Marking instruments

Details Marking instruments Marking instruments

1999-09-10

2000-10-24

Douglas, Steven O.

Coating implements with material supply

Projectable and retractable tool

With movable closure or gate

401 99, 401103, B43K 712

Patent

active

061356603

ABSTRACT:
A retractable marking instrument has a seal arrangement for sealing the marking tip (3) when it is retracted within the barrel. The seal arrangement comprises a sealing element (6) shaped as a torus which rolls between the barrel (1) of the instrument and a refill unit (2) carrying the marking tip (3).

REFERENCES:
patent: 5429609 (1995-07-01), Yoon
patent: 5823697 (1998-10-01), Talbot

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