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:
Jul. 08, 2003
Filed:
Jul. 31, 2001
Applicant:
Inventor:
Eiichi Kitayama, Tokyo-To, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 7/514 ; B65H 7/518 ;
U.S. Cl.
CPC ...
B65H 7/514 ; B65H 7/518 ;
Abstract
A spool structure of the invention includes a cylindrical core, which has a smooth outer surface and an inner surface. An engaging part is formed on the inner surface. A flange is connected to the core. The flange has a jaw part that can be arranged at a side end of the core, and a nail part that can engage with the engaging part of the inner surface of the core.