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. 19, 2026
Filed:
Mar. 27, 2024
International Business Machines Corporation, Armonk, NY (US);
Mark Alfred Lantz, Adliswil, CH;
Hugo E. Rothuizen, Oberrieden, CH;
Simeon Furrer, Altdorf, CH;
Beat Eugen Weiss, Edlibach, CH;
Stella Brach, Oberrieden, CH;
Luzius Kronig, Zürich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A tape cartridge reel comprises an upper flange, a lower flange, and a hollow cylinder hub between the upper flange and the lower flange. The upper flange has an upper opening at an upper end of the hollow cylinder hub. A hollow cylinder stiffener is positioned within the hollow cylinder hub. An inner surface is formed within the hollow cylinder hub and the hollow cylinder stiffener and extends from the upper end of the hollow cylinder hub to the lower end of the hollow cylinder hub. The inner surface forms a hollow space delimited by a surface of revolution with circular cross sections of different diameters.