Writing instrument with sealing cap retained in tip

Details Writing instrument with sealing cap retained in tip Writing instrument with sealing cap retained in tip

1982-07-02

1984-10-30

Bratlie, Steven A.

Coating implements with material supply

Projectable and retractable tool

With movable closure or gate

401108, 401202, 401213, 401243, B43K 900, B43K 712, B43K 802

Patent

active

044797320

ABSTRACT:
A writing instrument such as a ball point or felt tip pen is provided with a seal member selectively engageable with the writing tip, the sealing member being movable from a position plugging the pen through hole to a position allowing the front end of the writing member to freely pass through the through hole for writing.

REFERENCES:
patent: 3525573 (1970-08-01), Fend
patent: 3914059 (1975-10-01), Mitsuya
patent: 4315695 (1982-02-01), dos Santos et al.

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