Fixing device for fixing a powder image on a receiving sheet
CA 2001713 C · Owner: Geraets, Jacques Joseph Marie · Inventors: Geraets, Jacques Joseph Marie; Van Der Sterren, Martin Leonard; Graswinckel, Julius Vitringa Cornelis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fixing device for fixing a powder image on a receiving sheet in a fixing nip formed by a fining roller and a pressure roller which has a lower flexural stiffness than the fixing roller. These rollers are pressed against one another by a stationary cushion filled with compressed air and pressing against the pressure roller in a pressure zone situated opposite the fixing nip. When the pressure roller and the fixing roller are driven tangentially, directed frictional forces are exerted on the pressure roller that causes the presssure roller to deflect against a curved support surface which limits the deflection. The pressure roller deflected in the operative position causes a receiving sheet …
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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 27, 1989 and granted January 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2011.
- 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.