Pipe coupling
OwnerAlbert Frederick Hanseninventor
Life of this patent
Estimating the term…
Abstract
A pipe coupling comprises a body part having a hollow interior and a rotatable sleeve captively mounted to the body part of the coupling such that the end of a length of pipe connected to the coupling passes through the rotatable sleeve to the hollow interior of the coupling. The rotatable sleeve has a tapered interior of narrowing diameter towards the pipe entry end of the rotatable sleeve. A circular band is coaxially positioned inside the rotatable sleeve. In use a pipe end is pushed into the threaded sleeve to the hollow interior of the coupling, and through the circular band. Force on the pipe away from the coupling further closes the circular band about the pipe end. Preferably the circular band has a threaded interior.
Claims7
A pipe coupling comprising:
- a body part including a hollow interior for fluid flow through the coupling,
- a rotatable sleeve captively mounted to the body part in a longitudinally fixed position on the body part of the coupling such that an end of a length of pipe connected to the hollow interior of the body part of the coupling enters the coupling at a pipe entry end of the rotatable sleeve and passes through the rotatable sleeve to the hollow interior of the coupling, the rotatable sleeve having a tapered interior of narrowing diameter towards the pipe entry end of the rotatable sleeve,
- a circular band coaxially positioned inside the rotatable sleeve, through the interior of which circular band the pipe end passes and is engaged by being pushed into the rotatable sleeve to connect to the hollow interior of the body part of the coupling, and which circular band is forced to further close about the pipe end by the co-action of said tapered interior of the rotatable sleeve and pulling the pipe end longitudinally away from the coupling.
Dependencies are inferred from the claim text.