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. 22, 2003
Filed:
Sep. 29, 2000
Applicant:
Inventor:
Eric Immel, West Linn, OR (US);
Assignee:
InFocus Corporation, Wilsonville, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/520 ; F28F 7/00 ;
U.S. Cl.
CPC ...
G01N 2/520 ; F28F 7/00 ;
Abstract
A method and apparatus for measuring the cooling efficacy of air comprising coupling a resistive element to a temperature sensing element, applying a voltage across the resistive element, adjusting the voltage across the resistive element so that the temperature indicated by the temperature sensing element is nearly proportional to the temperature of a locally disposed heat sensitive component for a change in environmental parameters, and coupling the output of the temperature sensing element to a control circuit wherein the control circuit controls a space cooling element.