Disposable apparatus and method for infusing a material into a closed loop system
CA 2075400 C · Owner: Spectronics Corporation · Inventors: Leighley, Kenneth C.; Cooper, B. William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for infusing an atomized liquid material into an operating, pressurized closed-loop system. The method uses an atomizing mist infuser comprising a pre-filled liquid filled disposable capsule (12) having a sealable inlet (14) sealed by an inlet seal (54) and a sealable outlet (16) sealed by an outlet seal (52). The disposable capsule has a reservoir (18) containing a predetermined amount and concentration of liquid to be infused into the system. The capsule inlet and outlet are in open communication with the capsule reservoir. The capsule outlet is connected to the closedloop system, and an externally available high pressure system carrier fluid supply (30-37) is …
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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 August 6, 1992 and granted April 1, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2014.
- 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.