Dry-type transformer having a generally rectangular, resin encapsulated coil
CA 2326328 A1 · Owner: Pruess, D. Christian · Inventors: Pruess, D. Christian; Nathasingh, David M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dry-type power distribution transformer (10) has a generally rectangular wound ferromagnetic metal core (20) and a resin encapsulated generally , rectangular coil (40). The core has a generally rectangular core window (22) within which is located a substantially straight section of the coil. When assembled to form a power distribution transformer the shape of the coil's , substantially straight section conforms to the shape of the core window. The transformer is inexpensive to manufacture exhibits low resistivity and low , core loss and is lightweight, compact and reliable in operation.
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 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
- 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.