Dual energy saver for air conditioning
US5676196A · kind A · utility
8Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Jul 14, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/39
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An attachment unit (28) to an existing central air conditioning thermostat controller (24) like the ones found in most homes and offices; which provides two independent modes of saving energy, first by turning on a light to indicate when to change the filter and secondly by extending the fan operation for a few minutes without disruption. Uniquely conceived, smaller than the typical thermostat controller, automatic, maintenance free, no batteries or auxiliary power of any kind. Has one button (32) to reset the light (30) after changing the filter and one switch (34) to select the optional extended fan operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.