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:
Mar. 02, 2004
Filed:
Apr. 12, 2002
Applicant:
Inventors:
Ezequiel Mejia, Woodbury, MN (US);
Yuri Smirnov, Eagan, MN (US);
Assignee:
Digital Angel Corporation, South St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01K 5/02 ;
U.S. Cl.
CPC ...
A01K 5/02 ;
Abstract
A flexible interrogator antenna design having a single antenna with an inner and an outer antenna coil positioned in a flat, flexible, rectangular housing or mat which can be positioned in a configuration having two sides and a top across an easily erected temporary frame to form a walkthrough corridor or chute through which livestock having an attached transponder can be driven. The antenna is driven to generate multi-directional electromagnetic fields in each of an 'X', 'Y' and ‘Z’ axis associated with the walkthrough to detect transponders coming into the fields, regardless of transponder orientation.