Vacuum actuated pump

Details Vacuum actuated pump Vacuum actuated pump

1987-03-27

1989-03-28

Wolf, Joseph J.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

Measured discharge from one and indeterminate flow from another

222309, 222334, 2221292, 239322, 4628, E03C 104

Patent

active

048156345

ABSTRACT:
A vacuum actuated chemical dispenser. The dispenser includes a chemical chamber and a vacuum chamber. The dispenser further includes a chemical chamber piston and a vacuum chamber piston located and movable within their respective chambers. A coil spring associated with the pistons returns the pistons to a pre-vacuum actuated position. The pistons are adjustable in order to adjust the measured amount of chemical to be dispensed from the chemical chamber.

REFERENCES:
patent: 1968716 (1934-07-01), Smith
patent: 2153519 (1939-04-01), Horton
patent: 3254797 (1966-06-01), Porter
patent: 3810391 (1974-05-01), Suovaniemi

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