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. 14, 2010
Filed:
Mar. 30, 2007
John Michael Wruble, Renton, WA (US);
John Michael Wruble, Renton, WA (US);
Alset Corporation, Seattle, WA (US);
Abstract
A lightning protection device is provided. The device includes a lower field coupler, an upper field coupler, a lightning sensor, and a controller. The lightning sensor includes a differential voltage window comparator. The lower field coupler is capacitively coupled to the earth ground, and the upper field coupler is coupled to the local atmospheric electric field. If a ground potential rise (GPR) event occurs, the differential voltage window comparator trips. If the differential voltage window comparator trips or if a power line transient occurs, the controller disconnects the power phase, neutral, and ground wires to isolate sensitive equipment. In some embodiments, the controller also detects power line transients and disconnects the power, phase, neutral, and ground wires if a power line transient is detected.