Transmission line coupling device
CA 1301865 C · Owner: Wells, Donald H. · Inventors: Wells, Donald H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transformer and method of making same for coupling devices having differing impedances and comprising a pair of parallel conductors each constructed and arranged to have a standing wave in one which is a mirror image of the standing wave in the other so that the impedance varies from near zero at one end of the parallel conductors to a maximum at their other end. The transformer having input terminals connected to points on one conductor having an impedance matching that of one device and having ouptut terminals connected to points on the other conductor having an impedance matching that of the other device.
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.