Dual valve assembly

Details Dual valve assembly Dual valve assembly

1977-03-29

1978-08-01

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

128227, 128274, 137211, 13761421, 251139, A61M 500

Patent

active

041036867

ABSTRACT:
A dual valve assembly for intravenous infusions from multiple parenteral fluid sources, the assembly controlling both forward and reverse flow through a flow line includes normally seated first and second valves mounted for movement toward and away from respective valve seats to control flow in a first direction, one of said valves being opened in response to opening movement of the other valve and said one valve including a second seat and movable into closing relationship on its second seat in response to reverse flow to thus prevent reverse flow through the assembly.

REFERENCES:
patent: 2538662 (1951-01-01), Abbott
patent: 3886937 (1975-06-01), Bobo et al.
patent: 3890968 (1975-06-01), Pierce et al.
patent: 4000740 (1977-01-01), Mittleman
patent: 4005710 (1977-02-01), Zeddies et al.
patent: 4038981 (1977-08-01), LeFevre et al.

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