Sampling device for collecting fume
CA 1290170 C · Owner: Cloutier, Yves · Inventors: Cloutier, Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved sampling device for collecting at least part of air-borne particles in a workman's breathing zone. The device comprises a cassette provided with an inlet, an outlet and an air filter, a vacuum pump and a flexible tubing of determined length connecting the vacuum pump to the outlet of the cassette. In use a portion of, the air contained in the breathing zone of the workman is drawn through the filter and the particles collected thereon. This device is improved in that a deformable metallic tubing is positioned inside a portion of the flexible tubing or is positioned between a short length of a tubing connected to the outlet of the cassette and this flexible tubing. In addition, …
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
- Granted October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- 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.