Blasting apparatus

Details Blasting apparatus Blasting apparatus

1991-04-04

1992-01-28

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51320, 51321, 51410, 51436, B24C 100

Patent

active

050834029

ABSTRACT:
Conventional industrial pressure blasting apparatus is modified to allow a controlled pressure on the blast pot that is greater than the pressure on the line where less aggressive abrasive media and air are mixed for conveying the mixture to the nozzle and then to the workpiece. A media control device, with a fixed but readily variable area, is placed between the blast pot and the media/air mixing line to meter the media flow and maintain a positive pressure differential between the blast pot and the line. Adjusting the pressure differential allows control of the weight ratio of the media-to-air flow to between about 0.05 to 0.25.

REFERENCES:
patent: 2729917 (1956-09-01), Gregory
patent: 2913281 (1959-11-01), LeBlanc Jr.
patent: 3201901 (1965-08-01), Pawl
patent: 4075789 (1978-02-01), Dremann
patent: 4420957 (1983-12-01), Weber
patent: 4878320 (1989-11-01), Woodson

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