Automated apparatus for producing gradient gels

Details Automated apparatus for producing gradient gels Automated apparatus for producing gradient gels

1983-11-10

1986-06-10

Niebling, John F.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

425147, 425257, 425258, 204299R, B29C 3110, G01N 2728

Patent

active

045940649

ABSTRACT:
Apparatus for producing a gradient gel which serves as a standard medium for a two-dimensional analysis of proteins, the gel having a density gradient along its height formed by a variation in gel composition, with the apparatus including first and second pumping means each including a plurality of pumps on a common shaft and driven by a stepping motor capable of providing small incremental changes in pump outputs for the gel ingredients, the motors being controlled, by digital signals from a digital computer, a hollow form or cassette for receiving the gel composition, means for transferring the gel composition including a filler tube extending near the bottom of the cassette, adjustable horizontal and vertical arms for automatically removing and relocating the filler tube in the next cassette, and a digital computer programmed to automatically control the stepping motors, arm movements, and associated sensing operations involving the filling operation.

REFERENCES:
patent: 3706515 (1972-12-01), Keuerleber et al.
patent: 4035377 (1977-07-01), Detroy
patent: 4088561 (1978-05-01), Anderson
patent: 4102367 (1978-07-01), Shulman et al.
patent: 4119304 (1978-10-01), Groom
patent: 4169036 (1979-09-01), Anderson et al.

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