Cleaning methods and apparatus
CA 1105075 A · Owner: Xerox Corporation · Inventors: Lane, John N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a method and apparatus for cleaning material from a support surface such as an, imaging surface of a photocopier. The surface is moved in one direction relative to a cleaning blade that engages the surface. There are rest periods of no relative motion between the blade and surface. During these periods the blade is moved out of contact with the surface at a first position and is returned to engagement with the surface at a second position downstream of the first position. The relative motion between the blade and surface may be reversed with the blade still in engagement with the surface prior to the rest period. This reversal of relative motion tends to break up and …
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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 July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- 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.