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.

Date of Patent:
Feb. 26, 2013

Filed:

Oct. 24, 2007
Applicants:

Artur J. Lewinski, Dallas, TX (US);

Ross Teggatz, McKinney, TX (US);

Thomas Edward Cosby, Rockwall, TX (US);

Inventors:

Artur J. Lewinski, Dallas, TX (US);

Ross Teggatz, McKinney, TX (US);

Thomas Edward Cosby, Rockwall, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/14 (2006.01); H01H 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods and apparatus for continuous ground fault self-test are disclosed. An example ground fault detection device includes a sense coil to detect current in a line conductor and a neutral conductor, the sense coil comprising a winding influenced by a current difference between the line conductor and the neutral conductor. The example ground fault detection device also includes a current bypass to facilitate a continuous current imbalance detected by the sense coil, and a ground fault detector circuit to detect at least one of the continuous current imbalance in the sense coil or a ground fault current imbalance.


Find Patent Forward Citations

Lewinski, Artur. (2013). Methods and apparatus for continuous ground fault self test (U.S. Patent No. 8384392). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8384392

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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