Apparatus for heat treatment of preform necks

Details Apparatus for heat treatment of preform necks Apparatus for heat treatment of preform necks

1988-08-05

1989-07-11

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

219354, 425526, 425DIG13, 432224, B29C 4968, B29C 4902

Patent

active

048466565

ABSTRACT:
An apparatus for the heat treatment of the necks 1 of performs 2 includes a rotatable mandrel 3, which is inserted in and engaged with the neck of the preform to rotate it, a fixed protective skirt 4, and a heater 5 situated at the level of the neck. A sliding weight 28 is applied to the upper end of the neck during the heat treatment.

REFERENCES:
patent: 4005969 (1977-02-01), Farrell
patent: 4117050 (1978-09-01), Appel et al.
patent: 4300880 (1981-11-01), Suzuki
patent: 4382760 (1983-05-01), Wiatt et al.
patent: 4729732 (1988-03-01), Shad
patent: 4744937 (1988-05-01), Settembrini

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