Patent · US Expired

Kneading and extruding machine

US5890801A · kind A · utility

2Cited by
12References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 16, 1998
Grant dateApr 6, 1999
Priority date
Expiry dateJul 16, 2018

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C48/03
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

An object of the present invention is to provide a kneading and extruding machine which includes a screw type two-shaft kneader and a gear pump in which the degree of kneading melted resin material can be made uniform at the discharging port of the screw type two-shaft kneader. In the kneading and extruding machine of the present invention, the height of scraping flights or inverse flights of the screw in the discharging section of the screw type two-shaft kneader is determined to be an average of the inner diameter of the cylinder and the bottom diameter of the groove of the screw at the most.

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