Zero dead volume tube to surface seal

Details Zero dead volume tube to surface seal Zero dead volume tube to surface seal

1996-09-12

2000-05-02

Arola, Dave W.

Pipe joints or couplings

Packed

Wedge

285353, 285911, 2853344, 29451, F16L 2104

Patent

active

060563311

ABSTRACT:
A method and apparatus for connecting a tube to a surface that creates a dead volume seal. The apparatus is composed of three components, a body, a ferrule, and a threaded fitting. The ferrule is compressed onto a tube and a seal is formed between the tube and a device retained in the body by threading the fitting into the body which provides pressure that seals the face of the ferrule to a mating surface on the device. This seal can be used at elevated temperatures depending on the materials used. While the invention has been developed for use with micro-machined silicon wafers used in Capillary Gas Chromatograph (GC), it can be utilized anywhere for making a gas or fluid face seal to the surface of a device that has near zero dead volume.

REFERENCES:
patent: 4690437 (1987-09-01), Anderson
patent: 4787656 (1988-11-01), Ryder
patent: 5163722 (1992-11-01), Worden
patent: 5288113 (1994-02-01), Silvis et al.

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