Patent · US Expired

Apparatus for injection molding plastic material

US5800843A · kind A · utility

8Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 7, 1997
Grant dateSep 1, 1998
Priority date
Expiry dateFeb 7, 2017

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C2045/1768
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

An apparatus for injection molding thermoplastic material has mold halves carried by stationary and movable mold mounting plates which are mounted on a frame. A control mechanism actively applies a variable torque to one of the mold mounting plates for compensating for any bending of the frame due to the closing force applied between the mold halves.

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