Injection mold for a bottle closure device

Details Injection mold for a bottle closure device Injection mold for a bottle closure device

1984-07-31

1985-09-17

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By differential gas pressure ejecting means

425438, 249 59, 249 66R, 249 66C, 249142, B29C 100, B29D 100, B29F 114

Patent

active

045417954

ABSTRACT:
A mold and a molding method are described for forming a closure device having a cap portion, a cylindrical plug portion extending therefrom, and a cylindrical collar extending substantially coextensively and coaxially with the plug portion spaced therefrom to provide an annular recess for receiving the open end of the container to be closed. The mold cavity is defined by mold segments and by a substantially cylindrical hollow outer core which extends into the mold cavity and defines the annular recess in the closure device between the collar and the plug portion. The mold segments include a gripping portion for retaining the closure device. The gripping portion retains the closure device while the outer core is extracted from the cavity. The gripping portion of the mold segments is then separated along with the remainder of the mold segments to remove the molded device.

REFERENCES:
patent: 3461488 (1969-08-01), Croyle
patent: 3706116 (1972-12-01), Drazick
patent: 3737277 (1973-06-01), Uhlig
patent: 3749538 (1973-07-01), Rudnev
patent: 3940103 (1976-02-01), Hilaire
patent: 4052137 (1977-10-01), Pietzner
patent: 4105385 (1978-08-01), Hehl
patent: 4125246 (1978-11-01), von Holdt
patent: 4155687 (1979-05-01), Grunner
patent: 4155698 (1979-05-01), Aichinger
patent: 4375948 (1983-03-01), von Holdt
patent: 4474302 (1984-10-01), Goldberg et al.

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