Vacuum tubing valve

Details Vacuum tubing valve Vacuum tubing valve

1994-11-30

1996-01-02

Fox, John C.

Valves and valve actuation

Rotary valves

Plug

251304, F16K 504

Patent

active

054801249

ABSTRACT:
A vacuum tubing valve including a first receiver tube shoulder including a tubular aperture extending along a longitudinal axis for receiving a first tubular hose. Connecting the shoulder is a stator unit including a C-shaped cavity with an opening about the side opposite the curved C-shaped wall and two apertures within the C-shaped wall and in axial alignment along the longitudinal axis. A 10 second receiver tube shoulder and tubular aperture extend along the longitudinal axis joining the stator about the second aperture. The stator includes a C-shaped rotor positioned and rotatable within the cavity, and having an elongated channel extending end-to-end. The channel is in alignment along the longitudinal axis with the first and second apertures when the rotor is in a first position, and the channel is off-set from the longitudinal axis when the rotor is in a second position. The rotor includes a frontal wall protruding from the opening to the cavity such that the rotational position of the rotor within the cavity is controllable by pressure applied to the frontal wall.

REFERENCES:
patent: 2189502 (1940-02-01), Johnston

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