Dual pressure preload system for maintaining a member

Details Dual pressure preload system for maintaining a member Dual pressure preload system for maintaining a member

1990-09-11

1993-07-13

Fisher, J. Reed

Printing

Inkers

Fountains

101485, B41F 3108, B41F 3136

Patent

active

052263630

ABSTRACT:
A dual pressure preload system preloads a doctor blade assembly in intimate contact with an anilox roll. The doctor blade assembly is attached to at least one end wall of an ink chamber. The ink chamber directly applies ink to the circumferential surface of the roll. A pressure chamber is attached to the ink chamber on the side opposite the roll and maintains the doctor blade assembly adjacent the roll. A differential pressure is produced by the pressure chamber providing a consistent preload force applied to the anilox roll by the doctor blade assembly.
In one embodiment, a relatively compressible fluid, such as a gas, is compressed, which, in turn, acts on a relatively incompressible fluid, such as a liquid, the relative incompressible liquid supplying the pressure in the pressure chamber. In another embodiment, a clamp provides a biasing force, independent of the pressure chamber, for independently preloading the doctor blade assembly in intimate contact with the anilox roll, in the event of a failure of the pressure chamber.

REFERENCES:
patent: 2376519 (1945-05-01), Stacy
patent: 2429390 (1947-10-01), Case
patent: 3128207 (1964-04-01), Schmitt
patent: 3200713 (1965-08-01), Viersma et al.
patent: 3327474 (1967-06-01), Schiffer
patent: 4398463 (1983-08-01), Yessler
patent: 4463675 (1984-08-01), Ottenhues
patent: 4515078 (1985-05-01), Difflipp et al.
patent: 4587886 (1986-05-01), Masuda et al.
patent: 4716826 (1988-01-01), Gibellino et al.
patent: 4789432 (1988-12-01), Goodnow et al.
patent: 4807517 (1989-02-01), Daeschner
patent: 5003876 (1991-04-01), Harrison et al.
patent: 5010817 (1991-04-01), Grosshauser

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