초록 ▼

A moveable welding station. An exhaust hood mounted atop a pair of depending legs with a welding curtain extending downwardly from the hood and defining the work area. An exhaust fan mounted to the hood pulls air upwardly from the work station through a bottom slot and then radially into a plurality

A moveable welding station. An exhaust hood mounted atop a pair of depending legs with a welding curtain extending downwardly from the hood and defining the work area. An exhaust fan mounted to the hood pulls air upwardly from the work station through a bottom slot and then radially into a plurality of cylindrical air filters. An air passage is provided from the hollow central portions of the cylinders upwardly through a pair of charcoal filters exiting into the ambient air surrounding the welding station. A second source of pressurized air is directed via air tubes into the hollow central portions of the cylindrical filters in a direction opposite of the normal air flow in sequential pulsed fashion dislodging foreign particulate matter from the cylindrical filters. A dust pan removably mounted to the hood receives the foreign particulate matter allowing for the automatic cleaning of the filter.

대표청구항 ▼

An air treatment and recycler for a single welding station within a building comprising: a frame forming a hood and configured to form a single welding station, said frame including an air passage having an entrance opening within said single welding station and an exit opening on said frame and int

An air treatment and recycler for a single welding station within a building comprising: a frame forming a hood and configured to form a single welding station, said frame including an air passage having an entrance opening within said single welding station and an exit opening on said frame and into ambient air within said building: curtain means mounted to said frame and depending therefrom surrounding said single welding station on at least two sides thereof; a motorized fan mounted to said frame operable to draw air from within said single welding station through said passage and forcing said air outwardly of said frame recirculating air between said welding station and ambient air within said building; first filter means mounted in said passage and operable to filter air moving in a normal direction therethrough; pulsing means operably associated with said filter means and operable to direct pulses of pressurized air flow in an direction opposite from said normal direction and of a magnitude greater than said air moving in said normal direction through said filter means unlodging foreign particulate matter from said filter means; and, holding means mounted to said frame and positioned to receive said foreign particulate matter from said filter means as said pulsing means unlodges same.