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:
Feb. 17, 1981
Filed:
Sep. 27, 1978
Applicant:
Inventors:
Akira Asari, Osaka, JP;
Tatsuhiko Noyori, Kobe, JP;
Takahisa Tabuchi, Kobe, JP;
Tetsuro Takehata, Osaka, JP;
Assignee:
Kobe Steel, Limited, Kobe, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
425461 ; 285 55 ; 4253 / ; 425567 ;
Abstract
A die stem for an extrusion press connected at its one end to a die holder including a first connecting construction such as a screw or a bayonet provided in the inner bore of the end portion of a sleeve received by the inner bore of the die stem, and a second connecting construction such as a screw or a bayonet provided at the rear end projection of the die holder, the second connecting construction being adapted to cooperate with the first connecting construction, whereby the compression stress at the connecting portion thereof due to the extrusion force is prevented from taking place.