Valve assembly

Details Valve assembly Valve assembly

1983-04-22

1985-02-05

Walton, George L.

Fluid handling

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

Cleaning or steam sterilizing

1510416, 13762538, 1376255, 251 95, 251251, 222148, B08B 904, F16K 31524

Patent

active

044973365

ABSTRACT:
A valve assembly is disclosed which comprises a housing having at least two fluid ports which are adapted for connection to a fluid system. A piston is slidably mounted in the housing and movable between a first position in which the fluid ports are fluidly connected and a second position in which the fluid ports are fluidly disconnected. A seal is carried by the piston and engages a sealing surface in the housing when the piston is in its second position. A scraping member is also carried by the member so that the scraping member passes across and engages the sealing surface as the piston is moved from its first and to its second position thereby cleaning the seal surface. Preferably an eccentric cam is employed for moving the piston between its first and second positions.

REFERENCES:
patent: 2066112 (1936-12-01), Humblet
patent: 2130614 (1938-09-01), Collins et al.
patent: 2662721 (1953-12-01), Giauque
patent: 3572384 (1971-03-01), Taylor
patent: 3658083 (1972-04-01), Fetterolf et al.
patent: 3951170 (1976-04-01), Hill

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