Output pressure control apparatus

Details Output pressure control apparatus Output pressure control apparatus

1991-06-11

1992-12-29

Rivell, John

Fluid handling

With means for separating solid material from the fluid

Planar strainer normal to flow path

1371961, 13759617, 60453, 60454, F15B 100

Patent

active

051743337

ABSTRACT:
An output pressure control apparatus particularly adapted for HVAC control applications, and being of the general type which admits a higher supply pressure to a controlled output line when it is desired to increase the pressure in the output line and which bleeds pressure from the controlled output line when it is desired to reduce the pneumatic output pressure. The pressure regulating apparatus requires only a single filter means and utilizes bidirectional flow of air through the filter means during normal operation which cleans the filter means.

REFERENCES:
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patent: 3744244 (1973-07-01), Swoager
patent: 3754125 (1973-08-01), Rothstein
patent: 3948207 (1976-04-01), St. Paul
patent: 3963048 (1976-06-01), Bowman
patent: 4469594 (1984-09-01), Poetter
patent: 4684409 (1987-09-01), Lehman
patent: 4785848 (1988-11-01), Leiber
patent: 4882526 (1989-11-01), Iino et al.

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