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:
Sep. 01, 2015
Filed:
Sep. 14, 2011
William L. Kopko, Jacobus, PA (US);
Andrew John Graybill, Hellam, PA (US);
Glenn Eugene Nickey, New Oxford, PA (US);
Israel Federman, York, PA (US);
Satheesh Kulankara, York, PA (US);
William L. Kopko, Jacobus, PA (US);
Andrew John Graybill, Hellam, PA (US);
Glenn Eugene Nickey, New Oxford, PA (US);
Israel Federman, York, PA (US);
Satheesh Kulankara, York, PA (US);
Johnson Controls Technology Company, Holland, MI (US);
Abstract
A system and method for controlling an economizer circuit is provided. The economizer circuit includes a valve to regulate refrigerant flow between the economizer and the compressor. The valve can be opened to engage the economizer circuit or closed to disengage the economizer circuit based on the output frequency provided to the compressor motor by a variable speed drive and an operating condition of the economizer.