Washing liquid cartridge for refill ink type writing instrument

Details Washing liquid cartridge for refill ink type writing instrument Washing liquid cartridge for refill ink type writing instrument

1988-09-01

1990-10-30

Bratlie, Steven A.

Coating implements with material supply

Including rupturable means or sealed-cartridge receiver

Sealed-cartridge receiver with flow-establishing means

401132, 401221, 401258, 401292, B43K 1300

Patent

active

049664808

ABSTRACT:
A washing liquid cartridge removably positionable in a writing instrument of the type having a removable ink container. The washing liquid container contains therein a washing liquid and has an engagement portion at one end removably engagable with an inner element of the writing instrument and an openable seal adjacent to the engagement portion. When the seal of the cartridge is opened and the cartridge is snugly fitted in position within the writing instrument in place of the ink container, the washing liquid in the cartridge flows and washes the ink passage within the writing instrument.

REFERENCES:
patent: 682575 (1901-09-01), Skilton
patent: 768637 (1904-08-01), Thowless
patent: 1666186 (1928-04-01), Tong
patent: 3138142 (1964-06-01), Levy
patent: 3393962 (1968-07-01), Andrews
patent: 3539268 (1970-11-01), Stebbins

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