Nozzle closing valve, as well as pressure atomizer nozzle having such a nozzle closing valve
CA 2175272 C · Owner: Caminada, Marcel · Inventors: Caminada, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a nozzle closing valve (14), particularly for the pressure atomizer nozzle of an oil burner, which comprises an inlet side (20 27) with an inlet port, (27) and a valve seat (28) located at the end of the inlet port (27) as well, as a closing member (23), which is sealingly pressed onto the valve seat (28) by a first spring (21) located behind the closing member (23) and is raised from the valve seat (28) counter to the tension of the first spring (21) when a predetermined pressure is reached in the inlet port (27) a maximum sealing, action is achieved in the case of easy manufacture and compact construction in that the closing member is constructed as a diaphragm (23) the first spring, …
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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
- Filed April 29, 1996 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2018.
- 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
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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.