Patent · US Expired

Method for regulating the hardening time of a plastic mass in the mold of an injection molding machine

US3940465A · kind A · utility

15Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 17, 1973
Grant dateFeb 24, 1976
Priority date
Expiry dateDec 17, 1993

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C45/80
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method of regulating the hardening or setting time of a plastic mass in a mold of an injection molding machine, wherein during a relative movement between two mold halves in the presence of the pressure of the plastic mass the hardening time of the mass is regulated in the mold cavity as a function of the recuperation or recovery of such relative movement.

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