Scratch preventer

Details Scratch preventer Scratch preventer

1975-04-14

1977-01-25

Smith, Al Lawrence

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 5500

Patent

active

040043797

ABSTRACT:
A scratch preventer for use in preventing a sanding tool from straying onto a surface of a panel adjacent a workpiece that is being sanded includes a panel or sheet of molded elastomeric material having magnetized material included therein to permit the panel to attach magnetically to a metal panel. The scratch preventer further includes a lip having a narrow transverse dimension molded onto and extending vertically from a first surface of the preventer such that the lip may be inserted into a gap between the workpiece and an adjacent surface not intended to be sanded. The preventer also includes a bumper molded on a second surface of the panel and having a transverse dimension substantially greater than the aforementioned lip. The bumper is vertically offset from the lip such that a sanding tool will collide with the bumper if the tool strays from the workpiece toward the adjacent surface.

REFERENCES:
patent: 514863 (1894-02-01), Meredith
patent: 758372 (1904-04-01), Marsh
patent: 3210068 (1965-10-01), Shelton
patent: 3346897 (1967-10-01), Nelson
patent: 3480894 (1969-11-01), Joyce
patent: 3873954 (1975-03-01), Baermann
IBM Technical Disclosure Bulletin by F. Daniels & S. Jenkins vol. 12 No. 6 Nov. 1969, p. 743.

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