Platen roller

Details Platen roller Platen roller

1989-10-02

1990-05-22

Eickholt, Eugene H.

Typewriting machines

Platen or platen-moving mechanism

Cylindrical platen

29129, 29132, B41J 1102, B41B 3108

Patent

active

049272802

ABSTRACT:
A platen roller comprises a solid cylindrical base body which has rotating shafts secured to both ends thereof and a hard elastic layer which is applied to the outer circumference of the solid cylindrical base body. The ratio of diameter of the solid cylindrical base body to the outside diameter of the finished platen roller including the solid cylindrical base body and the hard elastic layer is arranged to be within a range from 45 to 75%.

REFERENCES:
patent: 1133697 (1915-03-01), Barney
patent: 1256361 (1918-02-01), O'Keefe
patent: 1375629 (1921-04-01), Colgin
patent: 1963856 (1934-06-01), Lewis et al.
patent: 2053107 (1936-09-01), Pitman
patent: 2742999 (1956-04-01), Davidson
patent: 3389448 (1968-06-01), Buysch
patent: 4583272 (1986-04-01), Keller

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