Wall thermostat and the like
US4373664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1981 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2223/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Apparatus is provided for a wall mounted thermostat to accept and convert manually generated instructions to binary encoded electronic impulses to control ambient air conditions in the environment in which the thermostat is located. The parameters of operation include a building heating control which reduces the desired ambient temperature at night, beginning at a prescribed time and returning to a higher daytime level at a different prescribed time. The system may also adjust desired temperature depending upon humidity conditions and alter the timing of heating and air conditioning control by predicting when a desired temperature will be reached in order to avoid overshoot. The system includes a liquid crystal or light emitting diode display and communicates with a power source and with heating and air conditioning switches such as relays or contactors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.