Controller for animal enclosure ventilation system

Details Controller for animal enclosure ventilation system Controller for animal enclosure ventilation system

1995-10-16

1997-10-14

Joyce, Harold

Ventilation

Having both inlet and outlet airways

Pressure regulation

119448, 137904, 454253, 454255, F24F 1102

Patent

active

056765967

ABSTRACT:
A control device for operating drive motors of closure devices that is reponsive to air pressure differential inside and outside an enclosure and including a housing that will extend through a wall of the enclosure, vanes in the housing and adjustably weighted linkage interconnecting the vanes outside the housing and, depending upon the position of the linkage, operating sealed switches to actuate the drive motors.

REFERENCES:
patent: 496784 (1893-05-01), Hyzer
patent: 1907928 (1933-05-01), Zaloudek
patent: 3601030 (1971-08-01), Bryant

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