Method and apparatus for cleaning fabrics
CA 1281570 C · Owner: Boisvert, Jean-Paul · Inventors: Green, Marshall Smith; Boisvert, Jean-Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is taught a method and apparatus for the removal of foreign material and fluid from a fabric such as a press felt in a paper making machine wherein a jet of gaseous material is directed at a surface of the felt without penetrating the felt to create a low pressure area to remove the fluid and foreign material within the fabric.
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 March 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 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.