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US 4,727,915 AGranted
Automatic shut-off liquid dispensing nozzle
OwnerRichard L. Grantinventor
Life of this patent
Estimating the term…
Abstract
A filling nozzle which is releasably secured to a container through which liquid can be dispensed from the container into another receptacle when the nozzle is directed downwardly in a liquid dispensing position. The nozzle contains a butterfly valve for automatically shutting off the flow of liquid from the container to the receptacle when the receptacle is substantially filled.
Claims6
A filling device for mounting on a first liquid container used for containing a liquid for filling a second liquid container, the filling device comprising:
- nozzle means for transferring said liquid from the first liquid container to the second liquid container, said nozzle means further comprising:
- a tubular member having a valve means therein for automatically responding to a rise in a liquid level in an output end of said nozzle means, said valve means further comprising:
- a butterfly valve having a central pivot axis within said tubular member, a first portion of said butterfly valve being on one side of said central pivot axis and a second portion of said butterfly valve being on another side of said central pivot axis, said first valve portion having a first buoyancy and said second valve portion having a second buoyancy, said first buoyancy being greater than said second buoyancy whereby said rising level of liquid in said tubular member causes the valve means to close.
Dependencies are inferred from the claim text.