Apparatus for molding corrugated pipe sleeve

Details Apparatus for molding corrugated pipe sleeve Apparatus for molding corrugated pipe sleeve

1987-07-06

1988-06-21

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Mold having movable core or movable pin

264266, 264513, 264516, 4253871, 425393, 425396, 425DIG218, B29C 4514, B29C 4536

Patent

active

047522089

ABSTRACT:
An apparatus for molding a sleeve on a corrugated pipe having an inner wall and fusion-bond ridges. Two clamps can close to engage several of the ridges. One to three of the ridges project into a molding space between the clamps. A core is inserted into the pipe and closes the molding space. Hot pressurized resin softens and collapses the projected ridges and fusion bonds the pipe to the sleeve portion of the molding space.

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