Printing – Rolling contact machines – Rotary
Patent
1984-12-03
1986-07-15
Pieprz, William
Printing
Rolling contact machines
Rotary
101142, 1014011, 1014151, 101DIG13, 355 3P, 361221, 428909, B41F 702, B41F 128, B41F 2902
Patent
active
045999430
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.
REFERENCES:
patent: 2629324 (1953-02-01), Smith
patent: 2996646 (1961-08-01), Wilson
patent: 3235772 (1966-02-01), Gurin
patent: 4049343 (1977-09-01), Hermanson
patent: 4132826 (1979-01-01), Dessauer
patent: 4320714 (1982-03-01), Shimazaki
Chatto, Electrostatic Reducing Tape Handling Devices, IBM Technical Disclosure Bulletin, vol. 12, No. 10, Mar. 1970, p. 1625.
M.A.N. - Roland Druckmaschinen Aktiengesellschaft
Pieprz William
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