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Title: Internal pipe attachment mechanism

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.
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1]
  1. (Livermore, CA)
  2. (Pleasanton, CA)
Publication Date:
OSTI Identifier:
Report Number(s):
US 5372391
DOE Contract Number:
Resource Type:
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Country of Publication:
United States
internal; pipe; attachment; mechanism; attachment; mechanism; repairing; extending; fluid; carrying; pipes; casings; conduits; etc; utilizing; one-way; motion; spring; tempered; fingers; provide; mechanical; connection; attachment; mechanism; pipe; spring; tempered; fingers; flex; permit; insertion; pipe; desired; insertion; depth; mechanical; connection; accomplished; reversing; insertion; motion; mechanical; leverage; fingers; forces; outwardly; inner; wall; pipe; seal; generated; crushing; sealing; assembly; action; setting; mechanical; connection; mechanical connection; mechanical connection; mechanical connection; fluid carrying; inner wall; attachment mechanism; attachment mechanism; attachment mechanism; permit insertion; extending fluid; sealing assembly /285/