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.:

US 6505502 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 14, 2003

Filed:

Nov. 01, 2001
Applicant:
Inventors:

Kyle A. Brownell, Schofield, WI (US);

Chris B. Check, Wausau, WI (US);

Assignee:

Greenheck Fan Corp., Schofield, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 3/02 ;
U.S. Cl.
CPC ...
G01M 3/02 ;
Abstract

A method and apparatus is provided for determining the efficiency of an air preconditioning module having an energy transfer matrix disposed between a supply air flow to a building, and a return air flow from the building. In particular, a predetermined relationship is determined between pressure drop across measured across the matrix and the efficiency of the matrix.


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