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:
Oct. 19, 1999
Filed:
Jun. 09, 1997
Applicant:
Inventors:
Noriaki Kawata, Nagano, JP;
Kiyoshi Nikima, Saitama, JP;
Assignee:
Fuji Electric Co., Ltd., Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ; C04B / ; G03G / ; B25F / ;
U.S. Cl.
CPC ...
428 369 ; 428 347 ; 428 357 ; 264105 ; 264104 ; 430 62 ; 430 69 ; 492 59 ;
Abstract
Cylindrical tubular substrates for an electrophotographic conductor can be made with different lengths from an injection-molded plastic cylindrical mother tube. The length of the mother tube is sufficient for the greatest desired length. The mother tube has a slanting inner surface which facilitates removal of the tube from the molding die, and non-slanting inner end surfaces which can be stepped. The desired length is obtained by cutting the mother tube across one of the steps. The resulting non-slanting inner end surface of the substrate provides a spigot joint for tightly receiving a flange.