Method and apparatus for thermally-assisted grounding of an elec

Details Method and apparatus for thermally-assisted grounding of an elec Method and apparatus for thermally-assisted grounding of an elec

1983-06-15

1985-04-23

Moses, Richard L.

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Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3R, 355 77, 361212, 361220, G03G 1512

Patent

active

045126534

ABSTRACT:
Apparatus is disclosed for softening and displacing electrically insulative material on a portion of the surface of an electrographic imaging web by heat and pressure to effect electrical contact (e.g. grounding) with an isolated conductive layer thereof. One apparatus embodiment maintains a constant tension in the web which urges the insulative material into pressure contact with flanges on each end of a heated aluminum roller. The roller makes electrical contact with a conductive layer of the web when the softened insulative material is displaced from between the roller and the conductive layer. Means for protecting the center of the web from the heat supplied to the roller and means for preventing a buildup of insulative material on the flanges of the roller are disclosed.

REFERENCES:
patent: 2955938 (1960-10-01), Steinhilper
patent: 3533692 (1970-10-01), Blanchette et al.
patent: 3620614 (1971-11-01), Gunto
patent: 3639121 (1972-02-01), York
patent: 3738855 (1973-06-01), Gundlach
patent: 3743410 (1973-07-01), Edelman et al.
patent: 3910475 (1975-10-01), Pundsack et al.
patent: 4027967 (1977-06-01), Euler
patent: 4344698 (1982-08-01), Zeman
patent: 4402593 (1983-09-01), Bernard et al.

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