System for modifying temperatures of multi-story building interiors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 19, 1991
Issued Date -
N/A
app pub date -
Mar 5, 1990
filing date -
May 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully