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:
Oct. 08, 2013
Filed:
Apr. 13, 2012
Applicants:
Larry D. Frederick, Huntsville, AL (US);
Dwight Medley, Fayetteville, TN (US);
Inventors:
Larry D. Frederick, Huntsville, AL (US);
Dwight Medley, Fayetteville, TN (US);
Assignee:
Strata Proximity Systems, LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Embodiments described herein relate to proximity detection systems and a method for internal traffic control in a work zone. In various embodiments, magnetic field generators generate respective oscillating magnetic fields for detection by magnetic field detectors. The magnetic field detectors generate a signal for providing a visual and/or audible warning to operators in response to detecting the magnetic field.