Apparatus for taking a volume-adjustable sample from a moving fluid
CA 2192149 C · Owner: Steiger, Martin · Inventors: Dangelmaier, Peter; Steiger, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This apparatus (10) serves for taking a volume-adjustable sample from a fluid moving in an open channel or flowing in an unpressurized state in a pipe. The apparatus has a chamber (11) for receiving the sample and an intake/discharge line (12) which is immersed in the fluid and is connected to an opening (13) in a base (14) of the chamber. A sample outlet line (15) is arranged in the base of the chamber. The intake/discharge line opens into a vertical inner intake pipe (16). A a rotatable outer intake pipe (17) is placed over the inner intake pipe (16). The wall of the inner intake pipe (16) is provided with an axially parallel elongate hole (161) and the wall of the outer intake pipe (17) …
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 December 5, 1996 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2018.
- 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.