Sanitary check valve

Details Sanitary check valve Sanitary check valve

2007-10-30

2007-10-30

Huson, Gregory (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S859000

Reexamination Certificate

active

10860252

ABSTRACT:
A check valve adapted for mounting between any flanges and specifically between sanitary flanges in a piping system, the check valve comprising a stationary portion and a flexible portion; the single-piece rigid stationary portion including and supporting a valve seat; the single-piece molded elastomeric flexible portion including a flange gasket, a valve plug, flexible retaining arms for guiding and securing the valve plug movement with respect to the valve seat, and a visual means to indicate that the check valve is installed, permits flow in the desired direction, and is drainable; the check valve being fully cleanable and sterilizable in situ by flow-through methods and having at least one embodiment that is fully drainable when mounted in any orientation.

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Check-All Valve Manufacturing, Style SCV Sanitary Cartridge Valve, Sep. 2002.
Check-All Valve Manufacturing, Style 3SC Sanitary Check Valve, Sep. 2002.
Check-All Valve Manufacturing, Style SIV Sanitary Insert Valve, Sep. 2002.
Waukesha Cherry-Burrell, W45 Check Valve, Apr. 1997.
Lumaco, Concentric Check Valve, undated, printed from web site Oct. 18, 2002.
DFR Incorporated, DSV Sanitary Check Valve, undated, printed from web site approximately Oct. 2002.

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