Variable speed electrical motor without centrifugal switch
CA 2428394 A1 · Owner: California Acrylic Industries · Inventors: Loyd, Casey; Vargas, Pedro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable speed electrical AC induction motor has windings and a rotor disposed within a motor housing. A switch for varying the speed of the rotor is disposed at a, location external of the motor housing. The variable speed electrical AC induction motor is, ideal for use in a water recreational combination such as a spa, hot tub or , recirculating bath tub. Because the AC induction motor has a switch which is external to the motor housing, repair or replacement of the switch is conveniently and easily accomplished without having to, take apart the electrical motor.
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 May 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2025.
- 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.