Commercial hot water control system
US8505498B2 · kind B2 · utility
8Cited by
23References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86389
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A commercial hot water system includes a boiler, a storage tank, and a hot water delivery line connected between the storage tank and at least one plumbing fixture along with a cold water delivery line connection between said plumbing fixture, a cold water source and said boiler. A pump, interconnected between the hot and cold water delivery lines, enables circulation of water to the fixtures. A timer and controller provides for turning on the pump and a temperature sensor, connected to the controller, is effective in stopping the pump to prevent heated water from being circulated through the cold water line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.