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:
Mar. 30, 2010
Filed:
Sep. 09, 2008
Applicant:
Charles Barry Ward, Alpharetta, GA (US);
Inventor:
Charles Barry Ward, Alpharetta, GA (US);
Assignee:
Diversitech Corporation, Duluth, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure gauge for determining refrigerant pressure and the saturated vapor equivalent temperature for a refrigerant in an HVAC system. The pressure gauge employs a bourdon tube with at least one attached strain gauge to sense the refrigerant pressure and produce an electronic pressure signal. The electronic pressure signal from the output of the strain gauge is attached to a microprocessor, which calculates and displays the refrigerant pressure, the saturated vapor equivalent temperature for a variety of refrigerants, and produces instantaneous and time lapsed representations of those parameters.