Incrementally positionable ball valve
CA 2283003 A1 · Owner: Mueller Industries, Inc. · Inventors: Miller, Kent Allan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An incrementally positionable ball valve for use in the fluid circuit of a refrigeration or air conditioning system which can be remotely controlled by a low, amperage control signal is disclosed. The ball valve harnesses the pressurized refrigerant from the fluid circuit in which it is installed as the primary power medium, to actuate the valve. A sensor provides feedback to a controller relating to the, incremental position of the valve. The controller then controls the operation of the, valve in accordance with predetermined criteria. In another embodiment the , ball, valve incorporates locator detents so that its incremental position can be determined, by an operator manually …
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 September 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2021.
- 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.