Apparatus and method for cleaning stone and metal surfaces

Details Apparatus and method for cleaning stone and metal surfaces Apparatus and method for cleaning stone and metal surfaces

1986-12-29

1988-01-05

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51439, B24C 108

Patent

active

047166908

ABSTRACT:
The invention relates to a method and apparatus for cleaning stone and metal surfaces by means of a cleaning jet consisting of water, a proportion of air substantially higher by volume and sharp-edged blast material particles. The jet generated in a chamber is set in a rotation such that jointly with the expansion of the air contained therein said jet comprises a relatively wide conical cross-section. This jet permits careful but thorough cleaning of stone and metal surfaces.

REFERENCES:
patent: 2532655 (1950-12-01), Backer
patent: 2605596 (1952-08-01), Uhri
patent: 3069812 (1962-12-01), Shelton
patent: 3344558 (1967-10-01), Kirkland
patent: 3427763 (1966-07-01), Maasberg
patent: 4020535 (1977-05-01), Cuneo
patent: 4449332 (1984-05-01), Griffiths
patent: 4478368 (1984-10-01), Yie
patent: 4517774 (1985-05-01), Dudding

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