B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 37/00 (2006.01) B23K 9/16 (2006.01)
Patent
CA 2528543
A torch for use in welding operations during which smoke and/or fumes are created has a nozzle and a handle connected to a conduit extending between the handle and the nozzle. A fume extraction duct extends from the nozzle and through the handle. An annular member surrounds the axial end of the nozzle and has a plurality of openings oriented such that fumes and ambient air are extracted in a direction substantially parallel to the longitudinal axis of the nozzle. A switch is provided to control fume extraction between a full flow rate and a partial flow rate.
Chalumeau utilisé pour la soudure engendrant des fumées et doté d'une buse et d'une poignée fixées à un conduit s'étendant entre la poignée et la buse. Un tuyau d'aspiration de fumées s'étend de la buse et à travers la poignée. Un élément annulaire entoure l'extrémité axiale de la buse et comporte une pluralité d'ouvertures orientées de manière à ce que les fumées et l'air ambiant soient aspirés dans une direction sensiblement parallèle à l'axe longitudinal de la buse. Un commutateur règle le débit d'aspiration des fumées entre un débit maximal et un débit partiel.
Gowling Lafleur Henderson Llp
Lincoln Global Inc.
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