Apparatus for placing particles in a pattern onto a substrate

Details Apparatus for placing particles in a pattern onto a substrate Apparatus for placing particles in a pattern onto a substrate

2005-02-15

2005-02-15

Edwards, Laura (Department: 1734)

Coating apparatus

Projection or spray type

With mask or stencil

C118S308000

Reexamination Certificate

active

06855205

ABSTRACT:
An apparatus for placing particles onto a substrate, methods for using the apparatus to deposit particles on a substrate and substrates prepared using the apparatus are disclosed. The apparatus includes a rotary screen, a blade disposed for directing and urging the particles through the screen, and a sheet mounted in a position to receive the particles from a feeder and deliver the particles to the rotary screen substantially across the blade. The apparatus can include a frame on which a rotary screen is rotatably mounted and a feed system disposed within and extending substantially along the length of the screen for distributing the particles. The apparatus can optionally include a vacuum means, an anti-static means and/or collection pans for handling stray particles. The screen can include a series of openings in the form of a pattern, and can be used to place particles in a pattern in register with a design or pattern on a substrate as the substrate passes under the openings in the screen.

REFERENCES:
patent: 3245341 (1966-04-01), Childress et al.
patent: 4209553 (1980-06-01), Greenberg
patent: 4604966 (1986-08-01), Kohn
patent: 4675216 (1987-06-01), DuForest et al.
patent: 5419246 (1995-05-01), Bibby
patent: 5707448 (1998-01-01), Cordera et al.

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