Recirculating fan thermostat
US7156317B1 · kind B1 · utility
49Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Dec 11, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A programmable thermostat with a heat-cool switch, a temperature value input, and a fan switch with on, auto, and recirculating positions, and a microprocessor that superimposes a fan recirculating mode or cycle on the heat-cool or off modes or cycles by determining when the heat-cool or off cycles have been off for a user selectable time period; 2 hours, for example, and if so initiating a fan cycle for a predetermined time; 12 minutes for example, to provide a more uniform room temperature by mixing hotter and cooler air and cleaner air by running more space air through the heating and cooling system filter assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.