Process and an apparatus for the control of a leakage cavity of a valve
CA 1287550 C · Owner: Mieth, Hans O. · Inventors: Mieth, Hans O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to both a process and an apparatus for the control of a leakage cavity of a valve which is fitted with two sealing places which are disposed in series and in the closed position of the valve prevent the overflow of fluid from one valve casing part into another one with the leakage, cavity disposed between the sealing places and connected to the outside of the valve through the valve casing wherein, the closed position of the valve the connection of the leakage cavity with an inside space of the valve casing parts is sealed by a closing member cooperating with the two sealing places. By the proposed process and the apparatus for its realization it is inter alia …
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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 August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.