Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2011-07-19
2011-07-19
Heitbrink, Tim (Department: 1744)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C425S17480R, C425S17480E, C425S547000, C425S548000
Reexamination Certificate
active
07981350
ABSTRACT:
An injection-moulding device is disclosed, comprising at least first and second mould parts, defining a mould cavity, wherein at least one of the mould parts comprises heating means, for heating the mould part in the vicinity of a mould cavity surface, said heating means comprising an inductive coil having a plurality of windings and being powered by an oscillator. The mould part comprises a top member, at the mould cavity surface, and, beneath the top member, a carrier member comprising grooves for taking up said coil windings, wherein the top member resistivity is lower than 1.5*10−6Ωm, the top member relative magnetic permeability is lower than 10, the carrier member resistivity is higher than 20*10−6Ωm, and the carrier member relative magnetic permeability is higher than 50.
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Jäderberg Jan
Olin Stefan
Birch & Stewart Kolasch & Birch, LLP
Heitbrink Tim
Thermal Cyclic Technologies TCTech I Stockholm AB
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