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:
Oct. 13, 1998
Filed:
Jul. 09, 1996
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides an improvement to a clamp in a disk drive. Insertion holes are formed in the clamp, and screws are inserted into the insertion holes to fasten the clamp to the spindle. The bottom of the screw head contacts the clamp surface to apply a force to the clamp. However, the clamp does not contact the entire bottom surface of the screw head. Only a portion of the bottom surface of the screw head contacts the clamp to apply a force to the clamp. Since the force caused by tightening the screw is applied only to the area contacting the screw, the force diffuses in a non-contact area in an outer portion of the clamp. Therefore, disk distortion and deformation are decreased.