Dash control valve with differential trip

Details Dash control valve with differential trip Dash control valve with differential trip

1988-06-27

1989-07-04

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

13762526, 13762549, 303 50, 303 71, B60T 1300

Patent

active

048445533

ABSTRACT:
A control valve for a fluid pressure braking system includes a housing which receives a pair of identical plungers and corresponding springs acting on the plunger which activate automatically at different trip pressures. The differential trip pressures are attained by providing different valve seating areas on the housing and spring cavities of different depths.

REFERENCES:
patent: 4163584 (1979-08-01), Koenig
patent: 4232908 (1980-11-01), Stearns
patent: 4307917 (1981-12-01), Hasselbacher et al.
patent: 4330157 (1982-05-01), Sebo
patent: 4629256 (1986-12-01), Fannin
patent: 4657311 (1987-04-01), Fannin
patent: 4691737 (1987-08-01), Sebo

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