Shuttle valve for twin tower air dryer

Details Shuttle valve for twin tower air dryer Shuttle valve for twin tower air dryer

1998-02-02

2000-01-18

Bennett, Henry

Drying and gas or vapor contact with solids

Apparatus

With automatic control

34565, 34 80, 1375137, F26B 1900

Patent

active

060148209

ABSTRACT:
A shuttle valve for a gas drying system that cleans and dries a stream of unpurified pressurized gas received from a source thereof and supplied to a pneumatic system that uses such a purified pressurized air. The valve includes a housing that connects a drying assembly to a structure that conveys the unpurified pressurized air to the drying assembly. The housing contains a choke disc provided with an orifice and a movable piston located in axial alignment with the choke disc. When the unpurified pressurized air is directed into the drying assembly for drying, the piston moves away from the choke disc to permit dry air to freely flow from the drying assembly and through the valve to the system utilizing purified pressurized air.

REFERENCES:
patent: 3592563 (1971-07-01), Glass et al.
patent: 3877904 (1975-04-01), Lowrie
patent: 4149861 (1979-04-01), Sogo et al.
patent: 4247311 (1981-01-01), Seibert et al.
patent: 4525183 (1985-06-01), Cordes et al.
patent: 4853010 (1989-08-01), Spence et al.
patent: 5604991 (1997-02-01), Castle et al.
patent: 5662727 (1997-09-01), Castle et al.
patent: 5685896 (1997-11-01), Castle et al.

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