Inking system for multi-pen recorders

Details Inking system for multi-pen recorders Inking system for multi-pen recorders

1979-11-13

1981-09-22

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 49, G01D 1516

Patent

active

042913179

ABSTRACT:
An ink priming system for a multi-pen recorder of the gravity-fed capillary tube type comprises a gas manifold common to all of the ink bottles individually provided for each channel of the recorder. Individual control valves may be selectively actuated by the operator to prime each pen. When the control valve is closed, the gas pressure is bled off so that the inking system thereafter acts as a normal gravity-fed capillary tube system. A non-clogging inking system is provided by utilizing a short length of flexible thin walled tubing to supply ink to the movable recording pen. The length of this tubing is sufficiently short that evaporation of the ink solvent through the walls of the tube is accompanied by diffusion of the dye back to the ink bottle so that the concentration of dye in the ink at the end of the tube adjacent the recording pen does not exceed saturation value during prolonged periods of non-use of the recorder.

REFERENCES:
patent: 1907096 (1933-05-01), Angus
patent: 1967900 (1934-07-01), Perry et al.
patent: 2724631 (1955-11-01), Ruhland
patent: 3266048 (1966-08-01), Schweitzer
patent: 3312977 (1967-04-01), Hartley et al.
patent: 3556477 (1971-01-01), Schweitzer

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