Apparatus for distributing powders on a support in a...

Details Apparatus for distributing powders on a support in a... Apparatus for distributing powders on a support in a...

2007-02-20

2007-02-20

Yan, Ren (Department: 2854)

Printing

Stenciling

Rotary machines

C101S123000

Reexamination Certificate

active

10529763

ABSTRACT:
An apparatus for distributing powders on a support in a predetermined pattern, includes: a belt conveyor (2) for transporting the support (3); a head for applying the powders (1), located above the conveyor (2), which head (1) includes a ring-wound closed continuous belt (4) exhibiting a plurality of perforations arranged according to a predetermined pattern, the perforations being of a size which enables passage of predetermined quantities of powders; a mechanism for controlling a supply and delivery of powders through the perforations and for keeping the continuous belt (4) clean. The head also includes a mechanism for controlling a movement of the continuous belt (4) in synchrony with a movement of the conveyor (2).

REFERENCES:
patent: 2019375 (1935-10-01), Wheelwright
patent: 3487775 (1970-01-01), Chaney et al.
patent: 3772054 (1973-11-01), Anselrode
patent: 4729305 (1988-03-01), Spencer
patent: 4753163 (1988-06-01), Blaak
patent: 6145434 (2000-11-01), Tanaka et al.
patent: 1 063 068 (2000-12-01), None
patent: 1 162 047 (2001-02-01), None

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