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. 05, 2016
Filed:
Jan. 24, 2011
Uwe Rockenfeller, Boulder City, NV (US);
Paul Sarkisian, Boulder City, NV (US);
Kaveh Khalili, Boulder City, NV (US);
Warren Harhay, Boulder City, NV (US);
Uwe Rockenfeller, Boulder City, NV (US);
Paul Sarkisian, Boulder City, NV (US);
Kaveh Khalili, Boulder City, NV (US);
Warren Harhay, Boulder City, NV (US);
ROCKY RESEARCH, Boulder City, NV (US);
Abstract
A heating, ventilation, air conditioning, and refrigeration system includes one or more variable frequency drives (VFD) controlled by one or more VFD controllers, which are configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select from a plurality of power sources based on availability of one or more power sources and time so as to maximize the economic efficiency of operating the system.