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:
May. 22, 2001
Filed:
Jun. 28, 1999
Hiroshi Meguro, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disc cartridge housing a magnetic disc includes an engagement projection formed in the vicinity of a corner of one of the upper and lower cartridge halves so that the distal end of the engagement projection is engaged with the other cartridge half, an insertion hole formed in the other cartridge half so as to be passed through by the engagement projection of the one of the upper and lower cartridge halves and an abutment protuberantly formed around the engagement projection for compressing against the rim portion of the insertion hole formed in the other cartridge half. The engagement projection protruded from the insertion hole has its distal end heated and swollen out by a non-vibration type heating system to form a retainer to unify the upper and lower cartridge halves to complete a main cartridge body portion.