Blasting cabinet

Abrading – Machine – Sandblast

Patent

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Details

451 87, 451 88, 451 90, B24C 900

Patent

active

055563244

ABSTRACT:
An abrasive blast cabinet includes a housing defining a blast chamber, a blast nozzle disposed in the blast chamber and connected to a source of an abrasive blast media for directing a flow of the blast media against a surface of an article to be cleaned, an elongated chute supported in the interior of the housing and having a first open end in fluid communication with a gas supply, a rotatable second open end in the vicinity of a work place for the article and an opening placed adjacent a window in the housing so that an operator located outside the blast chamber can direct his or her line of sight through the window and second rotatable open end and observe the article in the work place. A ventilation means, such as an exhaust fan, is provided for removing from the blast chamber blast media dispersed therein and for directing filtered air through the chute and discharging same from the rotatable second open end in a direction toward a viewing zone in the vicinity of the article and at a velocity and volume sufficient to purge blast media dispersed inside the blast cabinet away from the article being cleaned so that the operator can view the article and the cleaning action. The air removed from the interior of the blast cabinet can be filtered and recycled to the chute. A control means is provided to control the amount of filtered air recycled to the chute.

REFERENCES:
patent: 2321774 (1943-06-01), Ruemelin
patent: 2576008 (1951-11-01), Gladfelter
patent: 2797530 (1957-07-01), Garver
patent: 3300902 (1967-01-01), Dockery
patent: 4958466 (1990-09-01), Howells
patent: 5177911 (1993-01-01), Ruemelin et al.

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