Power sander with pad containing air-flow passages

Details Power sander with pad containing air-flow passages Power sander with pad containing air-flow passages

1986-06-23

1987-06-09

Parker, Roscoe V.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51273, B24B 2300

Patent

active

046710205

ABSTRACT:
A power driven sanding tool having a resiliently deformable backing pad to which a sheet of sandpaper is attached and by which the sandpaper is actuated to abrade a workpiece, with the pad containing internal passages through which a flow of air and abraded particles are drawn by suction from a location near the workpiece to a dust collection bag or the like, and with the pad containing an element more rigid than the deformable cushioning material of the pad and adapted to prevent deformation of the cushioning material by the force of the suction to thus avoid constriction of the air-flow passages by the force of the suction.

REFERENCES:
patent: 3815292 (1974-06-01), Hutchins
patent: 3824689 (1974-07-01), Hutchins
patent: 4052824 (1977-10-01), Hutchins
patent: 4355487 (1982-10-01), Maier et al.
National-Detroit, Inc. Brochure of Model 400 and Model 150 on p. 2--Other Models Disclosed on pp. 3 and 4, Hutchins Manufacturing Co., Catalog, H84, The Pro Finishers.
Photographs 1 and 2 Showing the Different Layers of Material Forming Some of the Hutchins Sanding Tool Pads in Separated Condition Photographs 3 and 4 Showing Prior Art Sanding Head.
Three Advertising Sheets Entitled "Double Action Sander", Double Action Sander (Dust Free Type), and Orbital Sander (Dust Free Type) Advertising Sheet of Hutchins Manufacturing Co., Model 4500 and Model 4950VA.
National-Detroit, Inc. Advertising Sheet of Model 400.

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