Electronically controlled hot water recirculation pump
US8594853B2 · kind B2 · utility
4Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
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.