High pressure micro valve

Details High pressure micro valve High pressure micro valve

1993-07-22

1994-11-15

Nilson, Robert G.

Valves and valve actuation

Reciprocating valve

Push or pull operator

251323, F16K 148

Patent

active

053640705

ABSTRACT:
A bi-directional flow valve for use in regulating flow of pressurized fluids in surgical instruments is disclosed. The valve comprises a valve body having an axial bore of variable radius, a plunger axially and slidably mounted within the bore of the valve body, a flange provided on the plunger for circumferentially engaging the bore at its narrowest point, a spring means for urging the flange against the bore at its narrowest point, and seal means to seal the gap between the plunger and the bore, and displacement means to move the plunger and flange out of contact with the bore so that fluid may pass through the bore and thus through the valve.

REFERENCES:
patent: 775719 (1904-11-01), Davidson
patent: 891284 (1908-06-01), Nethery
patent: 1852069 (1932-04-01), Wollheim
patent: 2287992 (1942-06-01), Grove
patent: 3148700 (1964-09-01), Friedell
patent: 3730224 (1973-05-01), Prisk
patent: 4062517 (1977-12-01), Jones
patent: 4316600 (1982-02-01), Parise
patent: 5064168 (1991-11-01), Raines et al.

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