Method, system and composition for soldering by induction heating
CA 2034209 C · Owner: Metcal, Inc. · Inventors: Mcgaffigan, Thomas H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a method for, soldering using induction heating which is, accomplished by the use of lossy heating particles in or on the solder and an alternating magnetic field. The lossy heating particles useful in this invention are magnetic particles which can be ferromagnetic particles or ferrimagnetic particles, preferably ferrites which have a Curie temperature at least equal to the flow temperature of the solder. These particles thereby provide a self-regulation feature which prevents overheating of the solder in the articles being soldered. The invention also discloses the use of particles with surface properties whereby the particles can either be wetted by the solder and …
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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
- Filed January 15, 1991 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2013.
- 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.