Connection apparatus

Details Connection apparatus Connection apparatus

1992-11-30

1993-08-10

Nicholson, Eric K.

Pipe joints or couplings

Particular interface

Tapered

285342, 285353, 285357, F16L 2500, F16L 3500

Patent

active

052342352

ABSTRACT:
An improved apparatus for connecting first and second conduits, which may be capillary columns, having first and second bores, respectively, to provide communication between the first and second bores for high temperature operation over wide variations in temperature. A monolithic fused quartz seating element is removably insertable into a seating chamber of a base that may be comprised of steel or other metal. The monolithic fused quartz seating element may be cylindrical and have frustoconical surfaces defining first and second receiving formations. First and second slidable followers biased by first and second quartz springs apply pressure against first and second ferrules to seal between the first and second receiving formations, and the first and second conduits, respectively.

REFERENCES:
patent: 3992043 (1976-11-01), Whitley
patent: 4281679 (1981-08-01), Stearns
patent: 4529230 (1985-07-01), Fatula, Jr.
patent: 4669756 (1987-06-01), Cassaday et al.
patent: 4690437 (1987-09-01), Anderson, Jr.
patent: 4787656 (1988-11-01), Ryder
patent: 4991883 (1991-02-01), Worden
patent: 5163722 (1992-11-01), Worden

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