Engraving member

Details Engraving member Engraving member

2005-09-06

2005-09-06

Lee, Thomas D. (Department: 2624)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003320, C324S125000, C409S141000

Reexamination Certificate

active

06940621

ABSTRACT:
An engraving element of an electronic engraving machine for engraving printing forms is formed of a shaft oscillating around a longitudinal axis with small rotational angles. A drive system is provided for the shaft with a lever attached to one end of the shaft. An engraving stylus is provided for engraving the printing form, along with a restoring element for the shaft, a bearing for the shaft, and a damping mechanism for the shaft having a damping element secured to the shaft and a stationary damping chamber. The damping element comprises at least one damping disk that is designed circularly at least in regions and extends perpendicular to the shaft. The damping chamber is designed at least as a hollow-cylindrical segment around the shaft into which the damping disk projects and extends at least over the circular region of the damping disk. The damping chamber is filled with a ferro-fluidic fluid as a damping agent.

REFERENCES:
patent: 3546586 (1970-12-01), Stimson et al.
patent: 3964382 (1976-06-01), Baar et al.
patent: 4123675 (1978-10-01), Moskowitz et al.
patent: 4357633 (1982-11-01), Buechler
patent: 4451856 (1984-05-01), Buechler
patent: 4805312 (1989-02-01), Dätwyler
patent: 5816756 (1998-10-01), Flohr et al.
patent: 23 36 089 (1975-02-01), None
patent: WO 00/02728 (2000-01-01), None

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