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. 25, 1994
Filed:
Jan. 22, 1992
Thomas A Tacklind, San Martin, CA (US);
Timothy Boyle, Santa Clara, CA (US);
Robert A Caldeira, Santa Cruz, CA (US);
Quantum Corporation, Milpitas, CA (US);
Abstract
A miniature fixed disk drive data storage and retrieval subsystem manifesting reduced acoustical noise during data storage and retrieval operations includes a flat, generally rectangular box-shaped base defining a substantially continuous bottom wall and a continuous peripheral sidewall ending in a continuous peripheral lip region. The base defines an interior chamber in which a mass balanced rotary actuator head positioner structure and an in-hub spindle motor assembly are positioned for rotating at least one data storage disk. A mechanical reinforcement structure is secured between an upper region of the rotary actuator structure and the base, and between an upper region of the spindle motor assembly and the base. A cover encloses the interior chamber and is secured at the continuous peripheral lip region by a mechanical isolation and sound dampening. The cover is also mechanically isolated from the mechanical reinforcement structure by a continuous airspace therebetween. With this arrangement acoustic noise otherwise emanating away from the cover is attenuated.