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:
Nov. 26, 1996
Filed:
Sep. 15, 1994
Mark L Haddox, Ann Arbor, MI (US);
Jodon Engineering Associates, Inc., Ann Arbor, MI (US);
Abstract
A method and apparatus for measuring circumferential characteristics of train wheels for potential indication of train wheel wear that includes at least one microwave transceiver disposed adjacent to a section of train track and oriented to transmit microwave energy toward and receive microwave energy reflected from a radially oriented surface of a train wheel that traverses the track section. Wheels are rolled along the track section in sequence while the transceiver is energized so as to transmit energy toward the wheel and develop a varying interference pattern of peaks (alternating minima and maxima) caused by reflection from the radially oriented surface of the wheel. The transceiver provides an electrical signal that varies as a function of such interference pattern, and one or more desired radial characteristics of the wheel are determined as a function of such signal.