Thermoformer plug assist drive assembly

Details Thermoformer plug assist drive assembly Thermoformer plug assist drive assembly

2006-02-13

2008-07-15

Gupta, Yogendra (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Coacting shaping surfaces

C425S292000, C425S403000

Reexamination Certificate

active

07399175

ABSTRACT:
A plug assist drive assembly for driving plug assists in a thermoforming apparatus includes a single centrally located roller screw assembly enclosed in a housing and driving a third platen mounting the plug assist with a group of guide-drive bars connected to a drive platen which is driven by the roller screw nut. The roller screw assembly is removable by removing screws holding the nut to one hub adapter, the screws accessed through an opening in the housing normally covered with a plate.

REFERENCES:
patent: 4099901 (1978-07-01), Shuman
patent: 6314873 (2001-11-01), Lee et al.
patent: 6648624 (2003-11-01), Foor et al.
patent: 2006/0068048 (2006-03-01), Koda et al.

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