A disc clamp for use within a disc drive to secure a plurality of information storage discs to a spindle hub on a disc drive spindle motor assembly. The disc clamp is secured to the spindle hub by a plurality of hub screws. The disc clamp is fabricated from a single piece of aluminum and includes a substantially...http://www.google.com/patents/US5274517?utm_source=gb-gplus-sharePatent US5274517 - Disk clamp with annular spring section
