Pneumatic devices with noise dampening

Details Pneumatic devices with noise dampening Pneumatic devices with noise dampening

1981-11-25

1987-08-11

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

With counter-balancing pressure feedback to the modulating...

251 64, G05D 1600

Patent

active

046854851

ABSTRACT:
A pneumatic device having a housing defining at least two chambers with one of the chambers having a nozzle located therein, a diaphragm separating the two chambers, main pressure connected to one of the chambers, an output line connected to one of the chambers for providing an output signal having a value dependent upon the interaction between the nozzle and the diaphragm, and a dampening apparatus located within one of the chambers and touching the housing, the dampening apparatus being flexible for permitting movement of the diaphragm to control the output pressure in the output line and to dampen noise.

REFERENCES:
patent: 3072143 (1963-01-01), Fleischhacker
patent: 3169402 (1965-02-01), Baker

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