Pipe joints or couplings – Molded joint – Interlocked
Patent
1982-08-12
1985-09-17
Scanlan, Jr., Richard J.
Pipe joints or couplings
Molded joint
Interlocked
285 22, 285 39, 285 93, 285189, F16L 1302
Patent
active
045416567
ABSTRACT:
A metal outlet fitting intended to be welded over a side opening in a distribution pipe for water or other fluids, is constituted as a metal casting having parting lines adapted to serve the purpose of centering the fitting prior to its attachment. The fitting has a simple tubular configuration open at both ends and preferably provided with exterior lugs to accommodate a spanner wrench as a reinforcement during attachment of piping to it. One end of the fitting has a scalloped shape to fit the side wall of the distribution pipe, and the other end portion can be either internally or externally threaded, or bored to receive a branch pipe. During the welding, the normal parting lines on the exterior can be used as locators or centralizers for matching with cross lines that are scored in the distribution pipe initially to locate the pilot of the hole saw that cuts into the pipe side wall. The method of the invention includes the step of casting the fitting, with the parting lines oriented for alignment with the cross lines, either with or without additional locator lines on the fitting.
REFERENCES:
patent: 1823549 (1931-09-01), Kendall
patent: 1936805 (1933-11-01), Taylor
patent: 1966403 (1934-07-01), Durham
patent: 2463006 (1949-03-01), Vander Clute
patent: 2954604 (1960-10-01), Ramey
patent: 3516692 (1970-06-01), Albrecht
"How to Weld Pipe", brochure, 1943, The Linde Air Products Co.
Lehman H. Gibner
Lehman K. Gibner
Scanlan, Jr. Richard J.
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