Method for forming bottle closure

Details Method for forming bottle closure Method for forming bottle closure

1982-09-28

1984-11-27

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264267, B29C 508, B29D 900, B29D 3100

Patent

active

044850654

ABSTRACT:
A bottle closure is formed by: forming a frusto-conical hollow sealing member having an open lower end, of a soft synthetic-resin, and disposing such member in a molding die defining a T-shaped cavity with an upper end of the member being projected into a horizontal portion of the cavity. A molten hard synthetic-resin is injected into the cavity through the open end of the member. Such hard resin is cooled to form a closure cap having embedded therein the upper end of the member, thereby integrally mounting the sealing member with a closure cap.

REFERENCES:
patent: 34227 (1862-01-01), Ames
patent: 3224043 (1965-12-01), Lameris et al.
patent: 3508944 (1970-04-01), Henderson et al.
patent: 3540979 (1970-11-01), Hughes
patent: 3599820 (1971-08-01), Lee
patent: 3627869 (1971-12-01), Walton
patent: 3709973 (1973-01-01), Maltby
patent: 3915608 (1975-10-01), Hujik
patent: 4040670 (1971-08-01), Williams

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