Apparatus that maintains compression in a tube

Details Apparatus that maintains compression in a tube Apparatus that maintains compression in a tube

1997-10-01

1999-04-13

Therkorn, Ernest G.

Liquid purification or separation

With means to add treating material

Chromatography

210656, B01D 1508

Patent

active

058939717

ABSTRACT:
A chromatographic device in which a chromatographic column pivots on a compression cylinder. Prior to pivoting, one end of the column is sealed with an end cap, the column is at least partially filled with a chromatographic medium and a piston is frictionally engaged within the column. The chromatographic column is then pivoted onto the compression cylinder, and the compression device is operated to push the piston into the column with a telescoping rod. The telescoping rod is then retracted, leaving the piston in place. The chromatographic column is then removed from the compression cylinder. A spring assembly is then inserted into column above the piston, and held in place with a torque mechanism mounted on the chromatographic column. The torque mechanism includes a bolt that can be tightened to provide a variable spring pressure against the piston. A rotating coupling is provided so that the chromatographic column and compression column can be operated in at least two different directions to facilitate the removal of the medium from the chromatographic column after use.

REFERENCES:
patent: D285290 (1986-08-01), Shalon et al.
patent: 4350595 (1982-09-01), Gunkel
patent: 4361482 (1982-11-01), Teetz et al.
patent: 4451365 (1984-05-01), Sattler
patent: 4597866 (1986-07-01), Couillard
patent: 4675105 (1987-06-01), Martin et al.
patent: 4710289 (1987-12-01), Wermuth et al.
patent: 4719011 (1988-01-01), Shalon et al.
patent: 4737292 (1988-04-01), Ritacco et al.
patent: 4769141 (1988-09-01), Couillard
patent: 4882047 (1989-11-01), Shalon
patent: 4891133 (1990-01-01), Colvin, Jr.
patent: 5137628 (1992-08-01), Hart et al.
patent: 5169522 (1992-12-01), Shalon et al.
patent: 5192433 (1993-03-01), Shalon
patent: 5213683 (1993-05-01), Mann
patent: 5423982 (1995-06-01), Jungbauer et al.
patent: 5462659 (1995-10-01), Saxena et al.
patent: 5531810 (1996-07-01), Fulleman

Affiliated with

Also associated with

Rating

Apparatus that maintains compression in a tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus that maintains compression in a tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus that maintains compression in a tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-223267