Aerodynamic damper for an impact printing actuator

Details Aerodynamic damper for an impact printing actuator Aerodynamic damper for an impact printing actuator

1988-08-10

1991-08-27

Lewis, Aaron J.

Printing

Selective or progressive

Bed and platen machines

4001572, B41J 942

Patent

active

050423762

ABSTRACT:
Aerodynamic damper for impact printing actuator in which a movable armature of a magnetic circuit has to resume, after actuation, with minimum rebounding and oscillations, a stable rest position defined by the contact of a flat surface of the armature with a flat surface of a stop element, consisting in a recess formed of at least one of the two flat surfaces and having peripheral side walls slanted as to the flat surface.

REFERENCES:
patent: 3504623 (1970-04-01), Staller
patent: 3941052 (1976-03-01), Dalziel
patent: 4308794 (1982-01-01), Adamoli et al.
patent: 4388861 (1983-06-01), Bohg et al.
patent: 4529326 (1985-07-01), Mattsson
patent: 4900169 (1990-02-01), Falconieri et al.

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