Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1978-03-22
1979-11-27
Rolla, Joseph J.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209606, 209643, 209644, 209906, 209933, 209934, 406 47, 406 50, 406197, B07C 504, B07C 5342
Patent
active
041756622
ABSTRACT:
The invention discloses a method and apparatus which allows the sorting of particles or cells in accordance with their physical and/or chemical properties such as size, DNA and/or protein content. The present invention is furthermore characterized in that the device of the invention is combined with at least one analyzer system which is sensitive to at least one of the above or other properties and which converts the well defined property into an electrical impulse and, after analysis, directs the flow of particles into the sorter where the particles are to be sorted according to their analyzed properties in such a manner that an electrolysis gas impulse can be produced between the pairs of platinum control electrodes in each side channel of the sorter by supplying a short current impulse to said pair of electrodes; clearly, the production of such a gas impulse results in a reduction of the suction effect in this channel applied by an external suction pump and a deflection of the suspension stream which accordingly flows in the middle of the entrance channel into the other side channel lying opposite to said side channel in which the gas impulse is produced. The triggering of the impulse is provided by electronic equipment attached to the analyzing part of the device.
REFERENCES:
patent: 3514217 (1970-05-01), Reiss
patent: 3560754 (1971-02-01), Kamentsky
patent: 3791517 (1974-02-01), Friedman
patent: 3826364 (1974-07-01), Bonner et al.
patent: 3827555 (1974-08-01), Kamentsky et al.
patent: 4009782 (1977-03-01), Grimshaw
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