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:
May. 12, 1992
Filed:
Nov. 20, 1990
Applicant:
Inventors:
Jeffrey C Marks, Waterloo, IA (US);
Jon R Delaney, Waterloo, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
192 / ; 180271 ;
Abstract
A park brake sensor valve is added to a circuit having an engagement override valve (EOV). The EOV normally prevents engagement of the transmission any time a vehicle is started with the speed selector in any position other than neutral. The park brake selector valve causes the EOV to disengage the transmission anytime the park brake is activated.