Patent · US Expired

Method and apparatus for compression molding plastic articles

US7399174B2 · kind B2 · utility

5Cited by
79References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 8, 2004
Grant dateJul 15, 2008
Priority date
Expiry dateNov 2, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S425/809
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method and apparatus for compression molding plastic articles include a plurality of tools mounted in opposed pairs with the tools of each pair including opposed first and second actuators that define a mold cavity in which a charge of plastic is compression molded. The tooling is preferably carried by a rotary turret so that first and second actuators of each tooling pair are moveable relative to each other between an open position permitting formed articles to be removed from the tooling and to receive fresh charges of plastic, and a closed position to compression mold the charges of plastic.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.