Nonreturn valve for medical fluid technologies

Details Nonreturn valve for medical fluid technologies Nonreturn valve for medical fluid technologies

1994-02-16

1997-04-08

Michalsky, Gerald A.

Fluid handling

Line condition change responsive valves

Direct response valves

604247, F16K 1514

Patent

active

056178972

ABSTRACT:
A nonreturn valve for use in controlling the flow of medical fluid. The valve has two mating valve shells which carry and communicate with first and second pipe connectors, respectively. A diaphragm with a protrusion on its periphery is held between the valve shells. Circumferentially disposed retaining formations on each of the valve shells causes pretension to occur in the diaphragm upon assembly of the valve shells. The axial location of the retaining formation on the valve shell which carries the valve seat is such that tension in the diaphragm lightly urges the diaphragm into sealing engagement with the valve seat, whereby a seal exists when there is no significant pressure on either side of the diaphragm.

REFERENCES:
patent: 2758609 (1956-08-01), Dickert et al.
patent: 3084707 (1963-04-01), Frye
patent: 3270771 (1966-09-01), Morgan et al.
patent: 3599657 (1971-08-01), Maldaus
patent: 4089349 (1978-05-01), Schenk
patent: 4593720 (1986-06-01), Bergandy
patent: 4712583 (1987-12-01), Pelmulder et al.
patent: 4768547 (1988-09-01), Danby et al.
patent: 5025829 (1991-06-01), Edwards et al.
patent: 5215538 (1993-06-01), Larkin

Affiliated with

Also associated with

Rating

Nonreturn valve for medical fluid technologies does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nonreturn valve for medical fluid technologies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonreturn valve for medical fluid technologies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2393127