Extended clock thermostat
US5460327A · kind A · utility
184Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Jul 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1904
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronically controlled thermostat has an emergency power configuration which only provides long term emergency power to a real time clock. All other components of the thermostat function only for a limited period of time following a power outage. Emergency power to the other components is monitored during power outage with appropriate action being taken to assure that control information has been stored in nonvolatile memory before emergency power deteriorates to a critical level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.