192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1980-05-01
1982-01-12
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 3M, 192 4A, 180 648, 180271, 60486, B60K 4120
Patent
active
043100783
ABSTRACT:
Hydrostatic tractor's drive and braking system, particularly one controlled, first, by a tractor safety lock lever which, when put "on," both neutralizes the engine-driven, variable ratio hydrostatic system for positively preventing drive and also sets the brakes for simultaneously positively preventing rolling and, second, by a two-stage brake pedal which is overcontrolled by the safety lock lever whenever the lever is "on" and which operates initially to intensify engine braking by increasing the hydraulically fixed ratio of the hydrostatic drive and its rate of dynamic dissipation of power, and which operates finally to neutralize drive and set brakes in an overlapping sort of way with the function of the safety lock lever and exactly the same as the safety lock lever does whenever "on."
REFERENCES:
patent: 3400790 (1968-09-01), Ruhl et al.
patent: 3811020 (1974-05-01), Johnson et al.
patent: 3823792 (1974-07-01), Dinkloh et al.
patent: 3988893 (1976-11-01), Bojas et al.
patent: 4019596 (1977-04-01), Crull
patent: 4072009 (1978-02-01), Daschievici et al.
patent: 4076090 (1978-02-01), Krusche et al.
AuBuchon F. David
Gaines John W.
International Harvester Company
Krizmanich George H.
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