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:
Jan. 06, 1987
Filed:
Dec. 06, 1985
Rudolf Horsch, Davenport, IA (US);
J. I. Case Company, Racine, WI (US);
Abstract
A hydraulic transmission control system is provided for enhancing braking of a crawler-type tractor by controlling the engagement and disengagement of the clutches associated with right-hand and left-hand crawler tracks in response to actuation of the brakes associated with the tracks. The arrangement includes hydraulic pressure sensor means operatively associated with the hydraulic brake systems of the right-hand and left-hand crawler tracks. The system is arranged to selectively function such that actuation of both the right-hand and left-hand track brakes simultaneously prevents the normal disengagement of the track clutches, which permits the engine of the tractor to assist in braking. Actuation of a single brake pedal provides braking of the respective crawler track with disengagement of its respective clutch, while allowing the clutch of the opposite track to remain engaged to effect the pivot turning of the implement.