Title: One-way flex valve

Abstract: A check valve is provided comprising a cap having an inlet port and a body with an internal recess whose periphery is engaged with the cap and contains an outlet port. A rib extends across the body recess and is supported and urged against the cap by the rib substantially along the entire length of the rib. The diaphragm is engaged against the cap to close the valve, with the peripheral edges of the diaphragm being adapted to bend away from the cap to open the valve when a predetermined fluid pressure is exerted at the inlet port.

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Inventors: Ruschke, Ricky R. (McHenry, IL, US)
Schwades, Bette R. (Ingleside, IL, US)

Application Number: 942076
Filing Date: 1978-09-13
Publication_date: 1980-09-16
Assignee: Baxter Travenol Laboratories, Inc. (Deerfield, IL)
Primary Class(es): 137/512.15 137/843, 137/855
Other Classes:
US Patent Ref:

2270468	Jan, 1942	Osborne	137/512.
3312237	Apr, 1967	Mon	137/512.
3831628	Aug, 1974	Kintner	137/512.
3990439	Nov, 1976	Klinger	137/854.

Other Refs: 1351384

Apr, 1974	GB

Primary Examiner: Nilson, Robert G.
Assistant Examiner:
Attorney: Flattery; Paul C., Kirby, Jr.; John P., Gerstman; George H.