Thermostat with efficiency display
US8528831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2009 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | May 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1902
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various functions of the programmable thermostat. The programmable thermostat also includes a temperature sensor (18), a microprocessor (19) having memory for storing a default program set of default temperature and time values and a desired program set of desired temperature and time values. The microprocessor may compare the desired program set to the default program set in order to calculate the efficiency of a HVAC system. The calculated efficiency is then displayed graphically on the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.