Air-in-line detector
CA 1269144 C · Owner: Rosso, Vincent A. · Inventors: Rosso, Vincent A.; Carter, Nigel F.; Balding, Alan S..
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Air-In-Line Detector An air-in-line detector for detecting the presence of air in a translucent tube containing a liquid comprises a channel for receiving the tube, only three radiation emitter detector pairs two of which are arranged to detect the presence of an opaque liquid with the emitter and detector of each pair being located on opposite sides of the channel so that radiation emitted by the radiation emitters impinges directly on their associated detectors and one of which is arranged to detect the presence of translucent liquids with its emitter and detector being located on opposite sides of the channel but not directly aligned so that radiation emitted by the radiation emitter …
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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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
- 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.