Exhaust extraction system for welding site

Details Exhaust extraction system for welding site Exhaust extraction system for welding site

1990-10-29

1992-02-04

Joyce, Harold

Ventilation

Workstation ventilator

Movable

454 62, F23J 1100

Patent

active

050851330

ABSTRACT:
An exhaust extraction system for use in a welding work station is provided which operates to exhaust the noxious fumes from the welding site when the welding operation is being carried out and for a limited period thereafter. A supply of an inert shielding gas is delivered under pressure to both the welding side and the damper control mechanism. In response to changes in pressure in the supply line of the inert shielding gas, the damper control mechanism is operable to close the damper when the welding machine is deactivated and to open the damper when the welding machine is activated.

REFERENCES:
patent: 3616745 (1971-11-01), Russell, Sr.

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