Heat exchanger having piezoelectric fan means
Patent 4923000 Issued on May 8, 1990. Estimated Expiration Date: 
March 3, 2009. 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.
March 3, 2009. 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 ReferencesSolid state blower Control apparatus with improved structure for cooling circuit elements Piezoelectric fan Patent #: 4780062 InventorAssigneeApplicationNo. 318297 filed on 03/03/1989US Classes:165/122, Heating or cooling means and gas pump in housing165/185, HEAT TRANSMITTER257/E23.098, By flowing liquids (EPO)257/E23.099, By flowing gases, e.g., air (EPO)361/694, With air circulating means417/410.2, Having piezoelectric driven blade417/436TRANSVERSELY MOVABLE IMPELLING MEMBER (E.G., PADDLE)ExaminersPrimary: Davis, Albert W. Jr.Attorney, Agent or FirmForeign Patent References
International ClassesH01L 023/46F04B 035/04 AbstractA fluid heat exchanger for cooling an electronic component including a housing having a fluid inlet and fluid outlet. Piezoelectric means are connected to a plurality of flexible blades for pumping fluid from the inlet to the outlet. A heat conductive structure is connected to the housing base for conducting heat to the fluid. The heat conductive structure may include the flexible blades and/or fixed metal fins.Other References
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