F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 11/02 (2006.01) F16K 31/04 (2006.01) F24F 11/047 (2006.01) F24F 13/10 (2006.01)
Patent
CA 2087643
- 12 - ABSTRACT An automatic ventilator closure which operates on the basis of a pressure differential condition within the conduit is provided with an air flow detector to ensure that the control system for the closure does not cycle. The pressure sensor and air flow detector are both in the form of vanes that are integrally connected to each other.
French David J.
Gervais Hubert
LandOfFree
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