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:
Jun. 07, 1988
Filed:
Jun. 19, 1986
Harald Schmalfuss, Rodgau, DE;
Friedel Sinsel, Frankfurt, DE;
Reinhold Bolz, Floersheim, DE;
Bernhard Schneider, Hofheim, DE;
Werner Heinze, Frankfurt, DE;
Wilhelm Hegenscheidt Gesellschaft mbH, Erkelenz, DE;
Abstract
The diameter of a wheel or wheels, such as railroad wheels, is measured while the wheel rolls through a measuring station or while a measuring station is moved past a wheel. Electromagnetic beams, such as light or laser beams, provide respective barriers or sensors. The spacing between the beams is fixed and the time needed to traverse the spacing is measured. The spacing has a definite relationship to the wheel diameter. A computer calculates the diameter based on the measured time and on the given wheel diameter related spacing. Even where only a portion of a wheel is available for sensing or scanning the present method may be used.