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:
Apr. 10, 1990
Filed:
May. 01, 1989
Applicant:
Inventor:
Calvin R Wylie, Fair Oaks, CA (US);
Assignee:
Beutler Heating and Air Conditioning, Inc., Sacramento, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F / ;
U.S. Cl.
CPC ...
236 493 ; 98 316 ;
Abstract
A system for lessening the temperature differential between the upper and lower levels of a building including sensing means for sensing the temperatures of both of said levels, air delivery means for delivering air between the level interiors, and control means for activating the air delivery means when a temperature differential of a predetermined magnitude is sensed by the sensing means.
Wylie, Calvin. (1990). System for monitoring and equalizing temperature in multi-story buildings (U.S. Patent No. 4915294). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4915294
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile