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. 18, 1995
Filed:
Apr. 08, 1993
Applicant:
Inventor:
Yuji Iwahashi, Miyagai, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
2423471 ;
Abstract
A tape cassette includes a main lid which is pivotally mounted on an open end of a cassette shell. The main lid pivotally mounts a sub lid having a cam boss portion which is positioned in a lower end of a cam groove provided at each side of the open end of the cassette shell. A portion of the cassette shell supporting the cam groove also includes a tape guide surface backed by a concave portion. A rib is provided across the concave portion to prevent the cam boss from entering thereinto during closing operation of the cassette, thus preventing jamming and assuring reliable opening and closing operation of the tape cassette.