Structure of faucet for automatic water supply and stoppage
CA 2059017 A1 · Owner: Chi, Cheng-Hsian · Inventors: Chi, Cheng-Hsian; Chi, Cheng-Hsian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A faucet for automatic water supply and stoppage comprising a casing having fastened therein a batteryoperated two-way electromagnetic valve controlled by an infrared controller to control a water flow control assembly to stop or open a water outlet passage. The water flow control assembly comprises a movable stopper to releasably block up the water outlet passage, an elastic element disposed above the movable stopper, covered with a cover plate, and defining with the cover plate a water chamber. The cover plate has an outlet hole at the top which is, controlled to open or close by the mandrel of the electromagnetic valve and disposed in communication with the water outlet passage, and an …
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 January 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2014.
- 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.