Heating system of the type for apartments or offices in buildings
US5697551A · kind A · utility
Inventor
Key dates
| Filing date | Oct 4, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Oct 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/17
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water heating system for a number of apartments or offices 10 each having a water store 15 for receiving hot water from a common boiler 12. The system includes a temperature sensor S2 for sensing the temperature of incoming water from the boiler, with a valve V1 between the temperature sensor S2 and the water store 15. A further temperature sensor S1 senses the temperature of water within the store 15. An electronic controller 30 controls the flow of water via valves V1, V2 dependent on the temperature detected by both the first and second sensors to prevent water being received by the store when the temperature differential is too small. This avoids the risk of reduction of the water temperature within the store 15, and meter 21 will not register utilization under these circumstances as valve V2 allows the return of the water other than via store 15.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.