Sandblasting methods and apparatus

Details Sandblasting methods and apparatus Sandblasting methods and apparatus

1980-11-05

1982-07-20

Smith, James G.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51438, 51319, 137595, 251 5, B24C 700

Patent

active

043398979

ABSTRACT:
Sandblasting apparatus and valve apparatus therefor, and methods for performing sandblasting operations, wherein an abrasive-filled pressure vessel is pressured by sandblast air when an air control valve is opened, and wherein automatic blowdown of the pressure within the pressure vessel is required when the air control valve is closed, a dual valve structure being provided in which the air control valve and blowdown control valve are combined and in which the two valves operate in tandem, one valve being open when the other is closed.

REFERENCES:
patent: 2371434 (1945-03-01), Eppler
patent: 3028878 (1962-04-01), Natho
patent: 3759483 (1973-09-01), Baxter
patent: 3793785 (1974-02-01), Austin
patent: 3834082 (1974-09-01), Gruozinski
patent: 4075789 (1978-02-01), Dremann

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