Hinge heating and folding method

Details Hinge heating and folding method Hinge heating and folding method

1995-02-20

1996-09-24

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Infrared radiation

264339, B29C 5304

Patent

active

055588310

ABSTRACT:
A method to locally heat a thermoplastic hinge and fold its semicylindrical members together so as to form a film cartridge. The cooled integrated hinge is locally heated in a manner whereby the semicylindrical members remain cool. When the thermoplastic hinge is ductile from the heat, the semicylindrical members are folded together.

REFERENCES:
patent: 3104846 (1963-09-01), Ringle
patent: 3128058 (1964-04-01), Ringle et al.
patent: 3222437 (1965-12-01), Schilling
patent: 3301430 (1967-01-01), Cornelius
patent: 3320225 (1967-05-01), Bradbury
patent: 4223852 (1980-09-01), Neuhold

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