Low pressure check valve for artificial respiration devices

Details Low pressure check valve for artificial respiration devices Low pressure check valve for artificial respiration devices

1991-09-24

1992-04-14

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Supply and exhaust type

12820524, 1375122, 1375124, F16K 1110

Patent

active

051038544

ABSTRACT:
A valve assembly is disclosed for controlling fluid flow in a first direction and a second direction. The valve assembly includes a housing for enclosing a substantially circular regulator assembly which extends diametrically across the housing. The regulator assembly comprises a hub portion which is positioned centrally within the housing and connecting members which extend radially toward a rim portion which is supported by the housing. The hub portion supports a disk-shaped substantially inflexible portion of the regulator assembly which extends over the connecting members to engage the rim portion and thereby prevent fluid flow in a reverse flow direction through the regulator assembly. The connecting members of the regulator assembly are adapted to flex and allow the disk portion to move off of the rim and thereby allow fluid flow through the valve in the first direction.

REFERENCES:
patent: 2758609 (1956-08-01), Dickert et al.
patent: 3085591 (1963-04-01), Schneider
patent: 3435839 (1969-04-01), Elder
patent: 3739801 (1973-06-01), Rudolph
patent: 3741232 (1973-06-01), Soberski
patent: 4188978 (1980-02-01), De Lorenzo
patent: 4712583 (1987-12-01), Pelmulder et al.

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