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:
May. 17, 1988
Filed:
Nov. 20, 1985
Ronald F Fasano, Santa Clara County, CA (US);
Michael K Andrews, Santa Cruz County, CA (US);
Seagate Technology, Scotts Valley, CA (US);
Abstract
A disc drive is disclosed including a base that includes a first section for mounting the motor that supports and spins the discs, and a second section for mounting the actuator and the carriage which is to carry the transducers toward and away from the discs. The voice coil motor itself consists of two halves. Each half is mounted to the base using a flange located between the carriage guide rods on which the carriage will ride. This mounting flange has two attachment points: a first mounting point at the end of the flange farthest from the discs, which is fixed in all axes, and a second mounting point at the end of the flange closest to the discs, which prevents relative movement between the base and the voice coil motor in the axes perpendicular to and tangential to the discs, but allows differential expansion along the axis radial to the discs. Since each voice coil motor half is independently mounted to the base, and since each motor half has only one fixed mounting point along any one axis, the base is free to thermally expand and contract around the voice coil motor without distorting.