Method of forming thermoplastic headed tubular containers

Details Method of forming thermoplastic headed tubular containers Method of forming thermoplastic headed tubular containers

B - Operations, Transporting

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B

18/963

B67B 5/00 (2006.01) B29C 49/00 (2006.01) B29C 51/10 (2006.01) B29C 57/00 (2006.01) B29C 65/02 (2006.01) B29C 69/02 (2006.01) B29D 22/00 (2006.01) B65D 23/00 (2006.01)

Patent

CA 1285364

Abstract of the Disclosure A method of forming a head on a thermoplastic container wherein a molten disc seals a tubular element and, while the disc is still in a moldable state, the disc is formed into a head using either a fluid pressure, a vacuum, or both. A sealing head on an internal sealing mandrel has a first shoulder thereabout which is complementary with a second shoulder about a mold cavity, which trap the periphery of the disc and the head is formed in a configuration conforming to the mold cavity fluid pressure injected through the internal sealing mandrel, through a vacuum pulled through the mold form containing the cavity, or by use of both said fluid pressure and said vacuum.

540040

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