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. 10, 1988
Filed:
Dec. 18, 1986
Applicant:
Inventors:
Joseph L Eldridge, Libertyville, IL (US);
Terrance P Lynch, Sanford, NC (US);
Assignee:
Payhauler Corp., Batavia, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; B60K / ; B60K / ;
U.S. Cl.
CPC ...
74745 ; 74335 ; 192-357 ; 1921 / ;
Abstract
A transmission includes a range selector valve that eliminates the possibility of unintentional simultaneous multiple gear engagement by a fail safe arrangement of fluid flow paths and valving. A pair of parallel paths connect to clutches that operate a high-low power shift transmission and a multiple speed power shift main transmission. The fluid flow path to the multiple speed power shift main transmission clutches is valved to select either a first or second group of speed/direction settings. Each of these groups then includes at least one valve to select a particular transmission speed or direction setting.