Ink duct for tubular styluses

Details Ink duct for tubular styluses Ink duct for tubular styluses

1985-12-17

1988-03-01

Bratlie, Steven A.

Coating implements with material supply

Including stylus

401260, B43K 106, B43K 110, B43K 800

Patent

active

047282142

ABSTRACT:
The invention relates to an ink duct for tubular styluses on writing implements with a compensating system and with an air access and escape system and consists substantially of a connecting system between writing tube and ink storage tank comprising capillary gaps, grooves and plane gaps, which ensures a regulated ink flow and a pressure compensation between the storage tank internal pressure and the ambient air pressure. Consequently, even a tubular stylus with a large charge volume, in the case of a non-refillable writing implement for example, is controlled reliably by this system in the case of pressure differences and with the required vibration resistance.

REFERENCES:
patent: 1425150 (1922-08-01), Ullrich
patent: 2681041 (1954-06-01), Zodtner et al.
patent: 2770221 (1956-11-01), Tonkowich
patent: 3521969 (1970-07-01), Mutschler
patent: 3836266 (1974-09-01), Lorenz et al.
patent: 3938899 (1976-02-01), Mutschler
patent: 4160256 (1979-07-01), Dziuk
patent: 4390299 (1983-06-01), Mutschler
patent: 4461591 (1984-07-01), Mutschler
patent: 4522525 (1985-06-01), Saito et al.
patent: 4556336 (1985-12-01), Sano et al.

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