Printing – Cleaning attachments
Patent
1990-03-20
1991-05-07
Burr, Edgar S.
Printing
Cleaning attachments
101423, B41F 3500, B41L 4100
Patent
active
050127390
ABSTRACT:
Washing device of a printing machine for cleaning the outer cylindrical surface of a roller or a cylinder, comprising a supply roll and a take-up roll for a cleaning cloth dampenable with washing medium, means for withdrawing the cleaning cloth from the supply roll by winding it on the take-up roll via an actuable pressure applicator so that, during a washing operation, the pressure applicator, presses the cleaning cloth against a roller or cylinder, the pressure applicator having an elastic membrane member which is sealed with respect to a spacer, and means for forming a compressed-air cushion between the membrane member and the spacer, a holding member for receiving the spacer therein in a manner like that of a sliding block, the membrane member having marginal regions thereof engaging behind guiding projections of the holding member, the spacer being biased towards the guiding projections for sealingly clamping the marginal regions of the membrane therebetween.
REFERENCES:
patent: 4344361 (1982-08-01), MacPhee et al.
patent: 4651644 (1987-03-01), Kaempfe et al.
patent: 4757763 (1988-07-01), MacPhee et al.
patent: 4876064 (1989-08-01), Hara et al.
patent: 4920880 (1990-05-01), Hara et al.
Loos Gerhard
Spiegel Nikolaus
Burr Edgar S.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Keating Joseph R.
Lerner Herbert L.
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