A valve and actuator in combination
CA 2316261 A1 · Owner: Crochet, Kevin · Inventors: Crochet, Kevin; Sentilles, Edward A. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A valve (2) and actuator (3) in combination with a transportation tank (403 1102) to operate off of low pneumatic pressures including a valve (2) and a valve body (4) with a tank end (5), a valve seat (23 24) near the tank end , (5) of the valve body (4) the valve seat having a value sealing surface (23- 25); a stem chamber (7) extending through the valve body (4) the stem chamber , (7) having an actuator port (22) a seat port (21), and an outlet port (8); a valve stem (13) slidably positioned in the stem chamber (7) the valve stem , (13) having a plug end (14) and a plug (17) attached to the plug end (14) the , plug (17) having a plug sealing surface (25 26) to sealingly contact the , …
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 October 6, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2019.
- 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.