Nozzle unit and method for using wet abrasives to clean hard sur

Details Nozzle unit and method for using wet abrasives to clean hard sur Nozzle unit and method for using wet abrasives to clean hard sur

1990-04-26

1991-02-26

Meislin, D. S.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51427, B24C 504

Patent

active

049952021

ABSTRACT:
The invention is a nozzle unit designed for use with wet abrasive materials to clean hard surfaces, such as steel structures. The nozzle unit is formed from two nozzle bodies, which are joined together. Each body has a lengthwise bore therein, with a venturi structure, and a metallic liner is fitted into each bore. Inside the nozzle unit is an annular cavity, which is connected into a source of water and a mixing chamber. The nozzle unit also has air passages therein that connect the mixing chamber with air surrounding the nozzle unit. In a wet blasting operation, an abrasive material, such as sand, is directed into the mixing chamber, where it mixes with water and air to form a wet abrasive stream. The wet stream is then discharged from the nozzle onto the structure to be cleaned.

REFERENCES:
patent: 2440334 (1948-04-01), Gerlach
patent: 2489097 (1949-11-01), Luce
patent: 2503743 (1950-04-01), Keefer
patent: 2543517 (1951-02-01), Anderson
patent: 2832346 (1958-01-01), Fisher

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