Powdery mold coating agent supply device

Details Powdery mold coating agent supply device Powdery mold coating agent supply device

2005-11-01

2005-11-01

Kaufman, Joseph A. (Department: 3754)

Dispensing

With gas agitation

C222S203000, C222S399000, C222S450000

Reexamination Certificate

active

06959843

ABSTRACT:
A powdery mold coating agent supply device includes a tank having at its lower portion a discharge port, the tank storing therein an amount of powdery mold coating agent, a supply, tube connected at its upper end portion to the discharge port and extending downwardly along a vertical line, a first open/close device provided in an upper side of the supply tube for the opening/closing thereof, and a second open/close device provided in a lower side of the supply tube for opening/closing the supply tube and placed away from the first open/close device by a predetermined distance.

REFERENCES:
patent: 1891038 (1932-12-01), Barros
patent: 2726019 (1955-12-01), Moran
patent: 4109835 (1978-08-01), Castro
patent: 4792235 (1988-12-01), Paul
patent: 5437335 (1995-08-01), Hines, Sr.
patent: 5758803 (1998-06-01), Liao et al.
patent: 5921369 (1999-07-01), Steele

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