Head suspension assembly with piezoelectric beam micron actuator
July 3, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2208940 2735025 Lever actuator comprising a longitudinal-effect electroexpansive transducer and designed to prevent actuation from degrading the actuator Printing hammer comprising two hinge parts coupling an arm to a base member on both sides of a hinge coupling the arm to a piezoelectric actuator Carrier structure for read/write heads Piezoelectric actuator Head suspension with tracking microactuator Piezoelectric rotation driving apparatus Adaptive micro-actuated head gimbal assembly Head suspension with stacked coil microactuator for tracking axis adjustment of a read/write head InventorsAssigneeApplicationNo. 898596 filed on 07/03/2001US Classes:310/328, With mechanical energy coupling means360/313Magnetoresistive (MR) reproducing headExaminersPrimary: Budd, Mark O.Attorney, Agent or FirmForeign Patent References
International ClassH01L 041/08Foreign Application Priority Data2000-07-24 SGAbstractA micro actuator driven load beam mechanism for use in a head suspension assembly is disclosed. The mechanism includes a load beam including a proximal end portion and a distal end portion, a hinge portion connecting the proximal and distal end portions of the load beam for permitting relative movement therebetween, and a piezoelectric beam connecting the proximal and distal end portions, the piezoelectric beam being selectively energizable to effect relative movement between the proximal and distal end portions. The load beam includes a pocket for holding at least one end of the piezoelectric beam. The piezoelectric beam and the pocket may be inclined relative to a hinge plane to control the load beam twist and minimize the altitude variations of the beam tip. | |
