Discharge of blasting media from a treating chamber

Details Discharge of blasting media from a treating chamber Discharge of blasting media from a treating chamber

1985-02-22

1987-01-13

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

222410, 277DIG5, B24B 100

Patent

active

046354085

ABSTRACT:
In the blasting of articles with impact media, the mixture of used media and fragments of material thereby removed from said articles fall to the bottom of the thermally insulated treating chamber. A method is disclosed for discharging such mixture through an opening in the bottom of the chamber, utilizing a rotating sweeping device having a plurality of sweep arms extending outwardly from a central hub each of the arms being formed of segments to approximate the shape of an ogee curve. Heat leakage into the chamber is minimized by driving the sweeping device from below the bottom of the chamber by an enclosed shaft passed through the insulated bottom of the chamber.

REFERENCES:
patent: 2854173 (1958-09-01), Lalin
patent: 3798841 (1974-03-01), Eppler
patent: 3942771 (1976-03-01), Knutsen
patent: 4174054 (1979-11-01), Hubbard
patent: 4423830 (1984-01-01), Lents et al.

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