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. 05, 1991
Filed:
Jun. 04, 1990
Applicant:
Inventors:
Vincent N Carpenter, Elk Rapids, MI (US);
William J LaRocca, Sterling Heights, MI (US);
Assignee:
Dura Mechanical Components, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
192 / ; 7448 / ; 180271 ;
Abstract
A shifter for an automatic transmission is prevented from shifting out of park position when the ignition switch is on unless the service brake is applied. A solenoid-operated blocking member is positioned to selectively block movement of a detent pin to prevent the shift lever from leaving the park position of the shift gate. A circuit including switches responsive to ignition, service brake application and shift lever position controls solenoid activation. A cam responsive to the shift lever release button and to the lever position controls the shift lever position switch.