Method of reducing deleterious effects of turbine flow meter wear, and a turbine flow meter assembly
CA 2479403 C · Owner: Isaac, Phil · Inventors: Isaac, Phil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of reducing deleterious effects of turbine flow meter wear and a turbine flow meter assembly constructed in accordance with the teachings of the method. A first step involves positioning a wear sleeve around the turbine flow meter. The wear sleeve has an exterior surface with at least one circumferential seal. A second step involves inserting the turbine flow meter and wear sleeve in a liquid flow conduit in which flow is to be measured with the at least one circumferential seal preventing liquid from passing between the wear sleeve and the conduit.
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 30, 2004 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2026.
- 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.