Liquid feeder for automatic culture apparatus

Details Liquid feeder for automatic culture apparatus Liquid feeder for automatic culture apparatus

1978-02-13

1979-12-18

Tanenholtz, Alvin F.

Chemistry: molecular biology and microbiology

Apparatus

Bioreactor

285192, 435287, C12K 110

Patent

active

041793390

ABSTRACT:
A liquid feeder comprises a liquid suction and delivery pump which withdraws a liquid such as a culture solution, buffer solution, enzyme solution or the like which is retained in a liquid storage container as refrigerated or at a reduced temperature and delivers it through a flexible tube for injection into a culture vessel located within an incubator. The tube is inserted into an inner pipe and is sealingly secured thereto. The inner pipe is detachably and hermetically mounted in an outer pipe which extends through and is secured to a wall forming an environment isolating layer of the incubator. An eccentric crankpin which is driven by a motor is connected through a link with another crankpin having a greater eccentricity, the latter crankpin being driven for rotation to cause a reciprocatory rotating motion of a driven shaft about its own axis through an angular extent of less than 180.degree.. The motion of the driven shaft is effective to selectively switch the discharge port of a pair of liquid supply tubes to a position over a single vessel. The motor also drives a cam which causes a vertical motion of a drive shaft which is also angularly driven by a cam groove, the drive shaft being effective to cause a three dimensional motion of the discharge port of a single liquid supply tube for injection into a pair of vessels.

REFERENCES:
patent: 3574064 (1971-04-01), Bennings et al.
patent: 3672953 (1972-06-01), Coty et al.
patent: 3772154 (1973-11-01), Isenberg et al.
patent: 3799844 (1974-03-01), Campbell et al.
patent: 3957585 (1976-05-01), Mabik

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