System for supplying ink for writing instruments

Coating implements with material supply – Including means to apply material-moving force – Intercommunicable reservoirs or reservoir sections in series

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401190, 401194, 401195, B43K 500, B43K 508, B43K 518, B43K 510

Patent

active

045738190

ABSTRACT:
An ink supply system for writing instruments which operate with liquid ink or writing fluid. In order to make uniform the supply of ink or writing fluid independent of environmental influences, and to make possible a longer writing time with one filling, it is proposed to first store the writing fluid in a primary, permanently compressible, non-capillary and large-volume supply chamber. From this primary supply chamber, a small-volume, capillary secondary supply chamber, which communicates with the writing element, is supplied via an auxiliary charging valve which is controllable as a function of need for ink or writing fluid. The filling of the secondary supply chamber can be detected with a sensor, and the auxiliary charging valve can be controlled.

REFERENCES:
patent: 1428079 (1922-09-01), Clark
patent: 2222824 (1940-11-01), Rossier
patent: 2509465 (1950-05-01), Wing
patent: 2567618 (1951-09-01), Quaintance
patent: 4015269 (1977-03-01), Edo
patent: 4318626 (1982-03-01), Bok
patent: 4350458 (1982-09-01), Murahara et al.
patent: 4360280 (1982-11-01), Sekiguchi et al.

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