The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 1983
Filed:
May. 04, 1982
Masashi Konno, Akashi, JP;
Osamu Ikeda, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
In an extruder of the type including an extruding cylinder with an outlet at one end thereof and an extruding screw rotatably disposed in the cylinder and circumferentially formed with a feed flight member for forwarding a plasticized material through the outlet of said cylinder for extrusion through a screen located at the fore end of the extruding cylinder, a screen/diverter changing mechanism including a retainer box fixed to the fore outlet end of the extruding cylinder and internally defining a flow passage of the plasticized material to be extruded; a slide body movable transversely in a guide bore of the retainer box across the flow passage thereof; a screen unit detachably fitted in the slide body and having a screen and a plurality of nozzles; a diverter unit detachably fitted in the slide body and having a diverting flow passage for diverting the flow of the plasticized material from the cylinder; a drive mechanism linked to the slide body for selectively positioning either the screen unit or diverter unit in the flow passage of the retainer box; and a die plate fixedly mounted on the front side of the retainer box and having a plurality of nozzles for extruding the plasticized material fed from the cylinder through the screen unit.