Automatable internal endless film parting tool

Details Automatable internal endless film parting tool Automatable internal endless film parting tool

1990-07-31

1991-10-01

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

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

By means releasing article from interiorly placed shaping...

425444, B29C 4142

Patent

active

050529145

ABSTRACT:
An automatable tool can part an internal endless film from a mold. A preferred embodiment includes a lead member and a lap member having parallel axes, and rotating about an axis intermediate to their axes. The lead member may be provided with a separation tip used to initiate separation of a film from a mold. A trailer member can also be provided and all three members are inserted internal to a mold. The lead member is inserted so as to be on the outside of the film while the lap member and trailer member remain internal to the film. Upon rotation of a connection means between the lead and lap members, the film is wound up on the tool so that it may be removed from the mold.

REFERENCES:
patent: 3290724 (1966-12-01), Rondum
patent: 3947208 (1976-03-01), Broderick
patent: 3966386 (1976-06-01), Beyer-Olsen et al.
patent: 4212622 (1980-07-01), Kikuchi et al.
patent: 4795124 (1989-01-01), Nagai

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