Multi-vacuum release for pump

Details Multi-vacuum release for pump Multi-vacuum release for pump

1993-09-08

1994-11-08

Gluck, Richard E.

Pumps

Expansible chamber type

Having separate noncyclic valve

251243, 251244, F04B 4100

Patent

active

053622146

ABSTRACT:
A hand-held vacuum pump with an attached vacuum release valve is disclosed. The vacuum release valve is oriented so that the hand-held vacuum pump and the vacuum release valve can be operated with the same hand. The vacuum release valve is operated using a trigger, allowing the operator to easily and controllably release the vacuum. The trigger is shaped to allow the operator to vary the vacuum release rate without changing the physical features of the mechanism. Further, a detachable trigger extension is disclosed which will enable operator's with small hands to operate the device with one hand.

REFERENCES:
patent: 1751608 (1930-03-01), Tittemore et al.
patent: 2612339 (1952-09-01), Ferruzzi
patent: 3211416 (1965-10-01), Billeter et al.
patent: 4806084 (1989-02-01), Neward
patent: 5112203 (1992-05-01), Neward

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