Dome check valve

Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections

Reexamination Certificate

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Details

C251S149600, C604S249000, C604S256000

Reexamination Certificate

active

11238680

ABSTRACT:
A valve comprising an inlet housing, an outlet housing, an elastomeric valve element having a generally dome-shaped configuration with a central integral stem positioned substantially concentrically therewith, the inlet housing and outlet housing being fastened together at a joint with the elastomeric valve element positioned therein and the valve element including a plurality of longitudinal ribs formed along an outer annular periphery of a lower end of the dome-shaped configuration that define flow channels that allow fluid flow from across an upper surface of the dome-shaped configuration through the flow channels.

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PCT Intl. Prel. Report, Mar. 21, 2007.

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