Isolating device
CA 1188956 A · Owner: Societe D'Exploitation De Brevets Pour L'Industrie Et La Marine (Sebim) · Inventors: Gemignani, Francois; Chabat-Courrede, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Isolating device for positioning in a circuit upstream of a safety valve, wherein it comprises a poppet valve which can tightly bear against a valve seat formed in said circuit, the poppet valve normally being kept away from its seat by neutralization means which can be operated to bring the poppet valve into tight engagement with its seat when it is necessary to isolate the safety valve, whilst calibrat-, ion means act on the poppet valve when it tightly bears against its seat to enable it to move away from the latter when the pressure upstream of the isolating device exceeds a predetermined value. Application to the primary cooling circuits of nuclear power stations.
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
- Granted June 18, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2002.
- 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.