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Tandem Mold For Creating Injection-Molded Parts From Synthetic Material

Patent No. EP3131729 (titled "Tandem Mold For Creating Injection-Molded Parts From Synthetic Material") was filed by Plastisud on Nov 27, 2014. The application was issued on Nov 28, 2018.

Patent Summary

A tandem injection mold for synthetic materials comprises first, second, and third portions with guide means enabling relative displacement of the first and second portions against the third. Two parting surfaces are defined: one between the first and third portions, and another between the second and third portions. The mold transitions between an open position (portions spaced) and a closed position (portions in contact). Each parting surface features at least one mechanical stop movable between an active position, which prevents full closure to maintain a predetermined spacing for compression injection, and a retracted position, allowing full closure. Stops may be implemented as jacks, screw-nut assemblies (potentially synchronized via inverted threads), movable wedges, or components within mold stacks.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
RPC SUPERFOSSep 30, 2019GUARDIAN CONSULTING IS
PETERREINS SCHLEY PATENT UND RECHTSANWALTE PARTG MBBAug 28, 2019PETERREINS SCHLEY

Dossier Documents

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  • Date

    Description

EP3131729

PLASTISUD
Application Number
EP14814972A
Filing Date
Nov 27, 2014
Status
Granted And Under Opposition
Oct 26, 2018
Publication Date
Nov 28, 2018
External Links
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