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. 19, 1986
Filed:
Mar. 14, 1984
Hideo Shirako, Tokyo, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A tape cassette comprising a magnetic tape, a pair of hubs about which the magnetic tape is wound, a pair of cassette halves for holding the magnetic tape and paired hubs, one liner sheet extending between one cassette half and one plane of a pair of tape rolls and another liner sheet extending between another cassette half and the opposite plane of the paired tape rolls. Each liner sheet is provided with a first projection extending along the peripheral wall of the hub insertion holes to elastically contact the hub and a tape wound about the hub, and a second group of projections which occupy a position facing that point at which the succeeding linearly traveling portion of the tape contacts the preceding wound portion of the tape, extends in the direction in which the contact portion is moved and elastically contacts the outermost portion of the tape roll. Each cassette half is provided with ribs, which occupy a position facing the first projection and second projection group, formed on the liner sheet to elastically press the first and second projections to the tape edges, thereby preventing the tape from being irregularly wound about the hubs.