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:
Jul. 18, 1989
Filed:
Sep. 06, 1988
Applicant:
Inventor:
Robert L Chess, Troutdale, OR (US);
Assignee:
Hyster Company, Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192-358 ; 192 / ; 192 51 ; 192 8719 ;
Abstract
A clutch control for a multi-speed vehicle transmission having operator selected, hydraulically operatable clutches for the shifting of direction and speed includes a valve means which automatically engages a higher and a lower speed clutch in sequence when a direction shift is made. If the direction is shifted while the transmission is shifted to a lower speed range the next higher speed clutch will be momentarily engaged before the lower speed clutch is engaged.