Vacuum sander

Details Vacuum sander Vacuum sander

1976-04-28

1977-12-13

Jones, Jr., James L.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51387, 51273, B25B 2500, B25B 5506

Patent

active

040621529

ABSTRACT:
A vacuum sander including a porous abrasive sheet mounted on the front surface of a backing plate. A manifold covers the rear surface of the backing plate, and the interior of the manifold communicates with the abrasive sheet through a plurality of bores in the backing plate. The manifold is maintained at reduced pressure by a partial vacuum communicating with the manifold through a tubular handle which is secured to a hollow sleeve projecting from the rear of the manifold. The sleeve extends into the manifold through an aperture and is connected to the backing plate through a universal joint so that the handle can intersect the plate at virtually any angle. An air-impervious boot fastened between the sleeve and the manifold prevents air from leaking into the manifold through the aperture. The residue produced by using the sander is collected by the vacuum in the manifold and conveyed to the vacuum source through the tubular handle.

REFERENCES:
patent: 1318881 (1919-10-01), Kelley
patent: 1800341 (1931-04-01), Davies
patent: 2711059 (1955-06-01), Ames
patent: 3722147 (1973-03-01), Brenner
patent: 3815292 (1974-06-01), Hutchins

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