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. 24, 1998
Filed:
Apr. 19, 1996
Applicant:
Inventors:
Yasuhiko Ishida, Hiroshima, JP;
Hideki Mizuguchi, Hiroshima, JP;
Assignee:
The Japan Steel Works, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; D01D / ; B29C / ;
U.S. Cl.
CPC ...
210780 ; 210790 ; 210359 ; 210447 ; 2104331 ; 425199 ; 264169 ;
Abstract
The screen changer of the invention is structured such that a material discharge passage formed in a housing is brought into communication with the in-flow passage of a through passage formed in the housing through the upstream chambers of through passage portions respectively formed in slide bars, and the molten materials that have passed through the in-flow passage in the initial operation of the extruding machine are discharged into the above material discharge passage, thereby being able to remove the mixtures remaining in the extruding machine prior to the normal operation of the extruding machine.