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:
Dec. 27, 1977
Filed:
Nov. 24, 1975
John K Amdall, Peoria, IL (US);
Gerald P Simmons, Washington, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
A control linkage for combined simultaneous control of an engine throttle and a transmission ratio control includes a foot pedal mounted for physical movement about a first axis from its zero position, a throttle linkage connecting the pedal to an engine throttle for movement therewith through the control range and transmission ratio control linkage connecting the control pedal to a ratio control valve for movement with the pedal through the control range and means for shifting the ratio control linkage to a first position for movement of the valve in a forward direction upon movement of the control pedal and shiftable to a second position for movement of the valve in the reverse direction upon the same movement of the control pedal.