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Title: Internal pipe attachment mechanism

Abstract

An attachment mechanism is described 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. 6 figures.

Inventors:
; ; ; ; ;
Issue Date:
OSTI Identifier:
6656038
Patent Number(s):
5372391
Application Number:
PPN: US 8-020925
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 22 Feb 1993
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; MAINTENANCE FACILITIES; DESIGN; MATERIALS HANDLING EQUIPMENT; PIPELINES; INSTALLATION; REPAIR; FASTENERS; SEALS; SPRINGS; EQUIPMENT; MACHINE PARTS; 420205* - Engineering- Transport & Storage Facilities- (1980-)

Citation Formats

Bast, R M, Chesnut, D A, Henning, C D, Lennon, J P, Pastrnak, J W, and Smith, J A. Internal pipe attachment mechanism. United States: N. p., 1994. Web.
Bast, R M, Chesnut, D A, Henning, C D, Lennon, J P, Pastrnak, J W, & Smith, J A. Internal pipe attachment mechanism. United States.
Bast, R M, Chesnut, D A, Henning, C D, Lennon, J P, Pastrnak, J W, and Smith, J A. Tue . "Internal pipe attachment mechanism". United States.
@article{osti_6656038,
title = {Internal pipe attachment mechanism},
author = {Bast, R M and Chesnut, D A and Henning, C D and Lennon, J P and Pastrnak, J W and Smith, J A},
abstractNote = {An attachment mechanism is described 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. 6 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {12}
}