Non-intrusive electric alternating current sensor

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means

Reexamination Certificate

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Reexamination Certificate

active

07990133

ABSTRACT:
A method and a current sensor for measuring current in a conductor are provided. The current sensor has a flexible coil having a first end and a second end and a mounting ring. The flexible coil is wrapped within the mounting ring to form a closed loop. The mounting ring has a first hole and a second hole drilled tangentially to an inner diameter of the mounting ring. The first end of the flexible coil extends through the first hole of the mounting ring and the second end of the flexible coil extends through the second hole of the mounting ring. The mounting ring has a channel therethrough that provides an access point so that the mounting ring can be easily flexed open or closed.

REFERENCES:
patent: 5594332 (1997-01-01), Harman et al.
patent: 6056226 (2000-05-01), Green
patent: 6351114 (2002-02-01), Iwasaki et al.
patent: 6702608 (2004-03-01), Brennan
patent: 7230413 (2007-06-01), Zhang et al.
patent: 2006/0082356 (2006-04-01), Zhang et al.
International Search Report and Written Opinion dated Apr. 30, 2010 for corresponding International Application No. PCT/US2010/026182.

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