Device for powdering printed sheets

Details Device for powdering printed sheets Device for powdering printed sheets

1999-02-17

2000-07-11

Hilten, John S.

Printing

Antismut device

Anti-offset material application

1014161, B41F 2306

Patent

active

060856548

ABSTRACT:
A device for powdering printed sheets with powder applicator devices switchable back and forth between two operating states and, in a first of the operating states thereof, serving to direct to a given destination a free stream of carrier gas carrying entrained powder, includes, in each of the powder applicator devices, a disposal line formed with an orifice region for channeling therein, in the second of the operating states, a powder gas flow formed by a respective free stream, the powder gas flow being removable by the disposal line; and a sheet-processing printing press including the powdering device, as well as a sheet-processing printing press including a device for indirectly powdering sheets.

REFERENCES:
patent: 2613603 (1952-10-01), Ireton
patent: 3053180 (1962-09-01), Doyle
patent: 5443005 (1995-08-01), Platsch
patent: 5540152 (1996-07-01), DeMoore
patent: 5713285 (1998-02-01), Reed et al.
patent: 5746131 (1998-05-01), Henn et al.
Patent Abstracts of Japan No. Hei 4-98140, date Aug. 25, 1992, Device for distributing powder.
Patent Abstracts of Japan No. Sho 64-16331, dated Jan. 26, 1989, Powder spraying device.

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