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.

Date of Patent:
Feb. 18, 1986

Filed:

Aug. 31, 1984
Applicant:
Inventors:

Kengo Oishi, Kanagawa, JP;

Masayoshi Moriwaki, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G11B / ;
U.S. Cl.
CPC ...
242199 ; 360132 ;
Abstract

A pair of friction sheets loosely disposed between the opposite end faces of wind-up cores and the inner surfaces of a cassette casing in a magnetic tape cassette are loosely engaged with posts of rotatable guide rollers and guide pins in the cassette so that the opposite side edges of the magnetic tape may be guided by the friction sheets substantially throughout its path and the tape may be fed in a stable manner. Engaging portions of the friction sheets may have protruded portions protruded toward the inner surfaces of the casing to guide the tape with sufficient friction. When the magnetic tape cassette is put into a cassette tape recorder, the tape travels stably with respect to the magnetic head of the recorder.


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