Patent · US Expired

Injection molding apparatus

US3945535A · kind A · utility

16Cited by
5References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 5, 1974
Grant dateMar 23, 1976
Priority date
Expiry dateAug 5, 1994

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C45/27
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Apparatus for feeding to a mold a plasticized synthetic material containing a foaming agent, the apparatus using a heated extruder and its associated transfer cylinder which emits the material in a thin stream by means of a nozzle.

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