Scaling needle gun shroud

Details Scaling needle gun shroud Scaling needle gun shroud

1992-09-04

1993-12-07

Rosenbaum, Mark

Metal working

Scale remover or preventor

Mechanically powered operator

29 8113, B23D 7900

Patent

active

052673820

ABSTRACT:
A needle scaling device for environmentally safe removal of material such as lead paint or the like, from difficult to clean surfaces, such as bridges. The needle scaling device includes a plurality of reciprocably movable needles which strike the surface being treated, to chip away the paint. A cowling is disposed about the distal end of the device to enshroud the needles. The cowling has an annular array of bristles disposed on its distal end, to provide a flexible shroud and hence a containment plenum around the needles.

REFERENCES:
patent: 3193908 (1965-07-01), White
patent: 3343246 (1967-01-01), Kelley et al.
patent: 3880047 (1975-06-01), Dosier
patent: 4037982 (1977-10-01), Clement
patent: 4134193 (1979-03-01), Lenzin et al.
patent: 4594759 (1986-06-01), Ikeda
patent: 4940289 (1990-07-01), Trovato et al.
patent: 5010632 (1991-04-01), Gardner

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