G - Physics – 05 – D
Patent
G - Physics
05
D
341/38.5
G05D 7/06 (2006.01) F04D 27/00 (2006.01) F24F 11/02 (2006.01)
Patent
CA 2039962
An automatic ventilator closure is described which operates on the basis of an over-pressure within the conduit leading up to the ventilator outlet. Electrical interlocks control a motor to place the closure in an open or closed condition.
French David J.
Gervais Hubert
LandOfFree
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