B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
303/71
B62D 11/08 (2006.01) B60T 11/10 (2006.01) B60T 13/16 (2006.01) B60T 13/22 (2006.01)
Patent
CA 1101469
VEHICLE STEERING BRAKE AND CLUTCH CONTROL A B S T R A C T A crawler tractor vehicle having steering clutches and associated steering brake includes a control apparatus for each clutch and brake system, including a valve made up of a valve body, and a clutch valving spool and a brake valving spool movably associated therewith. In one embodiment, the clutch valving spool and brake valving spool are identical in configuration, and are disposed in a common bore. Actuator means are associated with such clutch valving spool and brake valving spool, in one embodi- ment including an actuator assembly made up of a plurality of plungers movable relative to each other and relative to the valve body to provide particular movement of the clutch and brake valving spools. In another embodiment, the actuator means comprise mechanical linkage means, for providing movement of brake and clutch valving spools positioned in respective separate bores defined by the valve body.
276841
Burdette Stephen D.
Cackley George W.
Hakes Gary A.
Morris Hugh C.
Shook Norma G.
Caterpillar Tractor Co.
Smart & Biggar
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