Fluent material handling – with receiver or receiver coacting mea – Drip prevention by flow reversing and/or overfill removal – By means reversing direction of flow
Patent
1985-05-02
1987-01-06
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Drip prevention by flow reversing and/or overfill removal
By means reversing direction of flow
141256, B65B 304
Patent
active
046339230
ABSTRACT:
Apparatus for filling ink cartridges which are used in printer units of cigarette making machines has a frame which can removably support an empty cartridge in register with a stationary housing having a reciprocable plunger with axial and radial bores for evacuation of ink from a chamber in the interior of the housing. The chamber receives ink from a tank by way of a feed screw which is driven by a motor. The plunger reduces the volume of the chamber when it is lifted by the nipple of an empty cartridge, and the plunger then permits ink to flow from the chamber into the cartridge. When the cartridge is filled, a piston in its interior indirectly opens a switch in the circuit of the motor so that the feed screw is arrested. When the cartridge is moved away from the housing, a spring rapidly moves the plunger to a position in which the plunger seals the chamber from the surrounding atmosphere and the volume of the chamber is increased abruptly so that any ink which is contained in the bores of the plunger is sucked back into the chamber. This prevents contamination of the housing, of the cartridge and of the surrounding area.
REFERENCES:
patent: 4230160 (1968-10-01), Buckley
Bell, Jr. Houston S.
Hauni-Werke Korber & Co. KG.
Kontler Peter K.
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