Nonwoven fiber abrasive disk

Details Nonwoven fiber abrasive disk Nonwoven fiber abrasive disk

1986-04-29

1987-12-29

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51400, 51402, B24D 1100

Patent

active

047151501

ABSTRACT:
A nonwoven fiber abrasive disk is formed with a hole in the center, from flexible fibers randomly oriented in all three dimensions. The abrasive disk has compressed regions that radiate out from the center to the perimeter, with uncompressed abrasive regions located between them. The fibers in the compressed regions are densely pressed together and hardened with bonding adhesive introduced into the gaps between those fibers, such that the disk thickness in those regions is less than that in the uncompressed abrasive regions. The abrasive regions of the disk, which are thicker than the compressed regions, protrude out to form the abrasive surface.

REFERENCES:
patent: 1988874 (1935-01-01), Malcolm
patent: 2027425 (1936-01-01), Hall
patent: 2121496 (1938-06-01), Bowen
patent: 2770928 (1956-11-01), Van Ormer
patent: 2958593 (1960-11-01), Hoover
patent: 3377151 (1968-04-01), Lanham

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