Vacuum valve

Details Vacuum valve Vacuum valve

2007-07-03

2007-07-03

Lee, Kevin (Department: 3753)

Fluid handling

Convertible

C137S907000, C251S326000

Reexamination Certificate

active

11135420

ABSTRACT:
A vacuum valve is disclosed. The vacuum valve comprises a body and a cylinder, mounted at the upper end of the body having a cavity including a piston, the center of the piston provided a piston rod extended into the cavity and the two sides of the body and the bottom section of the body being air holes, characterized in that the end of the piston rod is connected with a rocking arm and a gate plate having a lug by means of a connection rod, and one side of the gate plate, positioned at the interior of the upper section of the air hole is a pivotal lug by means of a connection rod so that the valve plate is opened or closed at an arch angle at the air hole, and the exterior of the bottom section of the body is a bottom plate so that the vacuum valve is formed into a two-passages valve and is connectable to a 180 degree conduit.

REFERENCES:
patent: 4065097 (1977-12-01), Timin

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