Flow sensor and strainer integrated flowmeter
CA 2340755 A1 · Owner: Yamagishi, Kiyoshi · Inventors: Hiraizumi, Kenichi; Takahata, Takayuki; Yamagishi, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A strainer integrated flowmeter (201) which comprises a strainer section (203) including a housing (202) formed with a flow passage (207) a filter member , (209) and a filter member insertion cylinder (210) and a flowmeter section , (204) including the housing (202) formed with a flow passage (208) and a flow sensor (226). The housing (202) for the strainer section (203) and flowmeter section (204) is shared therebetween and integrated with the flowmeter , section (204) disposed downstream the strainer section. The housing (202) has an exhaust hole (215) connected to the flow passage (207). This arrangement makes it difficult for foreign matter to enter the flowmeter and prevents air …
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 August 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2021.
- 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.