Supply valve and arrangement for fire suppression water sprinkler system
CA 2049024 C · Owner: Agf Manufacturing, Inc. · Inventors: Mchugh, George J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A supply valve (36) and an arrangement for supplying testing and draining a , fire suppression water sprinkler system includes a supply valve (36) which has a valve member (84) with at least first (140), second (144) and third (146) ports. The selective rotation of the valve member (36) varies communication between the inlet (66) of the valve and one or more outlets (64 68) for the, valve. A sensor (38) for detecting a flow of water through the supply valve is provided within valve member (36) and has a member (120) which is generally aligned with a turning axis of the valet member. The flow sensor arrangement may be provided in a valve of general utility.
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 March 8, 1990 and granted October 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2012.
- 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.