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.:

US 7423858 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 09, 2008

Filed:

Feb. 21, 2006
Applicants:

Eugene F. Dobbs, Cambridge, MD (US);

Mervyn B. Johnston, Easton, MD (US);

Noel Keith Ware, Dagsboro, DE (US);

Inventors:

Eugene F. Dobbs, Cambridge, MD (US);

Mervyn B. Johnston, Easton, MD (US);

Noel Keith Ware, Dagsboro, DE (US);

Assignee:

Airpax Corporation, Cambridge, MD (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A self-contained current sensor unit is integrated with a standard circuit breaker as an attachment to the circuit breaker that requires minimal modification of the circuit breaker and that becomes an extension of the case of the circuit breaker. The current sensor unit includes a magnetic structure with a programmable Hall Effect device and may include a power supply, a Hall Effect voltage regulator, and an output signal conditioner.


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