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:
Dec. 25, 1990
Filed:
Nov. 14, 1988
William O'Sullivan, Milpitas, CA (US);
Robert Freeman, Erie, CO (US);
Harold T Wright, San Carlos, CA (US);
Maxtor Corporation, San Jose, CA (US);
Abstract
A thermally independent dedicated servo disk drive where the temperature is kept within an acceptable range and temperature gradients that can cause differential thermal expansion are eliminated to minimize off tracking due to differential thermal expansion of thermally sensitive components. A novel isolated 'box within a box' architecture is utilized to provide a thermal buffer to external temperature gradients and an inner HDA support structure is coupled to an outer housing with thermally insulative isolators which prevent the conductive transfer of heat from external sources where the outer housing and isolators create a thermal buffer to shield the inner HDA support structure from external heat sources. In addition, certain heat generating components not integrated into the symmetrical thermal 'box within a box' design are isolated where possible. Thus, a thermally symmetrical environment is provided in the area of thermally sensitive components that could otherwise degrade tracking during temperature transients.