Simultaneously molded threaded port and plug

Details Simultaneously molded threaded port and plug Simultaneously molded threaded port and plug

B - Operations, Transporting

29

D

18/713

B29D 1/00 (2006.01) B29C 45/00 (2006.01) B29C 45/26 (2006.01)

Patent

CA 1145519

SIMULTANEOUSLY MOLDED THREADED PORT AND PLUG Inventor: John W. Von Holdt ABSTRACT OF THE DISCLOSURE A simultaneously molded threaded port and plug may be produced by a mold which comprises a firs-t cavity for receiving molding compound to form a wall, a second cavity for receiving molding compound to form the threaded plug, and rotatable shaft means carrying external thread forming grooves and extending through the first cavity to define the threaded port. The shaft means terminates at the second cavity, with an end portion of the shaft being shaped to form a separable mechanical linkage between the end portion and the plug molded in the second cavity means. The shaft is rotated after molding to withdraw it from the molded, threaded port, and to rotate the molded, threaded plug into the threaded port for sealing thereof.

375023

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