Electrostatic-charge-and chemical-attack-resistant printing cylinder construction
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United States of America Patent
Stats
-
Jul 15, 1986
Grant Date -
N/A
app pub date -
Dec 3, 1984
filing date -
Jan 17, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To draw off electrostatic charges which build up on rubber blanket cylinders having a coating of insulating or semiconductive material thereon, the pad or underlay (4) beneath the rubber blanket (5) has an electrically conductive layer (6), for example by sprayed-on aluminum, applied thereon. The end portion (B) of the pad is drawn into the groove (2) of the cylinder (C) in a region which does not have an insulating coating (3) thereon, so that the electrically conductive layer (6) is electrically connected with the cylinder (C) in the region (A) of the cylinder groove. The cylinder, typically of steel, is connected to ground or chassis through its holding structure, frame and gearing.
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Cited Art Landscape
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