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Title: Zero dead volume tube to surface seal

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.

Inventors:
 [1];  [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872973
Patent Number(s):
6056331
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
zero; dead; volume; tube; surface; seal; method; apparatus; connecting; creates; composed; components; ferrule; threaded; fitting; compressed; formed; device; retained; threading; provides; pressure; seals; mating; elevated; temperatures; depending; materials; developed; micro-machined; silicon; wafers; capillary; gas; chromatograph; gc; utilized; fluid; near; mating surface; dead volume; elevated temperatures; elevated temperature; silicon wafer; gas chromatograph; silicon wafers; provides pressure; zero dead; capillary gas; threaded fitting; /285/29/

Citation Formats

Benett, William J., and Folta, James A. Zero dead volume tube to surface seal. United States: N. p., 2000. Web.
Benett, William J., & Folta, James A. Zero dead volume tube to surface seal. United States.
Benett, William J., and Folta, James A. Sat . "Zero dead volume tube to surface seal". United States. https://www.osti.gov/servlets/purl/872973.
@article{osti_872973,
title = {Zero dead volume tube to surface seal},
author = {Benett, William J. and Folta, James A.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

Patent:

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