Striking device for dot printer

Details Striking device for dot printer Striking device for dot printer

1974-02-15

1976-07-27

Coughenour, Clyde I.

Printing

Selective or progressive

Bed and platen machines

101 9328, 197 1R, B41J 128

Patent

active

039713113

ABSTRACT:
Striking device for a dot printer, comprising an electrodynamic coil connected with a striking hammer, subjected to the action of at least one magnetic field substantially perpendicular to its plane and connected to a fixed support by means of a deformable elastic suspension unit. The device is characterized in that the electrodynamic coil is formed by at least one spiral cut in a thin metal foil and in that the elastic suspension unit is formed by narrow metal strips which are coplanar with each other and with the spiral.

REFERENCES:
patent: 3036248 (1962-05-01), Nellist
patent: 3039055 (1962-06-01), Postal et al.
patent: 3279362 (1966-10-01), Helms
patent: 3386551 (1968-06-01), D'Onofrio
patent: 3804008 (1974-04-01), Hoyer

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