Liquid purification or separation – With means to add treating material – Chromatography
Patent
1998-04-01
1999-08-31
Therkorn, Ernest G.
Liquid purification or separation
With means to add treating material
Chromatography
210656, 210101, 210541, B01D 1508
Patent
active
059449888
ABSTRACT:
The described Chromatography Buffers Center holds various types of buffers required in the purification of a variety of biological molecules. The unit consists of a base plate, a handle, reservoirs and lids with attached stop pins. The vertical handle, which is an extension of base plate, gives a nonslippery grip to lift and carry the unit. A short bent hook present in the handle is useful to mount the unit in a clamp that is attached to a common laboratory stand. The hook permits lateral movement of the unit even by a simple push with a finger. Base plate allows the unit sit on any flat surface of work bench, shelf or magnetic stirrer. Reservoirs attached permanently to the top of base plate hold different types of buffers in their chambers. Through drain tubes present in the rim of base plate, these buffers can be drawn to develop chromatography columns. Lid on each reservoir protects buffer from air born dust and evaporation. Each lid on its bottom edge, has a groove that allows it to sit firmly on the rim of reservoir. Several other short but deep grooves not only provide ventilation but also drain buffer and other liquids rapidly, when needed. Lid also carries a permanently fixed stop pin. By attaching the end of tubing to stop pin, the flow of buffer can be stopped, instantly. More fresh buffer can be added to reservoirs easily at any time by simply removing the lid.
REFERENCES:
patent: 4064737 (1977-12-01), Sieverin
patent: 4418040 (1983-11-01), Karamian
patent: 4889692 (1989-12-01), Holtzman
patent: 5265642 (1993-11-01), Buckminster
patent: 5275723 (1994-01-01), Greenley
patent: 5407569 (1995-04-01), Greenley
Gaffar Shaik A.
Therkorn Ernest G.
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