Water heater and control system therefor
US6465764B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Aug 30, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/37
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water heater having a water tight tank (10) with a cold water inlet (14) and a hot water outlet (16). First and second heating elements (24, 26) are mounted in the upper and lower portions of the tank (10). A controller is provided for energizing element (24) to heat water in the upper portion of tank (10) until the temperature of the water in the upper portion of tank (10) reaches a preset temperature, at which time, the element (24) will be de-energized. The controller is adapted to energize element (26) when element (24) is de-energized. The controller is further adapted to de-energize element (26) and at the same time energize element (24) when the temperature of the water in the lower portion of the tank reaches a preset temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.