Importance

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Abstract

A sleeve is used in a tubing joint assembly method, usually an inner sleeve, with a tube telescoped over this inner sleeve. An outer sleeve may optionally be telescoped over the tube and the entire assembly. One of the sleeves has a lateral shoulder transverse to the axis of the sleeve and with this shoulder terminating in a sharp angled peripheral rib. The outer sleeve is inwardly compressed by two dies which have interdigitated teeth. This compresses the outer sleeve, where used, and compresses the tube at the peripheral ribs of the sleeve. The interdigitated teeth on the dies assure complete compression all the way around the periphery, between the tube and the sleeve with a lateral shoulder being formed on the tube to act against the lateral shoulder on the sleeve and thus longitudinally retain together these parts. Also, a fluid pressuretight seal is established primarily at the sharp angled peripheral rib and its junction with the facing wall of the tube. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

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First Claim