Safety valve for discharge chutes on cement mixer

Details Safety valve for discharge chutes on cement mixer Safety valve for discharge chutes on cement mixer

1991-12-09

1993-06-01

Hepperle, Stephen M.

Conveyors, chutes, skids, guides, and ways

Chutes

Unloading

60481, 91471, 137460, 137498, 193 10, F16K 1724

Patent

active

052151786

ABSTRACT:
A safety valve which prevents the discharge chute from rapidly falling due to a sudden loss of hydraulic fluid pressure. The valve is located between the chute lift cylinder port and hydraulic system hose. The valve is actuated when the flow leaving the chute lift cylinder exceeds a predetermined flow. The valve immediately stops the hydraulic fluid from leaving the chute lift cylinder maintaining the position of the discharge chute.

REFERENCES:
patent: 2093015 (1937-09-01), Madden
patent: 2821209 (1958-01-01), Waterman
patent: 2960109 (1960-11-01), Wilson
patent: 3228658 (1966-01-01), London
patent: 4276975 (1981-07-01), Jenkins
patent: 4341235 (1982-07-01), Nord
patent: 4347867 (1982-09-01), Peters
patent: 4785847 (1988-11-01), Steer et al.
patent: 4867198 (1989-09-01), Faust
patent: 4870889 (1989-10-01), Wall

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