System for modifying temperatures of multi-story building interiors
US4993629A · kind A · utility
14Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F8/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Apparatus for modifying the temperatures of upper and lower level building interiors including air delivery means, heat generating means and first and second temperature sensing means for sensing the temperatures of the upper and lower level interiors. Air is delivered from the upper level interior to the lower level interior when there is a first sensed temperature differential between the interiors and the air is heated when the sensed differential drops to a predetermined lesser magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.