Fluid flow control device
CA 1065736 A · Owner: Bron, Dan · Inventors: Bron, Dan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid flow-rate control device is disclosed which has a housing; an elastic stretchable membrane dividing the interior of the housing into a first and a second chamber; an inlet port of the housing leading to a fluid source and communicating with the first chamber; and an outlet port of the housing communicating with the second chamber. The first and second chambers are in fluid communication via at least one passageway the dimensions of which remain unchanged during operation and the membrane is fixedly held and, positioned between the chambers so that when the membrane is exposed to a fluid pressure differential, it is adapted to be stretched and a portion thereof to move, solely by …
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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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
- 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.