Printing blanket with noise attenuation

Details Printing blanket with noise attenuation Printing blanket with noise attenuation

1992-07-07

1993-06-01

Fisher, J. Reed

Printing

Rolling contact machines

Rotary

101375, B41F 2712, B41F 722

Patent

active

052150135

ABSTRACT:
A tubular printing blanket (20) has a metal sleeve (42) which is receivable over a blanket cylinder (14) in an offset printing unit (10). The sleeve (42) is expandable diametrically under the influence of pneumatic pressure directed against the inner surface (46) of the sleeve (42), and is movable telescopically over the blanket cylinder (14) when in its expanded condition. The tubular printing blanket (20) has a damping ring (120) for attenuating noise upon expansion of the sleeve (42) under the influence of the pressurized flow of air. The damping ring (120) damps vibrations of the sleeve (42) which are caused by the pressurized flow of air, and which cause noise.

REFERENCES:
patent: 650290 (1900-05-01), Wirt
patent: 4089265 (1978-05-01), White et al.
patent: 4753363 (1986-03-01), Shin
patent: 4913048 (1990-04-01), Tittgemeyer

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