Insertion sleeve and stiffener for a pipe coupling

Details Insertion sleeve and stiffener for a pipe coupling Insertion sleeve and stiffener for a pipe coupling

2005-04-12

2005-04-12

Bochna, David (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S239000, C285S307000

Reexamination Certificate

active

06877777

ABSTRACT:
An insertion sleeve for a pipe coupling. The coupling includes a rigid stiffener tube in a fixed position within a shell, the stiffener tube having an external diameter less than the internal diameter of a pipe to be secured by the coupling. The insertion sleeve includes a cylindrical portion having an external diameter less than the internal diameter of the pipe, a first end of the sleeve which may be axially inserted over the stiffener tube, and a second end of the sleeve having a shoulder to abut the pipe after axial insertion of the pipe over the first end and the cylindrical portion and having a tapered opening in angular relation to the axis of the cylindrical portion.

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