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:
Jun. 21, 1995
R Mark Havira, New Fairfield, CT (US);
Anthony Iorfino, Stamford, CT (US);
Pandrol Jackson Technologies, Inc., Danbury, CT (US);
Abstract
An ultrasonic railhead investigating apparatus is described wherein a side looking transducer is used with a lens to focus the beam in a manner whereby rail defects in the sides of rail head are more readily detected. In one form of the invention a side rail investigating transducer is provided with a curved emitting surface and so located as to place the focused acoustic beam between a side of the rail and the rail center. The curved emitting surface can be part of a cylindrical surface aligned parallel with the longitudinal axis of the rail or a spherically shaped emitting surface to provide a conically shaped beam for investigating the side of a rail.