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:
Oct. 16, 2007
Filed:
Dec. 10, 2004
Thomas Michael Unger, Burnaby, CA;
Mare Badenhorst, Port Coquitlam, CA;
James Alexander Eichner, Vancouver, CA;
Masautso Wilson Ngosi, Port Conquitlam, CA;
Thomas Michael Unger, Burnaby, CA;
Mare Badenhorst, Port Coquitlam, CA;
James Alexander Eichner, Vancouver, CA;
Masautso Wilson Ngosi, Port Conquitlam, CA;
Xantrex International, St. Michael, BB;
Abstract
A system having input terminals including line and neutral terminals for receiving AC power from a first AC source and having output terminals including output line and neutral terminals for receiving AC power from output terminals of a second AC source and for supplying AC power to a load, has a transfer switch configurable to connect the input terminals to the output terminals or to isolate the input terminals from the output terminals. When the transfer switch is configured to isolate the output terminals from the input terminals, the second AC source is caused to cease supplying power to the output terminals when after phase shifting the voltage produced by the second source the voltage at the input terminals is in-phase with that voltage.