Powder feeding apparatus

Details Powder feeding apparatus Powder feeding apparatus

1989-09-26

1991-05-14

Olszewski, Robert P.

Dispensing

Including timer

For timing dispensing period

222 77, 222199, 222236, 222410, B67D 508, G01G 1318

Patent

active

050148893

ABSTRACT:
A powder feeding apparatus comprising a holding hopper for holding a powder, a metering hopper for metering the powder from the holding hopper, a mechanism for opening and closing a discharge opening in the metering hopper, a controller for controlling the hopper opening-closing mechanism, and a trough where the powder discharged in a heap from the metering hopper is smoothed into a layer.

REFERENCES:
patent: 1135313 (1915-04-01), Moore
patent: 1796480 (1931-03-01), Schellentrager
patent: 2241509 (1941-05-01), Graves
patent: 2611465 (1952-09-01), Simon
patent: 2638248 (1953-05-01), Alvord
patent: 2696285 (1954-12-01), Zenlea
patent: 3003667 (1961-10-01), Jonsson
patent: 3498395 (1970-03-01), Henry
patent: 3985266 (1976-10-01), Wright, Jr.
patent: 4266691 (1981-05-01), Wolwowicz
patent: 4359176 (1982-11-01), Johnson
patent: 4437595 (1984-03-01), Stevens, et al.
patent: 4702674 (1987-10-01), Fontaine et al.

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