Electronic cooling
Patent 4302793 Issued on November 24, 1981. Estimated Expiration Date: 
November 30, 1999. 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.
November 30, 1999. 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 3858090 High voltage power supply with internal counterbalancing mechanism Patent #: 4091439 InventorAssigneeApplicationNo. 06/099016 filed on 11/30/1979US Classes:361/699, Liquid174/15.1, With cooling or fluid feeding, circulating or distributing361/689FluidExaminersPrimary: Tolin, Gerald P.Attorney, Agent or FirmInternational ClassH05K 7/20 (20060101)AbstractElectronic components are mounted upon a chassis which slides vertically inside a tank. The components are normally cooled by circulating transformer oil around them. When inspection, maintenance or repair work is required, the bottom of the chassis is sealed to the side of the tank, an opening in the bottom of the chassis is closed and the chassis elevated by pumping the transformer oil beneath the chassis bottom.Other References
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