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. 03, 1996
Filed:
Feb. 06, 1995
Applicant:
Inventor:
Duane J Bonvallet, Ann Arbor, MI (US);
Assignee:
Trio Tool Company, Livonia, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B23P / ;
U.S. Cl.
CPC ...
29724 ; 2989809 ;
Abstract
An apparatus for preloading a bearing set that supports a pinion shaft in a differential gear assembly includes a low torque drive assembly for rotating the pinion shaft connected to a high torque drive assembly for tightening a pinion nut. A sensor assembly measures the drag torque of the rotating pinion shaft as the pinion shaft nut is being tightened to indicate bearing preload.