Resilient tires and wheels – Tires – resilient – Inflating devices
Patent
1989-06-14
1992-08-25
Gallagher, John J.
Resilient tires and wheels
Tires, resilient
Inflating devices
137224, B60C 2300
Patent
active
051415895
ABSTRACT:
A system for inflating and deflating pneumatic tires of a vehicle through pneumatically actuated tire isolating valves is disclosed which isolates air under pressure in the tires from the system and which utilizes electronically controlled valves for achieving opening of the tire isolating alves and inflating, deflating or checking the pressure. The system is improved by incorporation of a dump valve at each tire which permits rapid deflation of the tire pressure upon demand. The dump valve is tire and system pressure responsive and is integrated into the system in a manner to be responsive to any number of deflated tire pressures. The dump valve comprises a movable piston with two positions wherein the piston is releasably held in the second position by a mechanical detent until a suitable pressure differential occurs across the axial surfaces of the piston to cause the piston to be released from the detent and to move back to the first position.
REFERENCES:
patent: 2685906 (1954-08-01), Williams
patent: 2693841 (1954-11-01), Webster, Jr.
patent: 2989999 (1961-06-01), Holbrook et al.
patent: 3099309 (1963-07-01), Horta et al.
patent: 4619303 (1986-10-01), Bryan et al.
patent: 4782878 (1988-11-01), Mitall
patent: 4825925 (1989-05-01), Schultz
Gallagher John J.
Lorin Francis J.
Tire Inflation Systems Corp.
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