Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1985-10-04
1987-09-15
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51436, 51432, B24C 700, B24C 900
Patent
active
046930418
ABSTRACT:
An improved surface blasting apparatus for cleaning a surface to be treated by throwing abrasive against the surface at high velocity, then recovering and cleaning the abrasive for reuse. The abrasive rebounding from the treated surface is directed against a magnetic receiving member around which a quantity of the ferrous abrasive forms a protective envelope, with additional high speed abrasive striking said envelope and consequently losing kinetic energy. Means is provided for removing debris from the abrasive by entraining the debris in a flow of air through the apparatus. The debris is separated from the air stream by cyclonic rotation in a dust collector. An alternate embodiment includes a deflector plate to prevent the undesirable escape of abrasive forward of the apparatus. Another embodiment provides for a weighted roller with sharp spikes protruding radially outwardly therefrom to puncture surface coatings which are difficult to remove by normal blasting procedures. A further embodiment utilizes a belt conveyor to lift the abrasive and carry it back to an abrasive storage compartment for reuse rather than using a rebound directing device.
REFERENCES:
patent: 2160436 (1939-05-01), Jones
patent: 3300903 (1967-01-01), Kosar
patent: 3977128 (1976-08-01), Goff
patent: 4336671 (1982-06-01), Nelson
patent: 4376358 (1983-03-01), Shelton
patent: 4433511 (1984-02-01), Swain
Dickson Industries, Inc.
Laney William R.
Meislin Debra
Schmidt Frederick R.
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