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:
Apr. 16, 1985
Filed:
Nov. 15, 1983
Applicant:
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ; B65H / ;
U.S. Cl.
CPC ...
242 718 ; 242 74 ;
Abstract
A hub of a tape cassette comprising a generally circular outer ring portion (6), an inner ring portion (8) concentric with the outer portion and a generally annular rib (10) connecting the outer and inner ring portions, wherein said annular rib is formed so that its wall thickness increases continuously from a position (A) adjacent to a gate portion (G) for injection molding towards a portion (B) most apart from the gate portion, along the circumferential direction.