Jason Miles Kahn

US Patent:

8365604, Feb 5, 2013

Filed:

Aug 31, 2010

Appl. No.:

12/872460

Inventors:

Jason M. Kahn - Savannah MO, US

Assignee:

Herzog Services, Inc. - St. Joseph MO

International Classification:

G01N 29/04
G01N 33/00

US Classification:

73636, 738658

Abstract:

An apparatus and method for inspecting a rail joint bar transported along a railway rail by an inspection vehicle is provided. The apparatus and method includes a pair of ultrasonic transducers housed in liquid-filled wheels. The wheels are positionable for a stored position to a measurement position in rolling contact with the vehicle surfaces of the rail joint bars on each side of the rail. The ultrasonic transducer transmits a signal into the rail joint bar and the reflected signal is detected by the transducer and analyzed to identify flaws in the rail joint bar.

US Patent:

20120218868, Aug 30, 2012

Filed:

Feb 28, 2011

Appl. No.:

13/036450

Inventors:

Jason M. Kahn - Anthem AZ, US
Jeffrey B. Wigh - St. Joseph MO, US

Assignee:

Herzog Services Inc. - St. Joseph MO

International Classification:

G01S 15/00

US Classification:

367 99

Abstract:

An inspection apparatus for detecting defects in a rail joint bar includes an ultrasonic transducer mounted on an actuator for moving the transducer into and out of engagement with a vertical surface of the head of the joint bar. A laser profile system and an encoder output linear position data corresponding to the position of a joint bar relative to the position of the inspection apparatus. A system controller responsive to the identification of the presence of a joint bar or obstructions, outputs control information to the transducer actuator assembly to position the transducer assembly relative to the joint bar.