Pipe connections and methods for connecting pipes

Details Pipe connections and methods for connecting pipes Pipe connections and methods for connecting pipes

1997-09-19

1999-07-27

Knight, Anthony

Pipe joints or couplings

Essential catch

2853821, 2853822, 29505, F16L 2108

Patent

active

059277637

ABSTRACT:
A method for connecting a first end of a cylindrical pipe of given external diameter within a bore of a pipe element having a terminal portion with an internal diameter sufficient to receive the first end, includes outwardly deforming a part of a wall of the terminal portion of the pipe element so as to define an approximately linear open ended channel in a direction roughly tangential to the internal surface of the terminal portion. The first end of the pipe is then positioned within the terminal portion and a pin-like element is forced along the channel. This causes local inward deformation of the first end, thereby locking the first end and the pipe element together. Preferably, an additional part of the wall of the terminal portion is deformed outward to form an annular recess around the interior of the terminal portion for receiving a sealing element.

REFERENCES:
patent: 4289339 (1981-09-01), Hansen
patent: 5779283 (1998-07-01), Kimura et al.

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