Method and apparatus for enhancing surface treatment of perforat

Details Method and apparatus for enhancing surface treatment of perforat Method and apparatus for enhancing surface treatment of perforat

1991-10-03

1994-02-08

McFarlane, Anthony

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 34, 134 42, B08B 304

Patent

active

052845249

ABSTRACT:
A method and apparatus for irrigating perforations in the surface of a perforated material during surface treatment operations. The apparatus includes a three-layer substrate of predetermined length including a first fluid-interactive layer, a second resilient layer, and a third rigidifying layer. In the method, the substrate is placed beneath the perforated surface to be treated with the perforated material overlying the first layer. Thereafter, the surface treatment tool is used to apply and remove pressure to and from the surface during performance of the surface treatment operation. In this way, as the surface is treated, fluid applied to the surface during the operation is caused to pass back and forth to and from the first layer and through the perforations to irrigate the perforations and thereby keep them from becoming clogged. In addition, the pressure applied to the surface by the tool causes fluid held by the first layer beneath the perforated surface to be expelled through the perforations in a region about the tool-surface interface, thereby flushing those perforations peripheral to the tool-surface interface.

REFERENCES:
patent: 2883310 (1959-04-01), McAuley et al.
patent: 3360400 (1967-12-01), Evans et al.
patent: 3868272 (1975-02-01), Tardoskegyi
patent: 4607947 (1986-08-01), Ensing et al.
patent: 5039349 (1991-08-01), Schoeppel
patent: 5092355 (1992-03-01), Cadwell et al.
patent: 5122195 (1992-06-01), Hoffman

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