Methods of winding armatures with modified side pattern
CA 2091050 C · Owner: Lombardi, Massimo · Inventors: Lombardi, Massimo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of winding coils on an armature in which the start and finish leads for the first coils to be wound are wrapped around the armature shaft between the armature core and commutator so that these leads are supported by the shaft and are largely out of the way when the later coils are wound. The start and finish leads for the later coils are not wrapped around the armature shaft, but rather run more directly to the commutator as in conventional side pattern winding.
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 March 4, 1993 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2015.
- 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.