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:
May. 25, 1976
Filed:
Dec. 12, 1973
Anthony Charles Richardson, Houston, TX (US);
Inspection Technology Development, Inc., Houston, TX (US);
Abstract
An ultrasonic inspection method and apparatus for inspecting test objects such as pipeline girth welds are disclosed. Ultrasonic transducers are carried by a track circumferentially mounted around the pipeline. The transducers are mounted in a hollow, open-ended housing and a flexible seal fixed to the housing retains coupling liquid between the transducers and the pipeline to permit the propogation of waves between the transducers and the weld. An adjustable pressure regulating device maintains substantially constant liquid pressure within the housing in order to minimize the loss of coupling liquid and yet insure adequate coupling between the transducers and the weld.