Ultrasonic inspection apparatus for vertical members
CA 1059613 A · Owner: Lamb, William C. · Inventors: Hauldren, H. Morris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An ultrasonic inspection apparatus for use in inspecting drill pipe or like tubular members being tripped into and out of a well borehole comprises a planarly arranged set of ultrasonic search units, such as wheel search units arranged, on a frame suspendible within the well derrick and defining a vertical passage for the tubular member. Access is provided to the passage by the tubular member from a direction transverse to the longitudinal axis of the tubular member for example, by, providing an openable hinged frame. When in the passage the, search units are urged into contact with and are sonically coupled to the tubular member. The device is manually …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 31, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 31, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.