Acoustic emission transducer and system
CA 1094677 A · Owner: Exxon Nuclear Company, Inc. · Inventors: Robinson, Dan L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Acoustic signals emitted by systems under pressure or stress are detected by acoustic sensors placed on the structure and the detected acoustic emissions are processed and analyzed to determine the presence of any defects in the structure, their location and significance. The sensor comprises a relatively small diameter transducer which can be bonded at appropriate locations on the surface of the system being tested. After being used the transducers can be removed and reused again. Each transducer comprises a machined metal casing which includes a combined lens wearplate which is unitary, that is integral with the casing and a, detecting element such as a piezoelectric crystal bonded to the …
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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 January 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 27, 1998.
- 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.