Powder feeding device

Details Powder feeding device Powder feeding device

1991-01-14

1992-03-17

Olszewski, Robert P.

Fluent material handling, with receiver or receiver coacting mea

With means to move supply means and/or receiver to, from or...

Receiver lift or lower for filling

222200, 222447, 222561, B67C 326

Patent

active

050959611

ABSTRACT:
A feeding device having a hopper for storing and feeding a material having a low flowability such as powder, fibers or a mixture thereof. Comb-shaped obstruction plates are provided at the outlet side of the hopper so as to be slidable toward and away from each other to close and open the outlet opening. The slidable obstruction plates may be replaced with a single non-slidable plate having a plurality of openings. When in a stationary state, the material is prevented from dropping due to friction between it and the obstruction plate. The hopper may have its outlet opening elongated in one direction, with the area of the outlet opening being larger than half the area of the inlet opening.

REFERENCES:
patent: 29937 (1860-09-01), Hines
patent: 241924 (1881-05-01), Buswell
patent: 1443181 (1923-01-01), Hill, Sr.
patent: 3333537 (1964-02-01), Proskauer
patent: 3722747 (1973-03-01), Petit
patent: 4066107 (1978-01-01), Karp et al.
patent: 4776493 (1988-10-01), Tegel

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