Dosing unit and a method of continuous introduction of liquid solution samples into a system
CA 2307323 A1 · Owner: Graf, Thomas · Inventors: Orsnes, Henrik; Graf, Thomas; Degn, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new device for continuous mechanical introduction of liquid sample into a mass spectrometer is described. A ball (1) mounted on a shaft (2) is supported by a polymer gasket (6) at the circumference of a hole leading into the mass spectrometer. The surface of the ball on the outside is in contact with liquid sample. Sample sticking to the surface of the ball (1) is dragged past the gasket (6) into the mass spectrometer where it evaporates and gets ionized by electron impact. With the rotating ball inlet a wide variety of compounds can be measured continuously in aqueous solution with a response time in the order of seconds. The device has potential applications in environment and …
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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 October 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2020.
- 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.