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:
Mar. 09, 2004
Filed:
May. 21, 2002
TDK Corporation, Tokyo, JP;
Abstract
A tape cartridge comprising: a housing; a single tape reel carrying a length of tape having an outer end fixed to a leader pin, which can be taken out of the cartridge through an outlet formed in the housing by a tape draw-out member of a recording-reproducing apparatus; a door member covering the outlet; and a spring member pushing the door member towards the closed position. The spring member is a torsion coil spring comprising: two coil portions; a connecting portion linking the two coil portions; a first arm portion that extends from one coil portion, forms a first angle with the connecting portion, and has an end abutting the housing; and a second arm portion that extends from the other coil portion, forms a second angle with the connecting portion pointing in opposite direction to the first angle, and has an end fixed to the door member.