Motors: expansible chamber type – Working member position responsive motive fluid control – Alternate control of inlet and exhaust for same chamber at...
Patent
1980-09-08
1983-10-18
Maslousky, Paul E.
Motors: expansible chamber type
Working member position responsive motive fluid control
Alternate control of inlet and exhaust for same chamber at...
91298, 91319, 91356, 91398, F15B 1115
Patent
active
044098863
ABSTRACT:
Control apparatus includes means defining a housing having a hollow and a piston device mounted for reciprocating movement in said hollow under the influence of pressure fluid applied alternately to each of opposite portions of its surface, characterized by means for transmitting a signal of a predetermined travel of said piston in one direction, said signal transmitting means being constructed and arranged to utilize applied pressure fluid in its signalling function. A preferred embodiment illustrated includes a rod having one end connected for movement with said piston device and its opposite end projected through and outwardly of said housing to exercise a control function as it projects and retracts in accordance with the movements of said piston device, said signal transmitting means including said rod, at least a portion of said rod having a passage through which applied pressure fluid may pass, at least in one direction of its application, to provide for said signal and a port in said housing arranged to communicate with said passage at a predetermined point of movement of said piston device and said rod in one direction, to provide for issuance of said signal from said housing.
REFERENCES:
patent: 398930 (1889-03-01), Barth
patent: 810603 (1906-01-01), Badger
patent: 964866 (1910-07-01), Jenner
patent: 3035548 (1962-05-01), Wittlich
Bloom Jerome P.
Maslousky Paul E.
Mosier Industries Inc.
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