Shut-off valve
CA 2097940 C · Owner: Clare, Manamohan · Inventors: Clare, Manamohan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a quick-acting shut-off valve for hydraulic installations, particularly for pressure balanced mixing valves such as might be used, in a shower/tub installation. The shut-off valve includes a casing mounted to the, installation housing adjacent an inlet port thereof there being a , reciprocable actuator, sealingly retained within the casing for direct movement between first and second, positions. The actuator carries a valve member at a distal end thereof for sealingly, blocking the inlet port when the actuator is in its second position. When the actuator, is in its first position the inlet port is open to normal water flow therethrough. The, actuator utilizes a …
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 June 8, 1993 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2015.
- 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.