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:
Jan. 07, 1997
Filed:
Dec. 07, 1993
James H Morehouse, Jamestown, CO (US);
Robert A Alt, Longmont, CO (US);
James A Dunckley, Boulder, CO (US);
David M Furay, Boulder, CO (US);
Bruce D Emo, Niwot, CO (US);
Steven B Volk, Boulder, CO (US);
Integral Peripherals, Inc., Boulder, CO (US);
Abstract
A disk drive information storage device having a pair of disks for storing information, the storage device including a clamp for mounting disks on a hub, the clamp including an annular element having a first set of fingers extending from the annular element in the first direction parallel to the central axis of the annular element, the first set of fingers providing a radial force on the inside edge of one of the disks, and the clamp including a second set of fingers extending from the annular element in a second direction parallel to the central axis of the annular element and opposite to the first direction, the fingers of the second set being for imposing a radially force on an inside edge of a second disk. In another embodiment, a disk drive information storage device with a pair of disks includes a spindle motor having a rotor which includes a disk-shaped portion having an outer diameter, and an upper surface for supporting one of the pair of disks. A second one of the pair of disks is connected to the rotor on a side of the first disk opposite the spindle motor. A clamp having an outer diameter smaller than the outer diameter of the disk-shaped portion of the rotor is connected to a cylindrical portion of the rotor between the first and second disk. An actuator is provided to support first and second read/write heads, with the actuator being movable to position the first and second read/write heads such that the first read/write head reads information from or writes information to a portion of a second surface of the first disk between the outer diameter of the disk-shaped portion of the rotor and the outside diameter of the clamp. In one embodiment, the disk drive information storage device comprises a housing having a footprint that includes a first dimension of about 35 mm. In another embodiment, at least one of the disks of the pair of disks in the disk drive information storage device has a diameter in the range of from about 33 mm to about 34 mm.