Photocopying – Contact printing – Light boxes
Patent
1990-05-21
1993-02-09
Braun, Fred L.
Photocopying
Contact printing
Light boxes
222DIG1, 355260, G03G 1508, G03G 2100
Patent
active
051856310
ABSTRACT:
An apparatus for supplying powder includes a container having sloping inner walls for containing powder, a transportation member rotatably disposed in the bottom portion of the container for transporting the powder in the predetermined direction, and a swing plate swung by the rotation of the transportation member. The upper end of the swing plate is fixed to one of the inner walls, and the bottom end is positioned in the locus of the transporation member. Another apparatus for supplying powder includes a container containing the powder and having a supply opening at the bottom to allow the powder to drop, a transportation member for transporting the powder in the container to the supply opening, and a rotation member closing the supply opening and by rotation allowing the powder to drop through the supply opening.
REFERENCES:
patent: 4360944 (1982-11-01), Iwai et al.
patent: 4422750 (1983-12-01), Kawata
patent: 4492321 (1985-01-01), Zoltner
patent: 4650097 (1987-03-01), Hagihara et al.
patent: 4803513 (1989-02-01), Nishise et al.
patent: 4937625 (1990-06-01), Kato et al.
patent: 5017966 (1991-05-01), Suga
patent: 5030998 (1991-07-01), Shibata et al.
Braun Fred L.
Mita Industrial Co. Ltd.
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