Liquid purification or separation – With means to add treating material – Chromatography
Reexamination Certificate
2006-09-05
2006-09-05
Therkorn, Ernest G. (Department: 1723)
Liquid purification or separation
With means to add treating material
Chromatography
C210S656000
Reexamination Certificate
active
07101477
ABSTRACT:
A column for liquid chromatography includes a chamber adapted to receive packing medium. Openings in the chamber allow fluid to pass through it. Porous plugs in the chamber retain the packing medium. A fitting has a contact surface that engages a landing area on the chamber surrounding one of the openings. Engagement of the contact surface with the landing area forms a metal to metal seal between the fitting and the chamber. A method of sealing a column for liquid chromatography is also disclosed. The method involves a chamber containing packing medium, the chamber having an opening surrounded by a landing area. The method includes providing a compression fitting having a contact surface and compressing the contact surface against the landing area to form a fluid tight seal between the compression fitting and the chamber.
REFERENCES:
patent: 4026803 (1977-05-01), Abrahams et al.
patent: 4313828 (1982-02-01), Brownlee
patent: RE31974 (1985-08-01), Brownlee
patent: 5238556 (1993-08-01), Shirkhan
patent: 5938919 (1999-08-01), Najafabadi
patent: 6095572 (2000-08-01), Ford et al.
patent: 6193286 (2001-02-01), Jones et al.
patent: 6387256 (2002-05-01), Tuvim
patent: 6527951 (2003-03-01), Tuvim
patent: 6679989 (2004-01-01), Willis et al.
patent: WO 2004/024285 (2004-03-01), None
Machamer Clyde L.
Willis Frank M.
Agilent Technologie,s Inc.
Therkorn Ernest G.
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