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US 6,332,837 B1Granted
Device for the removal of gas and particles formed during welding and cutting jobs
OwnerVidar Wilk, Reidar V.inventors
Life of this patent
Estimating the term…
Abstract
An arrangement for removing gas, smoke, solid particles and the like in connection with welding and/or cutting consisting of two parts which can be easily latched together, namely an outer housing and an inner part. The outer housing comprises a unit for the suction of air-borne pollutants, and also a duct arranged with small opening for cooling fluid to escape for cooling both the outer housing and the inner part. A pyramidal shaped structure within the housing for assisting the reduction of the speed and energy of the spark particles formed during welding or cutting.
Claims5
An apparatus for removing gases and particles comprising
- a housing having a plurality of circumferentially disposed walls defining an open end for facing a workpiece;
- an energy reducing means in said housing for reducing the speed and energy of spark particles, said means including a first pyramid-shaped element disposed in said housing in spaced relation to said walls with a first open end facing said open end of said housing to receive a flow of material from the workpiece and a second open opposite end, and a second pyramid shaped element disposed in said housing with a closed apex end concentrically within said second open end of said first pyramid-shaped element to define a gap therebetween and to deflect the flow of material into said gap, said second pyramid shaped element being spaced from said walls of said housing;
- and
- a suction unit connected to said housing for withdrawing a flow of material from between said first pyramid shaped element and said housing walls.
1 more element
Dependencies are inferred from the claim text.