Heat exchangers
Patent 5095973 Issued on March 17, 1992. Estimated Expiration Date: 
December 20, 2010. 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.
December 20, 2010. 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 3148511 Solar heating system Storage material for heat transfer Patent #: 4577678 InventorApplicationNo. 630832 filed on 12/20/1990US Classes:165/185, HEAT TRANSMITTER29/890.03, Heat exchanger or boiler making257/E23.099, By flowing gases, e.g., air (EPO)361/701With heat exchanger unitExaminersPrimary: Davis, Albert W. Jr.Attorney, Agent or FirmForeign Patent References
International ClassesF28F 007/00H01L 023/36 AbstractA metallic assembly transfers heat from a hot surface in contact with a heat source to specially shaped air passageways where cooling air is blown through. The air passageways in the metal assembly are arranged with a large metal surface area in contact with the cooling air for efficient heat transfer with low resistance to air flow. The passageways are formed by stacks of streamlined posts alternating with fins. The alternating layers are formed separately, stacked together, compressed, and subjected to hot dip brazing. This melts a low melting layer of cladding metal between metal layers to form the assembly into an integral assembly with efficient heat transfer between layers with reduced manufacturing costs. | |
