Ptc starter for an asynchronous motor
CA 1270029 C · Owner: Danfoss A/S · Inventors: Jorgensen, Geert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A PTC starter for an asynchronous motor comprises a housing consisting of a base portion (1) and a cover portion (2). The base portion (2) comprises holders adapted to hold a disc-like PTC resistor (12) and sheet metal contact plates (14, 15) on both sides thereof as a loose stack during assembly of the cover portion (2). The contact plates (14, 15) lie against the PTC resistor (12) as the cover portion (2) is placed on the base portion (1). This permits automatic assembly. Damage of the end electrodes of the PTC resistor (12) is avoided.
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 June 5, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 2007.
- 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.