Fluid flow control valve

Details Fluid flow control valve Fluid flow control valve

1978-03-06

1980-05-27

Schwadron, Martin P.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

239123, 239562, 251 45, E16K 2106

Patent

active

042045576

ABSTRACT:
The invention relates to a fluid flow control valve of the type in which flow through the valve is controlled by movement of a chamber wall caused by fluid flowing into the chamber through a restricted inlet and a cleaning element is provided to clean the inlet. In this invention, the cleaning element is longer than the restricted inlet and is movable between a first position in which it does not extend through the restricted inlet and a second position in which it extends completely through the restricted inlet. The cleaning element is a rod-like element of self-supporting flexible synthetic plastics material and has a limited inherent rigidity enabling it to force dirt and scale from the restricted inlet.

REFERENCES:
patent: 2154811 (1939-04-01), Goss
patent: 2181581 (1939-11-01), Fraser
patent: 2833300 (1958-05-01), Sirotek
patent: 3111271 (1963-11-01), Lofgren
patent: 3752174 (1973-08-01), Turolla
patent: 4022380 (1977-05-01), Scragg
patent: 4059127 (1977-11-01), Olson

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