Whirlpool bath provided with hot water blow-off control
CA 2006910 A1 · Owner: Moriyama, Kenji · Inventors: Uchiyama, Koichi; Inatomi, Yasutoshi; Obata, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A whirlpool bath is provided with a bathtub body a circulating pump, a hot water circulation path disposed between said bathtub body and said circulating pump, a plurality of blow-off nozzles which are mounted on said respective terminal ends of the hot water circulation path and an, air intake portion connected to the hot water circulation path to permit blowing of air-mixed hot water into said bathtub body from the blow-off nozzles and control means for controlling at least one out of the degree of opening of each blow-off nozzle degree of opening of the air, intake portion and the number of revolutions of said circulating pump to provide the blow-off of the hot water in various modes …
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 December 29, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 29, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 29, 2011.
- 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.