The United States of America As Represented by the United States

Richard M Bast

Carl D Henning

John W Pastrnak

Joseph A Smith

Dwayne A Chesnut

Joseph P Lennon

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.

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Livermore, CA, United States of America

Richard M Bast