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:
Aug. 30, 2005
Filed:
May. 30, 2002
Hiroshi Fujii, Tokyo, JP;
Sunao Kushiro, Chiba, JP;
Shuichi Ota, Saitama, JP;
Takashi Ota, Miyagi, JP;
Hiroshi Fujii, Tokyo, JP;
Sunao Kushiro, Chiba, JP;
Shuichi Ota, Saitama, JP;
Takashi Ota, Miyagi, JP;
Sony Corportion, , JP;
Abstract
Each lock portion () has a front portion () including an anchoring pawl () and a back portion () extending in a direction opposite to the front portion. Therefore, when a slider () withdraws, each back portion comes into contact with the inside surface of a back wall () of a cassette shell () and each lock portion rotates in an unlocking direction. A bottom surface () defining each recess between engaging teeth () has a central portion which protrudes in a chevron shape. A corner of each protrusion has tapered surfaces (') and (″). An anchoring pawl of each lock portion has a flat surface that comes into contact with one inclined surface (′) of a chevron-shaped portion of any one of the recesses and one tapered surface (′) of a protrusion disposed behind the adjacent recess.