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:
Jan. 09, 2007
Filed:
Jul. 28, 2004
Payman Sadegh, Manchester, CT (US);
Mohsen Farzad, Glastonbury, CT (US);
Alan M. Finn, Hebron, CT (US);
Pengju Kang, Hartford, CT (US);
Slaven Stricevic, Willimantic, CT (US);
Payman Sadegh, Manchester, CT (US);
Mohsen Farzad, Glastonbury, CT (US);
Alan M. Finn, Hebron, CT (US);
Pengju Kang, Hartford, CT (US);
Slaven Stricevic, Willimantic, CT (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
A method for detecting and predicting refrigerant level includes the steps of determining an estimated value for a parameter indicative of refrigerant level and comparing that estimated value to an actual value. The difference between the actual and estimated value provides a refrigerant charge indicator value. The charge indicator value is indicative of the amount of refrigerant contained within the system. A change value is combined with the charge indicator value to provide a prediction for the future value of the charge indicator value. This future value is determined based on a rate of change and charge indicator value over a selected period of time.