Detector of the flowing of a fluid in a pipe and energy saving device for a hot water system using this detector
CA 1207404 A · Owner: Lawless, Jacques · Inventors: Lawless, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for detecting the flowing of a fluid in a pipe, comprising a tubular element vertically mounted on the pipe for serially interconnecting two portions of this pipe. One of these portions is connected to the upper end of the tubular element while the other portion is connected to its lower end. A piston made of a magnetic material is slidably mounted within the tubular element and is therefore free to move along it. A by pass conduit interconnects a part of the tubular element adjacent to its lower end with the portion of the pipe which is connected to the upper end of the tubular element to allow the fluid to flow from the portion of the pipe connected at the lower end of the …
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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
- Granted July 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 2003.
- 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.