The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 11, 1996

Filed:

Apr. 04, 1995
Applicant:
Inventors:

Douglas W Ford, West Linn, OR (US);

Kerry Nugent, Pleasanton, CA (US);

Assignee:

Optimize Technologies, Inc., Oregon City, OR (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01L / ;
U.S. Cl.
CPC ...
422101 ; 422 69 ; 422 70 ; 422 81 ; 422103 ; 2101982 ; 210656 ; 73 6152 ; 73 6153 ;
Abstract

An integral fitting and filter assembly (10) includes a tubular body (12) having a integral proximal fitting end (14) and an integral distal fitting end (16). A central passage (18) extends from the proximal fitting end to the distal fitting end of the body. A tubular sleeve (20) is slidably received within the central passage of the body. The tubular sleeve includes a stem portion (22) and a larger diameter head portion (24). The stem portion of the sleeve is packed with a selective chemical-absorbent packing material (26), that is retained within the sleeve by first and second porous plugs (28) secured within opposite ends of the stem portion of the sleeve. The sleeve is slidably inserted into the body, and is adjustably positioned longitudinally to provide a pre-column filter that may be used to mate with differently configured mating fittings, such as high-performance liquid chromatography instrument inlet fittings.


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