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:
Apr. 11, 1989
Filed:
Jun. 25, 1987
Armin Ulber, Karlsfeld, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
For the purpose of fixing a capstan fashioned in light weight structure as a hollow cylinder having a perforated generated surface on the shaft stub of a drive motor for a magnetic tape recorder means, the shaft stub being composed of a ceramic material, the capstan has a bearing sleeve. At its end at the motor side, this bearing sleeve forms a guide ring which is narrowly toleranced with respect to the outside diameter of the shaft stub; at its opposite, outer end, it includes a threaded bore for the acceptance of a tensioning nut having an outside thread; and, in the transition region from the guide ring to the threaded bore, it has a tensing or clamping lip which wedges against the shaft stub in rotational-symmetrical fashion when the capstan is mounted on the shaft stub, deforming under the pressure of the tensioning nut.