Dust cover

Details Dust cover Dust cover

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 37/60 (2006.01) F16L 55/00 (2006.01)

Patent

CA 2375518

An outlet dust cover (10), for attachment to a back plate (12) having a wall plate (34) formed to include an aperture within which a valve (28) controlling gas flow in a pipe (30) is received is disclosed. The dust cover includes a plate (18), a valve actuator (20) located in the plate (18) and arranged to be positioned adjacent the valve (28) when the plate (18) is positioned adjacent the wall plate (34), and a vent (27) extending through the cover (10) and positioned to be in communication with the pipe (30). The valve actuator (20) assumes a first state in which the valve (28) is not actuated and a second state wherein the valve (28) is actuated.

L'invention concerne un couvercle antipoussière (10) pour orifice de sortie, qui se fixe à une plaque arrière (12) présentant une plaque paroi (34); cette dernière est formée de manière à comporter une ouverture dans laquelle est reçue une soupape (28) réglant le flux de gaz dans un tuyau (30). Le couvercle antipoussière comprend une plaque (18), un actionneur (20) de soupape situé dans la plaque (18) et placé de manière adjacente à la soupape (28) quand la plaque (18) est adjacente à la plaque paroi (34), et un évent (27) s'étendant à travers le couvercle (10) et placé de façon à communiquer avec le tuyau (30). L'actionneur (20) de soupape peut adopter un premier état dans lequel la soupape (28) n'est pas actionnée, et un deuxième état dans lequel la soupape (28) est actionnée.

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