The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 1991
Filed:
Apr. 06, 1990
Applicant:
Inventor:
Tommy L Thompson, Tucson, AZ (US);
Assignee:
Planetary Design Corporation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
62311 ; 62305 ;
Abstract
A tower, or vertical shaft, equipped with a two stage evaporative cooler near the top. The chimney effect, in reverse, causes the cool air to flow by gravity down the tower. The air can be used for cooling and ventilating structures. In one embodiment of the invention, the ambient air flow is all that is required for the embodiment to operate and all reliance upon electrical energy is eliminated.