Self-cleaning pressure relief and bypass valve, dispensing appar

Details Self-cleaning pressure relief and bypass valve, dispensing appar Self-cleaning pressure relief and bypass valve, dispensing appar

1998-09-22

1999-11-16

Walczak, David J.

Dispensing

With discharge assistant

With bypass or return to supply

222148, 137238, B65D 8854

Patent

active

059841486

ABSTRACT:
Liquid dispensing apparatus and methods for dispensing pressurized liquid including the use of a pressure relief and bypass valve. The liquid dispensing apparatus may include a pump operatively connected to a liquid reservoir and one or more liquid dispensers. A pressure relief and bypass valve is generally connected between an outlet of the pump and the liquid dispenser for providing both a pressure relief function and a bypass cleaning or flushing function. The bypass function helps prevent contaminants from lodging or accumulating within the valve.

REFERENCES:
patent: 3115894 (1963-12-01), Marx
patent: 3474816 (1969-10-01), Burgess
patent: 4360132 (1982-11-01), Vilagi et al.
patent: 4565217 (1986-01-01), McIntyre
patent: 4657047 (1987-04-01), Kolibas
patent: 4932424 (1990-06-01), Taylor
patent: 5289810 (1994-03-01), Bauer et al.
patent: 5715864 (1998-02-01), Andel et al.
patent: 5775360 (1998-07-01), Hayashi et al.

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