F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/11 (2006.01) D21F 5/02 (2006.01) D21G 1/02 (2006.01) F26B 13/18 (2006.01) F28D 15/02 (2006.01) F28F 5/02 (2006.01)
Patent
CA 2361694
A roller (10) incorporating a heat pipe cavity (12) has a port (25) through which a medium (29) is flowed and a vacuum is drawn. The port (25) is sealed by a plug (20) which is lodged in a hole (14) by advance of a screw (16) against the plug (20) to form a metal-to-metal seal that will withstand pressures in the heat pipe cavity (12). A body of grease (21) is one of several ways disclosed for centering the plug (20) in the hole (14). The screw (20) can be advanced with a conventional Allen wrench or a special tool (35) having a driver head (22) on a shaft (23) that extends through a casing (24) for conveying medium or drawing a vacuum. The screw (16) has vents (28) to allow a vacuum to be drawn as the port (25) is sealed. A method of sealing is also disclosed.
L'invention porte sur un rouleau (10) à tube (12) chauffant comportant un orifice (25) de passage d'un fluide ou d'aspiration s'obturant au moyen d'un un bouchon (20) poussé dans un logement (16) par une vis (14) de manière à former un joint étanche métal sur métal résistant aux pressions régnant à l'intérieur du tube (12) chauffant. On peut utiliser, parmi d'autres moyens, une masse de graisse pour centrer le bouchon (20) dans son logement.(14). L'avance de la vis peut s'effectuer à l'aide d'une clef Allen classique ou d'un outil spécial (35) comportant un embout monté sur une tige traversant la cavité servant au passage d'un fluide ou à l'aspiration. La vis est munie d'évents (28) d'aspiration servant lorsque l'orifice (25) est obturé. L'invention porte également sur un procédé d'obturation.
American Roller Company
Goudreau Gage Dubuc
LandOfFree
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