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. 06, 2009
Filed:
Dec. 27, 2004
Pengju Kang, Hartford, CT (US);
Sivakumar Gopalnarayanan, Simsbury, CT (US);
Dong Luo, South Windsor, CT (US);
Timothy P. Galante, West Hartford, CT (US);
Pengju Kang, Hartford, CT (US);
Sivakumar Gopalnarayanan, Simsbury, CT (US);
Dong Luo, South Windsor, CT (US);
Timothy P. Galante, West Hartford, CT (US);
Carrier Corporation, Farmington, CT (US);
Abstract
An air conditioning system includes a plurality of sensors for sensing temperature and/or pressure conditions of the system which collectively indicate the actual refrigerant charge level in the system. This level is then compared with optimum level values that are stored in memory, and the difference between the two is used to indicate whether the system is properly charged. If not, the difference is applied to open a charge valve or a purge valve to automatically install additional refrigerant or to remove refrigerant so as to establish an optimum volume of refrigerant in the system.