Backflow check valve for use with IV administration sets

Details Backflow check valve for use with IV administration sets Backflow check valve for use with IV administration sets

1980-01-30

1982-01-12

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

13753317, 137519, 128274, F16K 1502

Patent

active

043100171

ABSTRACT:
A backflow check valve includes male and female hubs sonically welded together with a flow control disc located within the check valve. The disc permits flow in one direction through the check valve, but prevents flow in the other direction through the check valve.

REFERENCES:
patent: 2919670 (1960-01-01), Clark, Jr. et al.
patent: 3758073 (1973-09-01), Schulte
patent: 3886937 (1975-06-01), Bobo et al.
patent: 4005710 (1977-02-01), Zeddies
patent: 4103686 (1978-08-01), Lefevre
patent: 4222407 (1980-09-01), Ruschke et al.
patent: 4244378 (1981-01-01), Brignola

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