Tap-off hot water system for electric beverage making device
Patent 4602145 Issued on July 22, 1986. Estimated Expiration Date: 
July 23, 2004. 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.
July 23, 2004. 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 ReferencesInventorAssigneeApplicationNo. 06/633417 filed on 07/23/1984US Classes:392/496, With heat exchange fluid219/513, Comprising expansible fluid (e.g., alcohol or mercury)222/146.5, By electrical energy392/451, With immersion heating element392/467, With hot plate392/471, Combined liquid flow heater and pump unit392/481, Coiled392/488, Pipe or tube forms flow path392/498, With thermostatic control means99/281, Of heat99/300, With liquid supply or directing means99/305With supply regulatorExaminersPrimary: Bartis, A.Attorney, Agent or FirmInternational ClassesF24H 1/20 (20060101)A47J 31/56 (20060101) A47J 31/44 (20060101) A47J 31/00 (20060101) AbstractThe hot water container of a beverage making device is provided with a removable cover sealed thereto and has arranged therein an electric immersion heating element controlled by a running thermostat and a safety thermostat for heating a volume of cold water admitted into the container through an inlet tube extending through the cover and controlled by a timed inlet valve, the hot water being discharged from the container at a brewing station through a syphon tube also extending through the cover. A tap-off hot water system for providing hot water continuously at a temperature substantially the same as the brewing water is provided by a continuous helical water heating coil residing within the upper half of the container above the heating element and having a water receiving tube extending upwardly from the bottom of the coil to a fitting on the cover connected to the source of water upstream of the inlet valve and a water outlet tube extending upwardly from the top of the coil to a second fitting on the cover connected to a discharge pipe communicating with a manually operable water faucet at the exterior of the beverage-making device for selectively supplying hot water for making soup, tea, hot cocoa, etc. The hot water system is provided with check valve establishing a minimum pressure for admission of water into the coil and an adjustable speed valve for varying the discharge water pressure at the faucet.Other References
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