Continuously-operable abrasive blasting apparatus

Details Continuously-operable abrasive blasting apparatus Continuously-operable abrasive blasting apparatus

1990-03-23

1991-10-15

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51424, B24C 700, B24C 900

Patent

active

050562754

ABSTRACT:
A hydraulic blasting apparatus has an abrasive storage tank disposed operatively between an abrasive recovery tank and a hydraulic pressurized tank. The abrasive storage tank is provided with a first valve openable from the inside of the storage tank to the atmospheric pressure, and also with a second valve to open the connection between the storage tank and the recovery tank and with a third valve to open the connection between the storage tank and the pressurized tank. The pressure in the abrasive storage tank will become the same as the atmospheric pressure by opening the first valve. Next the first and second valve are closed, and after that the third valve is opened so as to drop the abrasive only into the pressurized abrasive tank for a recycle use.

REFERENCES:
patent: 699405 (1902-05-01), Newhouse
patent: 1605732 (1926-11-01), Hoevel
patent: 2597434 (1952-05-01), Bishop
patent: 2810991 (1957-10-01), Mead

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