Air dryer apparatus for use with pneumatic operative device

Details Air dryer apparatus for use with pneumatic operative device Air dryer apparatus for use with pneumatic operative device

1987-10-15

1988-08-16

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 21, 55316, B01D 5304

Patent

active

047641894

ABSTRACT:
An air dryer apparatus for making use of exhaust air from pneumatic operative devices as purging air, wherein the outlet opening of the air dryer apparatus and the exhaust port of the pneumatic devices are put in communication with each other by way of a purging passage, and wherein there are provided a second check valve means on the way of the purging passage means in such a manner that the forward working direction thereof may be headed towards the outlet opening of the air dryer apparatus; and exhaust valve means having an exhaust valve body formed integrally with the valve body of the purge valve, and adapted to operate in such a manner that the exhaust valve body is opened when the purge valve body is in a closed position, while the exhaust valve body is closed when the purge valve body reaches a preset degree of opening, or more specifically, so that the closing operation of the exhaust valve means at the time of purging operation may be provided upon the opening of the purge valve; and wherein the second check valve means has its upstream side connected operatively to the upstream side of the exhaust valve means.

REFERENCES:
patent: 3080693 (1963-03-01), Glass et al.
patent: 3937602 (1976-02-01), Hewitt et al.
patent: 4713094 (1987-12-01), Yaragawa et al.

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