Electronically controlled hot water recirculation pump with data logging
US9207682B2 · kind B2 · utility
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6References
10Claims
0Family size
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Key dates
| Filing date | Nov 14, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Nov 14, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24D19/1051
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water pump controlled by a microcontroller and operated to pump hot water for specific recirculation periods during a multi-day cycle. The recirculation periods are determined from hot water usage data logged by the microcontroller during a logging period occurring in the previous multi-day cycle. A preferred cycle is during a seven-day, or one-week, period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.