Vacuum pump valve

Details Vacuum pump valve Vacuum pump valve

2006-09-19

2006-09-19

Koczo, Jr., Michael (Department: 3746)

Receptacles

Closures

With condition responsive vent or valve

C137S533310, C141S065000

Reexamination Certificate

active

07108147

ABSTRACT:
A vacuum pump valve includes a valve body and a suction diaphragm. The valve body includes a sealing platform sealedly attached on the container at the opening thereof, and a guiding sleeve upwardly extended from the sealing platform to form a suction channel, wherein the sealing platform has an operation slot formed thereon at a position within the suction channel and at least a through ventilating groove communicating the receiving cavity of the container with an exterior thereof. The suction diaphragm is disposed within the suction channel of the valve body, including an enlarged sealing head adapted to seal on the sealing platform to enclose the ventilating groove thereof, and a guiding shaft extended from the sealing head to slidably mounted at the sealing platform at the operation slot to move the sealing head between a releasing position and a sealing position.

REFERENCES:
patent: 1907770 (1933-05-01), Feagles et al.
patent: 4479460 (1984-10-01), Webber
patent: 4691836 (1987-09-01), Wassilieff
patent: 5031785 (1991-07-01), Lemme
patent: 5121590 (1992-06-01), Scanlan
patent: 6349842 (2002-02-01), Reutter
patent: 4103883 (1992-08-01), None

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