Line pressure regulator
CA 2011009 C · Owner: Davey, Kenneth John · Inventors: Davey, Kenneth John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An in-line pressure regulator comprises a housing having an inlet and an outlet. The housing provides a first chamber open to the inlet which has a first port open to a second chamber, a second port opens to the second chamber which also, has a third port opening to the outlet. A support element is movably received within the first and second chambers and accommodates a set of three valve members wherein a valve member is associated with each port. The support element is movable within the first chamber to vary the extent of engagement of the valve members with the first and second ports. The support element is biased to an end position at which the first and second ports are open, and 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 February 27, 1990 and granted November 2, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2012.
- 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.