Internal pipe attachment mechanism

Patent · Tue Dec 13 00:00:00 EST 1994

OSTI ID:6656038

Bast, R M; Chesnut, D A; Henning, C D; Lennon, J P; Pastrnak, J W; Smith, J A

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.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5372391; A
• Application Number: PPN: US 8-020925
• OSTI ID: 6656038
• Resource Relation: Patent File Date: 22 Feb 1993
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
MAINTENANCE FACILITIES
DESIGN
MATERIALS HANDLING EQUIPMENT
PIPELINES
INSTALLATION
REPAIR
FASTENERS
SEALS
SPRINGS
EQUIPMENT
MACHINE PARTS
420205* - Engineering- Transport & Storage Facilities- (1980-)