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:
Mar. 20, 1990
Filed:
Apr. 28, 1988
Otto Olbrich, Taufkirchen, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A disk pack module of a manetic disk memory provides a plurality of data disks separated from one another by spacer rings and arranged on a hub that is rotatably arranged in a housing. The data disks are slipped onto the hub against a flange thereof that projects in the radial direction and is constructed to be elastically deformable and are non-positively clamped thereto with a tension plate. A tension plate is provided, as a receptacle for the tension plate, that is fixed at the end face of the hub facing away from the flange and is constructed such that it reversibly deforms given material stresses occurring as a consequence of temperature changes. As a result of a twisting deformation of the tension ring, different thermal expansions of the hub or, respectively, of the element slipped thereon, are intercepted and neutralized in collaboration with the deformation of the hub flange.