Fluid handling – Systems – Multi-way valve unit
Patent
1987-01-15
1988-03-01
Chambers, A. Michael
Fluid handling
Systems
Multi-way valve unit
13762525, 137353, F16K 11065
Patent
active
047279052
ABSTRACT:
A pneumatic control device for controlling a pneumatic system operable in a plurality of modes, including: push levers corresponding to the operation modes and movable in a first direction to its operated position, the push levers being spaced from each other in a second direction perpendicular to the first direction; changeover switches operated by the push levers for selectively establishing the operation modes, each switch including an actuator member movable within the housing in the second direction between its first and second positions; and a plurality of plate cams superposed on each other and disposed so as to extend in the second direction, in operative association with the push levers so as to cause relative longitudinal movements of the cams upon movements of the push levers to the operated position, each cam engaging the operating portion of at least one of the switches, so that the operating portion of each switch engaging the cam is moved in the second direction together with the cam upon the movement of the cam, the relative longitudinal movements of the cams being determined so as to place the actuator members selectively in the first and second positions depending upon the operated push levers, thereby placing the pneumatic system in the operation modes selected by the operated push levers.
REFERENCES:
patent: 47072 (1865-03-01), Thorn
patent: 2792019 (1957-05-01), Leisen
patent: 3820828 (1974-06-01), Fiddler
patent: 4305569 (1981-12-01), Raab et al.
Chambers A. Michael
Fox John C.
Kojima Press Industry Co. Ltd.
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