US 6,981,720 B2
Tapered ceramic GC fitting and assembly
Richard P. White, Glen Mills, Pa. (US); and Alan D. Loux, Newark, Del. (US)
Assigned to Agilent Technologies, Inc., Palo Alto, Calif. (US)
Filed on Nov. 07, 2003, as Appl. No. 10/702,583.
Prior Publication US 2005/0099006 A1, May 12, 2005
Int. Cl. F16L 17/00 (2006.01)
U.S. Cl. 285—332.1 13 Claims
OG exemplary drawing
 
1. A connector assembly for creating a gas seal between chromatographic tubing comprising:
at least one set of two ferrules for receiving the tubing wherein each of the ferrules has a body with a first end, a second end, an internal bore extending the length of the body, and a tip integral with the body and protruding from the first end, wherein the tip has a flat surface through which the internal bore extends and wherein the flat surface of the tip is of a smaller area than the first end and is perpendicular to the body, and wherein the tubing is inserted into the second end; and
a clamping mechanism for mating the two or more ferrules in a tip to tip interface, wherein the clamping mechanism has a frame for securing the ferrules in alignment and a spring for applying biasing force to the second end of the ferrules such that a gas seal is created at the interface.