Means for selectively transmitting drive

Details Means for selectively transmitting drive Means for selectively transmitting drive

1979-04-04

1981-02-03

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60543, 60565, 60583, 60594, 91 24, 92 605, F15B 702

Patent

active

042480450

ABSTRACT:
Drive is transmitted from a cam to a push rod via a body of liquid trapped between two pistons. A control element is normally urged against a seat by pressure in the body of liquid but can be lifted off its seat by the application of pressure to liquid in a control chamber. When the control element moves clear of its seat, liquid trapped between the pistons acts on a seat-engaging face of the control element and displaces the control element instead of driving the push rod.

REFERENCES:
patent: 2423677 (1947-07-01), Balogh
patent: 3010283 (1961-11-01), Jansson
patent: 3250335 (1966-05-01), Joelson
patent: 3653211 (1972-04-01), Strebel
patent: 3863681 (1975-02-01), Dostal
patent: 3972652 (1976-08-01), Minnicino
patent: 4006669 (1977-02-01), Price
patent: 4072013 (1978-02-01), Barbareschi
patent: 4116004 (1978-09-01), Geary

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