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:
Jan. 27, 1976
Filed:
Jun. 07, 1974
Akio Serizawa, Tokyo, JA;
Sony Corporation, Tokyo, JA;
Abstract
In a tape cassette for use with a tape recording and/or reproducing apparatus having a rotatable reel drive device and which includes a cassette casing containing at least one rotatable tape-carrying reel provided with a hollow hub defining a socket having an opening at one end of the hub for receiving the reel drive device when the latter is inserted through an aperture in the casing registered with the socket; the socket is given a stepped configuration to have a reduced-diameter portion at the end remote from the socket opening and at least one axially elongated rib projects radially inward from the surface of the socket at a relatively larger-diameter portion of the socket, and the rotatable reel drive device is provided with an end portion closely engageable in the reduced-diameter portion of the socket for accurately locating the reel in respect to the axis of rotation of the reel drive device and with at least one projection extending radially beyond and spaced axially from such end portion of the reel drive device for reception in the relatively larger-diameter portion of the socket and driving engagement with the rib therein.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile