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:
Feb. 21, 2012
Filed:
Jan. 14, 2011
Applicant:
Joseph S. Simon, Jackson, WI (US);
Inventor:
Joseph S. Simon, Jackson, WI (US);
Assignee:
Carnes Company, Inc., Pewaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 21/00 (2006.01); G01N 27/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
A balancing circuit for a metal detector. The metal detector includes an oscillating power source, a transmit coil connected to the oscillating power source, first and second receive coils inductively coupled to the transmit coil, a first amplitude balancing circuit connected to the first receive coil, and a first phase balancing circuit connected to the first receive coil. The first phase balancing circuit includes a capacitor and a variable resistor.