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Title: Internal pipe attachment mechanism

Abstract

An attachment mechanism for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection.

Inventors:
 [1];  [2];  [1];  [1];  [1];  [1]
+ Show Inventor Affiliations
  1. Livermore, CA
  2. Pleasanton, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
869640
Patent Number(s):
5372391
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16L - PIPES
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
internal; pipe; attachment; mechanism; repairing; extending; fluid; carrying; pipes; casings; conduits; etc; utilizing; one-way; motion; spring; tempered; fingers; provide; mechanical; connection; flex; permit; insertion; desired; depth; accomplished; reversing; leverage; forces; outwardly; inner; wall; seal; generated; crushing; sealing; assembly; action; setting; mechanical connection; fluid carrying; inner wall; attachment mechanism; permit insertion; extending fluid; sealing assembly; /285/

Citation Formats

Bast, Richard M, Chesnut, Dwayne A, Henning, Carl D, Lennon, Joseph P, Pastrnak, John W, and Smith, Joseph A. Internal pipe attachment mechanism. United States: N. p., 1994. Web.
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Bast, Richard M, Chesnut, Dwayne A, Henning, Carl D, Lennon, Joseph P, Pastrnak, John W, & Smith, Joseph A. Internal pipe attachment mechanism. United States.
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Bast, Richard M, Chesnut, Dwayne A, Henning, Carl D, Lennon, Joseph P, Pastrnak, John W, and Smith, Joseph A. Sat . "Internal pipe attachment mechanism". United States. https://www.osti.gov/servlets/purl/869640.
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@article{osti_869640,
title = {Internal pipe attachment mechanism},
author = {Bast, Richard M and Chesnut, Dwayne A and Henning, Carl D and Lennon, Joseph P and Pastrnak, John W and Smith, Joseph A},
abstractNote = {An attachment mechanism for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}
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