Control air exhaust for humidistat

Details Control air exhaust for humidistat Control air exhaust for humidistat

1983-11-07

1985-02-05

Tapolcai, William E.

Automatic temperature and humidity regulation

Humidity control

137 82, G05D 2200

Patent

active

044974353

ABSTRACT:
An apparatus for maintaining a relatively moist ambient gas in intimate contact with a humidity sensing element includes a control nozzle for flowing relatively dry pneumatic control gas therethrough. The nozzle is adapted to be modulated for controlling the humidity within a space. A rigid control cone is coupled to the nozzle for defining a cavity therebetween and having a fixed volume. The cone includes a pin member which is movable with respect to the cone for effecting nozzle modulation. A discharge spigot is disposed in fluid flow communication with the cavity, the spigot being arranged for exhausting the pneumatic control gas to a region remote from the humidity sensing element.

REFERENCES:
patent: 1151814 (1915-08-01), Norwood et al.
patent: 2651468 (1953-09-01), Joesting
patent: 3563458 (1971-02-01), Martin
patent: 3718280 (1973-02-01), Russell
patent: 3770195 (1973-11-01), Franz
patent: 3930612 (1976-01-01), Brakebill et al.
patent: 4323112 (1982-04-01), Nordeen

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