Filter apparatus for abrasive tool

Details Filter apparatus for abrasive tool Filter apparatus for abrasive tool

1986-09-17

1987-05-19

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51270, 51273, B24B 700, B24B 900, B24B 5504, B24B 5506

Patent

active

046656561

ABSTRACT:
A bench grinder has a dust-collecting fan in a hood for the abrasive wheel. The dust-laden air passes from the hood through a conduit to a filter box mounted on the rear of the motor housing. The filter box has parallel first and second sidewalls, and the first sidewall has an inlet opening for the conduit. A pair of inclined guide plates are mounted in the filter box, including a first guide plate and a second guide plate. Each of the guide plates is a substantially solid integral member and has a lower surface provided with corrugations. An opening is formed in the first guide plate, remote from the air inlet opening and adjacent to the second sidewall of the filter box; and an opening is formed in the second guide plate, remote from the opening in the first guide plate and adjacent to the first sidewall of the filter box. The dust-laden air passes through these respective openings, and along the corrugated lower surfaces of respective the guide plates, and the dust particles fall down into the filter box.

REFERENCES:
patent: 1255230 (1918-02-01), Roese
patent: 2373330 (1945-04-01), Nutting
patent: 3651607 (1972-03-01), Lee, II
patent: 4373300 (1983-02-01), Partridge
patent: 4514936 (1985-05-01), Hurtado

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