Dustless drywall sander

Details Dustless drywall sander Dustless drywall sander

1989-10-05

1991-04-16

Rachuba, Maurina

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51180, 51273, B24B 2300

Patent

active

050072064

ABSTRACT:
A dustless sander has a sanding body with a flat front face. Two exhaust openings open into the back face of the sanding body. Each is associated with a series of vacuum passages that radiate from the exhaust opening. Inlet openings through the front face communicate with the exhaust openings and the vacuum passages. The inlet openings communicating directly with the exhaust openings are smaller in diameter than the inlet openings communicating with the vacuum passages. The sander is equipped with a sanding pad consisting of several layers of fibreglass screen secured together by a bonding material around the edge. This is laid over the front face of the sander and is held in place by an open mesh abrasive sheet clamped to the sander. A hollow handle communicated with the exhaust openings and is connected, through a flexible hose and a rotary joint, to a vacuum source, such as shop vacuum.

REFERENCES:
patent: 3785092 (1974-01-01), Hutchins
patent: 4062152 (1977-12-01), Mehrer
patent: 4759155 (1988-07-01), Shaw
patent: 4766701 (1988-08-01), Roestenberg
patent: 4779385 (1988-10-01), Reiter

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