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:
Nov. 20, 2001
Filed:
Jul. 22, 1999
Frederick Mark Stefansky, Longmont, CO (US);
Rishi Kant, Boulder, CO (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A dual-stage actuation assembly for a disc drive includes a movable actuator arm and a load beam connected to the actuator arm. A pad is attached to the load beam, and a hinge extends from the pad. A microactuator cradle is attached to the pad by the hinge, and includes a slider support structure having first and second beams that are bendable in response to control signals and a gimbal attached to the slider support structure for supporting the slider between the first and second beams over a surface of a disc. A first piezoelectric element is coupled to the first beam for bending the first beam in response to control signals in a selected direction, and a second piezoelectric element is coupled to the second beam for bending the second beam in response to the control signals in the selected direction. Bending of the first and second beams causes the microactuator cradle to rotate with respect to the pad about the hinge in a plane generally parallel to the surface of the disc, thereby effecting high resolution displacement of the transducing head carried by the slider.