Contact spring set for high electrical currents
CA 2049462 A1 · Owner: Siepmann, Richard · Inventors: Siepmann, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the contact arrangement the contact pieces are not arranged, between the two contact springs but between the outside of one, contact spring and a bent-off section of the second contact spring which embraces the first in bow-shaped fashion. As a result thereof, the electrodynamic forces between the two contact springs which occur given opposite current directions no longer act opposite the contacting force, but rather intensify it.
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
- Filed August 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 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.