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:
Sep. 10, 1996
Filed:
Jan. 12, 1995
Roy L Wood, Yukon, OK (US);
John D Stricklin, Oklahoma City, OK (US);
Loren D Skarky, Bethany, OK (US);
Seagate Technology, Inc., Scotts Valley, CA (US);
Abstract
A disc assembly for a disc drive has a balancing clip mounted on a shoulder formed on other portions of the assembly to balance the disc assembly. The disc assembly includes a cylindrical hub on which data storage discs, interspersed with ring shaped spacers, are mounted and the discs and rings are clamped into place on the hub between a flange formed on one end of the hub and a clamp ring that is secured about the other end of the hub by heat shrinking the clamp ring onto the hub. A circular shoulder is formed coaxially with the hub on a face that is, in turn, formed perpendicularly to the hub axis on either the clamp ring or the end of the hub adjacent the clamp ring. The balancing clip is a C-shaped lamella having a circularly arcuate inner periphery for mating with the shoulder. The outer periphery of the balancing clip is elliptically arcuate and is bilaterally symmetric with respect to the major axis of the ellipse to which the outer edge conforms. The shoulder is undercut to conform to a conical surface opening away from the face on which the shoulder is formed and portions of the inner periphery of the balancing clip are chamfered to conform to conical surfaces opening toward the sides of balancing clip at the cone angle of the shoulder.