Metal foil electroformed with a master pattern, the master patte

Details Metal foil electroformed with a master pattern, the master patte Metal foil electroformed with a master pattern, the master patte

1990-02-26

1992-04-07

Zimmerman, John

Stock material or miscellaneous articles

All metal or with adjacent metals

Having variation in thickness

428606, 428687, 101422, 205 69, 205 76, B41N 1000, C25D 104, B41F 1342

Patent

active

051027445

ABSTRACT:
A metal foil made by electroforming from a master pattern with the interposition of a negative form, and serving as packing for sheet guiding cylinders and/or drums of rotary printing machines, including a substantially planar member having one flat face and an opposite face with a textured surface structure corresponding to an upper side of the master pattern, the upper side of the master patten having been roughened by a jet treatment and coated with a levelling galvano-layer in order to eliminate undercuts, the master pattern per se, and method of manufacture.

REFERENCES:
patent: 1789273 (1931-01-01), Howe
patent: 2020177 (1935-11-01), Grove
patent: 2555319 (1951-06-01), Cross
patent: 2991544 (1961-07-01), Gotsch et al.
patent: 3161130 (1964-12-01), Vogel
patent: 3398442 (1968-08-01), Palmer
patent: 3556874 (1971-01-01), McClain
patent: 3649474 (1972-03-01), Blakeslee et al.
patent: 4088544 (1978-05-01), Hutkin
patent: 4327135 (1982-04-01), Wirz et al.
patent: 4556462 (1985-12-01), Sakurai et al.
patent: 4775599 (1988-10-01), Matsuoka et al.
patent: 4797327 (1989-01-01), Honda et al.
patent: 4980241 (1990-12-01), Hoffmueller et al.

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