Reciprocating device and switching mechanism therefor

Details Reciprocating device and switching mechanism therefor Reciprocating device and switching mechanism therefor

1987-12-30

1989-05-09

Garrett, Robert E.

Motors: expansible chamber type

Cyclically operable

Multiple exhaust passages

91268, 91272, 91329, 91341A, 91350, 13762527, F01L 1514, F01L 2300

Patent

active

048278319

ABSTRACT:
A reciprocating device comprising a housing having a chamber and a reciprocable member reciprocable in the chamber. First and second pressure valves are connectible to a source of fluid under pressure to drive the reciprocable member and first and second passages lead from the first and second pressure valves to the chamber on opposite sides of the reciprocable member, respectively. First and second exhaust valves are coupled, respectively, to the first and second passages at locations intermediate the associated pressure valve and the chamber and communicating with the first and second vents, respectively. Actuators are drivable by the piston for switching the valves between first and second positions, and the fluid under pressure retains the valves in whichever of the positions they are placed.

REFERENCES:
patent: 2925782 (1960-02-01), Sharpe et al.
patent: 3236441 (1966-02-01), Russell
patent: 3794075 (1974-02-01), Stoll et al.
patent: 4393749 (1983-07-01), Miyazaki
patent: 4610192 (1986-09-01), Hartley et al.
patent: 4674958 (1987-06-01), Igarashi et al.

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