Blasting apparatus, components thereof and related methods for u

Details Blasting apparatus, components thereof and related methods for u Blasting apparatus, components thereof and related methods for u

1993-10-29

1995-07-18

Rachuba, Maurina T.

Abrading

Abrading process

Utilizing fluent abradant

451 60, 451 99, 451100, 451101, B24C 700

Patent

active

054336538

ABSTRACT:
A blasting apparatus, for removing coatings and contaminants on a surface by feeding a controlled volume of an abrasive medium into a compressed air stream, includes a vessel for holding the abrasive medium and an aerated-type feed valve assembly, operatively connected to the vessel, for controlling and metering an effective amount of abrasive medium into the compressed air stream, the feed valve assembly having a shaft tube having an inside diameter of at least 11/4 inches. The blasting apparatus also includes air stream hoses or manifold pipes for conveying the compressed air stream to the feed valve assembly from a source of compressed air. In addition, a blast hose is included for blasting the abrasive medium in the compressed air stream at the surface from which the coatings or contaminants are to be removed. The preferably four-wheeled blasting apparatus may also be provided with a single air pressure regulator for applying pressure equally to a pressure vessel and the air stream hose, and may employ a dump valve assembly which requires only minimal air pressure to close.

REFERENCES:
patent: 2443148 (1948-06-01), Rucki
patent: 3089285 (1963-05-01), Moore
patent: 3675374 (1972-07-01), Wilder
patent: 3768210 (1973-10-01), Johnson et al.
patent: 4976073 (1990-12-01), Klaus-Ulfert
patent: 5081799 (1992-01-01), Kirschner et al.
patent: 5083402 (1992-01-01), Kirschner et al.
patent: 5366560 (1994-11-01), Rubey, III et al.
Upgraded Utility Vac-Blaster Brochure, Vacublast International, Custom Metal Fabricators, Inc. Herinton, Kans.
Accustrip System Brochure, Schmidt Manufacturing Incorporated, Fresno, Tex., 1991.

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