Check valve for use with a syringe

Details Check valve for use with a syringe Check valve for use with a syringe

1986-08-18

1988-08-23

Nilson, Robert G.

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

137850, 604256, F16K 2104

Patent

active

047655887

ABSTRACT:
A check valve for sealing a fluid supply while permitting selective withdrawal of fluid includes a tubular side wall defining an insertion end and a supply end. A diaphragm is connected to the side wall and extends across the tube interior to close the interior. The diaphragm defines a slit therein extending diametrically across the diaphragm. The diaphragm is defined as a concave surface toward the insertion end of the side wall. A housing secures the side wall, encloses the supply end thereof, and exposes the insertion end. A port extends through the housing to communicate with the supply end.

REFERENCES:
patent: 3308798 (1967-03-01), Snider
patent: 3601151 (1971-08-01), Winnard
patent: 3831629 (1974-08-01), Mackal et al.
patent: 3837381 (1974-09-01), Arroyo
patent: 3889675 (1975-06-01), Stewart
patent: 4341239 (1982-07-01), Atkinson
patent: 4387879 (1983-06-01), Tauschinski
patent: 4566493 (1986-01-01), Edwards et al.

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