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:
Mar. 13, 1979
Filed:
Dec. 19, 1977
Applicant:
Inventors:
George D Martens, New Milford, CT (US);
T B Hendricks, Bethel, CT (US);
Assignee:
Automation Industries, Inc., Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73625 ; 73641 ;
Abstract
A search unit for detecting internal flaws in the web of a railroad rail includes a plastic polymer shoe having a base surface contoured to conform generally to the web surface and of sufficient width to extend substantially across the width of the web. A plurality of dual ultrasonic transducers, each transducer including a transmitter and a spaced receiver, form a linear array across the width of the shoe and are angled with respect to each other. A couplant fluid is injected between the shoe and the rail web through fluid inlets in the shoe as the unit is slid along the rail.