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. 19, 1991
Filed:
Dec. 21, 1989
Todd C Secoy, Cupertino, CA (US);
Ford Aerospace Corporation, Palo Alto, CA (US);
Abstract
An acoustic emission waveguide (10) for holding a test sample (29) in a hostile environment and guiding ultrasonic waves to a transducer (34) disposed in a non-hostile environment. The waveguide (10) includes a flattened test sample attachment end (15) having a flat bar clamp (22) to hold test specimens (29) thereto. The transducer attachment end (17) includes a clamp (32) which holds the transducer (34) firmly against the waveguide end (17) and against a threaded nut (30) which increases the surface area of the end (17) of the waveguide, such that enhanced acoustic transmission to the transducer (34) is achieved. A couplant grease is utilized in the test sample clamp (20) and in the transducer attachment clamp (32) to enhance the transmission of acoustic energy from the test sample (29) to the waveguide rod (12) and from the rod (12) to the transducer (34).