Fluid handling – With casing – support – protector or static constructional... – Vehicle
Patent
1976-04-08
1978-02-21
Schwadron, Martin P.
Fluid handling
With casing, support, protector or static constructional...
Vehicle
74491, 74527, 251297, G05G 104, G05G 1300
Patent
active
040746909
ABSTRACT:
A pre-adjusted control module comprises a bracket assembly adapted for attachment to a support structure of a construction vehicle. A control lever is pivotally mounted within the bracket assembly along with a bellcrank having a roller mounted on a first arm thereof. The roller is adapted to selectively engage either one of two notches formed on a lower end of the control lever and is biased in that direction by a tension coil spring connected between the bracket assembly and a second arm of the bellcrank. A control rod is reciprocally mounted in the bracket assembly and has its first end pivotally connected to the control lever and is adapted to have its second end connected to a self-centering valve spool of a directional control valve. A preadjusted sensing means, including a compression coil spring, is connected between the bracket assembly and the control rod to alert the operator upon approach of one of the two detent positions of the control lever, as effected by engagement of the roller with one of the two notches formed on the control lever.
REFERENCES:
patent: 3372606 (1968-03-01), McGrath et al.
patent: 3492889 (1970-02-01), Hauff
patent: 3519155 (1970-07-01), Jefferson et al.
patent: 3792744 (1974-02-01), Gray
Adams Stanley B.
Carbaugh Frederick A.
Cryder John R.
Caterpillar Tractor Co.
Gerard Richard
Schwadron Martin P.
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