Electrostatic printer drum improvements
CA 1194362 A · Owner: Decision Data Computer Corporation · Inventors: Miller, Robert J.; Romeo, Albert J.; Beisty, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an electrostatic printer having a rotatable drum with a photoreceptor belt mounted on the periphery. The photoreceptor belt is advanced past a cathode ray tube which forms an electrostatic image on its surface. A wiper brush is recessed within an opening extending transversely of the drum surface and is mounted for movement on arms from the recessed position to a position in which it wipes the face of the cathode ray tube as the drum is rotated. Also enclosed in conjunction with the wiper brush is a mechanism for periodically indexing the supply of photoreceptor web from a supply reel to a take-up reel both located interiorly of the drum. The photoreceptor advance mechanism …
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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 October 1, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2002.
- 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.