Thermostat control apparatus
US4549160A · kind A · utility
5Cited by
2References
53Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1983 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Jul 27, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/275
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Apparatus for controlling a water heater thermostat for increased efficiency in fuel usage. A mounting bracket is adapted to fit on several different common types of thermostat control boxes and to removably receive a controller housing. A motor in the housing is coupled to a slip ring engaging the thermostat knob to raise and lower the thermostat temperature setting in accordance with sensor actuated circuitry responsive to incoming and outgoing water temperature. The coupling enables the apparatus to accommodate thermostats with different size knobs and rotatable in opposite directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.