Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1985-05-01
1987-03-03
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51425, 51432, 51436, B24C 900
Patent
active
046464816
ABSTRACT:
A surface blasting apparatus for treating a surface with abrasive, cleaning dust and debris from abrasive rebounded from the treated surface so that the abrasive may be reused, and separating the debris from the air. Air and debris flow through abrasive rebounded from said surface and through a baffle system which prevents abrasive flow therethrough. A row of magnets is positioned adjacent the baffle system for receiving and arresting abrasive exiting an abrasive return chute. A mechanical conveying system lifts abrasive upwardly so that it falls toward an abrasive storage hopper. The abrasive falls in the form of a curtain through which air exiting the baffle system passes. The air and dust contained therein enter a prefilter in a first cleaning chamber and heavy dust falls downwardly therefrom. The air flows from the prefilter into a second cleaning chamber where it is filtered so that light dust is removed therefrom and falls downwardly. Large debris is also removed from the abrasive and discharged to the first cleaning chamber. A dust and debris auger system transfers the removed dust and debris to a common opening in the first and second cleaning chambers for removal from the apparatus.
REFERENCES:
patent: 2423287 (1947-07-01), Beisel
patent: 3934373 (1976-01-01), Lelinert et al.
patent: 4020596 (1977-05-01), Bergh
patent: 4363571 (1982-12-01), Jackson et al.
patent: 4376358 (1983-03-01), Shelton
patent: 4382352 (1983-05-01), Nelson
Dickson Industries, Inc.
Laney William R.
Meislin Debra S.
Schmidt Frederick R.
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