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:
Mar. 27, 1979
Filed:
Sep. 06, 1977
W Gene Stevens, Dunlap, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
A transmission control assembly for a transmission having an input clutch movable between an engaged position and a disengaged position, a plurality of gears, a shaft, and a plurality of sliding collars selectively coupling the gears to the shaft, the control assembly including an input clutch control system having a manually operated input clutch control member movable between a first position and a second position for respectively selecting the engaged and disengaged positions of the input clutch, a shift control mechanism for urging one of the sliding collars into an active position connecting one of the gears to the shaft, the shift control mechanism having a manually operated speed control member movable between a plurality of speed positions, and an interlock control system for automatically preventing movement of the speed control member between the speed positions until the input clutch control member is at the second position.