Writing apparatus having wear resistant material

Details Writing apparatus having wear resistant material Writing apparatus having wear resistant material

1972-10-12

1976-07-20

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

Stylus feature

G01D 1506

Patent

active

039710424

ABSTRACT:
A stylus and its method of manufacture for forming an image on the recording medium of a printing apparatus having the structure of a substrate upon which a plurality of conductors are etched or printed. The writing edge of the stylus containing the pin electrodes formed by the conductors has a chip of wear resistant or hard material laminated to the substrate to prevent excessive wear of the pin electrodes. Alternately, the substrate itself is made of a wear resistant or hard material to prevent wear of the pin electrodes.

REFERENCES:
patent: 2346675 (1944-04-01), Hackenberg et al.
patent: 3267485 (1966-08-01), Howell et al.
patent: 3291276 (1966-12-01), Milne et al.
patent: 3478191 (1969-11-01), Johnson et al.
patent: 3644930 (1972-02-01), Stange et al.
patent: 3673600 (1972-06-01), Damouth et al.
patent: 3694574 (1972-09-01), Gray et al.

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