A ball tap with a water level switch
CA 2394920 A1 · Owner: Mizuno, Hiroyuki · Inventors: Kato, Nobuhide; Mizuno, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compact ball tap with 1 a water level switch which comprises a guide standpipe 5 vertically arranged in a tank T a float 6 slidably installed on , the, guide standpipe 5 a valve 3, a lever 4 controlling an open-close action of the, valve 3 connected with the float 6 and a water level switch 29 transmitting predetermined control signals when the float 6 shifts to a predetermined water level, wherein one float 6 is shared by the ball tap 1 and the water level switch, 29.
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 July 24, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2024.
- 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.