Electric heating – Metal heating – By arc
Reexamination Certificate
2005-04-08
2009-06-09
Kerns, Kevin P (Department: 1793)
Electric heating
Metal heating
By arc
Reexamination Certificate
active
07544914
ABSTRACT:
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.
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Hahn Loeser & Parks LLP
Kerns Kevin P
Lincoln Global Inc.
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