Vacuum relief device

Details Vacuum relief device Vacuum relief device

2008-05-27

2008-05-27

Shaver, Kevin (Department: 3754)

Dispensing

Resilient wall

With flow controllers or closures

C222S457000, C222S587000, C222S207000, C222S185100

Reexamination Certificate

active

10983574

ABSTRACT:
Liquid soap dispensers including a vacuum relief valve which comprises an enclosed chamber having an air inlet open to the atmosphere and a liquid inlet in communication with liquid in the reservoir and in which the liquid inlet opens to the chamber at a height below a height at which the air inlet opens to the chamber. The vacuum relief valve permits relief of vacuum from the reservoir without moving parts or valves.

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