Marking pen writing tip

Details Marking pen writing tip Marking pen writing tip

1977-12-14

1980-04-01

Burr, Edgar S.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401216, B43K 108, B43K 712

Patent

active

041959418

ABSTRACT:
A marking pen comprises a hollow cylindrical ink reservoir and a removable writing tip. It may also include a pressure means which, upon hand actuation, applies pressure to the viscous ink within the reservoir. The writing tip (nozzle) is a hollow plastic member having an internal flange to position a spring and means to hold a hollow cylindrical metal member. The spring is held between the flange and a ball, the ball partly protruding from the orifice of the inwardly flanged valve-type seat of the metal member.

REFERENCES:
patent: 1951057 (1934-03-01), Leitch
patent: 2113695 (1938-04-01), Krannak
patent: 2122580 (1938-07-01), Morris
patent: 2644613 (1953-07-01), Pepin
patent: 2787249 (1957-04-01), Barlow et al.
patent: 2834321 (1958-05-01), Duefrene
patent: 2930062 (1960-03-01), Reimann
patent: 3000355 (1961-09-01), Rosenthal
patent: 3425779 (1969-02-01), Fisher et al.
patent: 3792932 (1974-02-01), Henriksen
patent: 3819285 (1974-06-01), Andrews et al.
patent: 3854826 (1974-12-01), Adams

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