Fluid dispenser valve with rolling diaphragm

Details Fluid dispenser valve with rolling diaphragm Fluid dispenser valve with rolling diaphragm

1987-08-11

1989-05-16

Rolla, Joseph J.

Dispensing

With discharge assistant

With biasing means for discharge assistant and/or its casing

222380, 222383, 222501, 92 98D, 92 99, 92100, 92101, B65D 8854

Patent

active

048302325

ABSTRACT:
A valve for dispensing a liquid such as soap or hand lotion, from a fluid dispenser. A valve body for mounting in the fluid dispenser and having a valve chamber with a rolling diaphragm carried in the body dividing the chamber into a piston section and a fluid flow section. A piston is slidingly positioned in the piston section and a flow restrictor is slidingly positioned in the fluid flow section, with a spring in the fluid flow section urging the restrictor into engagement with the diaphragm for moving the piston to the out position. A fluid inlet and a fluid outlet are provided in the fluid flow section so that an inward movement of the piston dispenses fluid and an outward or return motion of the piston draws a new charge of fluid into the valve.

REFERENCES:
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Bobrick Technical Data Form Model B-111 Copyright Dated 1986, Bellofram Diaphragm Design Manual, Copyright Dated 1980.
Bobrick Parts List, Issued Aug. 1, 1983.

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