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. 30, 2003
Filed:
Jul. 09, 2001
Applicant:
Inventor:
Sten R. Gerfast, Mendota Heights, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 7/300 ; G01R 1/9165 ;
U.S. Cl.
CPC ...
H01H 7/300 ; G01R 1/9165 ;
Abstract
A fast acting re-settable and low cost circuit breaker without moving parts. It has a magnetic amplification feature, and can also be used as a current limiter or current sensor. The fast acting switching function is provided by a Hall device with a binary output actuated by a coil. It is operating within microseconds and can be used to protect semiconductors from destruction by overloads. Integrated circuit fabrication processes can be used for manufacturing of this invention. This device can be used on both direct current and alternating current.