Method of and apparatus for molding spigot rings on pipe section

Details Method of and apparatus for molding spigot rings on pipe section Method of and apparatus for molding spigot rings on pipe section

1977-05-11

1979-01-16

Hoag, W.E.

Pipes and tubular conduits

Combined

With end structure

138173, 264271, 264275, 264328, 285291, 285351, 425127, 425129R, 425812, 425DIG44, B29C 100, B29C 500, B29D 2302, B29D 2308

Patent

active

041344316

ABSTRACT:
A pipe section is mounted in a horizontal position and upper and lower halves of a spigot ring mold are clamped to the spigot end. The lower mold half is provided with a port for receiving a nozzle of a hardenable liquid resin supply hose and the upper mold half is provided with vents. Resin is forced into the mold under pressure until some comes out of the vents. After the resin is hardened, the mold is removed.

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patent: 3741707 (1973-06-01), Bauman et al.
patent: 3777000 (1973-12-01), Kusenberg et al.
patent: 3863701 (1975-02-01), Niimi et al.
patent: 3888295 (1975-06-01), Schillinger

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