Method of removing paint from a brick surface

Details Method of removing paint from a brick surface Method of removing paint from a brick surface

1979-08-01

1981-02-10

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Using solid work treating agents

51321, 51427, 134 38, B08B 700, B24C 100

Patent

active

042499569

ABSTRACT:
Paint is removed from brick work without destroying the dense, protective outer surface portion of the bricks by first scraping away heat-loosened paint and then lightly etching the brick surface to remove uniformly the paint residue by combined action of a high-velocity water stream and a relatively low-velocity, smaller stream of granular abrasive material directed at an angle into the water stream. The concentration of abrasive particles entrained in the water stream is varied while directing the water stream against the brick surface by moving the nozzle delivering the abrasive material stream closer to or farther from the water stream.

REFERENCES:
patent: 2040715 (1936-05-01), Smith
patent: 2583779 (1952-01-01), Jones
patent: 2669809 (1954-02-01), McGrath
patent: 2742738 (1956-04-01), Hall
patent: 2768101 (1956-10-01), Fairchild
patent: 3427763 (1969-02-01), Maasberg et al.
patent: 3791078 (1974-02-01), Fleisher
patent: 3828478 (1974-08-01), Bemis
patent: 3858358 (1975-01-01), Stachowiak et al.
patent: 3972150 (1976-08-01), Hart
patent: 3994097 (1976-11-01), Lamb
patent: 4125969 (1978-11-01), Easton

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