automatic overdrive shifter employed on the auxiliary section of a change-speed transmission for heavy on-highway truck. In one embodiment a spring loaded slider tracks movement of the piston to cam a locking pin into engagement with a blind bolt to prevent removal of the cover when the piston is not in the overdrive position thereby requiring test equipment to operate the controller for cover removal. In another embodiment, the cover mounting has portions frangibly removable upon installation with press-in discs covering the bolts thereafter to deter removal. In another embodiment, a blind recessed roll pin is driven through slots in the bolt head to deter removal.