Electro-acoustic transducer with horn and reflector
CA 1136262 A · Owner: General Electric Company · Inventors: Salem, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical-acoustical ultrasonic transducer horn arrangement for operating in a transmit or receive mode at a predetermined frequency (fc) is described. The transducer horn arrangement includes a horn and an acoustical coupling means positioned within the horn for coupling acoustical energy between the horn and a limited area of a vibratory surface of the transducer.
Read the whole patent
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 November 23, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1999.
- 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.