Pen device to prevent ink from being vaporized

Details Pen device to prevent ink from being vaporized Pen device to prevent ink from being vaporized

1989-10-10

1992-03-03

Bratlie, Steven A.

Coating implements with material supply

Projectable and retractable tool

With movable closure or gate

401108, 401109, 401116, B43K 900

Patent

active

050927019

ABSTRACT:
A writing pen having a retractible ink tube and a series of sealing disks for sealing the writing nib against vaporization or drying of ink on the nib surface when the ink tube is in its retracted position. A sliding sleeve is mounted around the ink tube to separate the ink tube from the seal assembly so as to prevent the ink from contaminating the seal assembly.

REFERENCES:
patent: 2949887 (1960-08-01), Martin et al.
patent: 2957452 (1960-10-01), Brannon
patent: 3039436 (1962-06-01), Exner
patent: 4479732 (1984-10-01), Shimizu

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