Manual or pump assist fluid dispenser

Details Manual or pump assist fluid dispenser Manual or pump assist fluid dispenser

2007-04-03

2007-04-03

Shaver, Kevin (Department: 3754)

Dispensing

With fluid trap seal for inlets or outlets

C222S457000, C222S587000, C222S333000, C222S481500

Reexamination Certificate

active

10810615

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. A chamber about an opening of an inverted container with an impeller within the chamber which, on rotation, dispenses fluid from the chamber.

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