Squeeze roller retraction assembly
CA 1065005 A · Owner: Ricoh Company · Inventors: Ota, Sakae; Okamoto, Toyoo; Ariyama, Kenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A squeeze roller retraction assembly for use with electrophotographic copying machines of the type in which a photosensitive drum is removable from the machine, for inspection or other purposes through an opening, formed in a sidewall which opening is normally covered by a coverplate. A squeeze roller which normally engages with the peripheral drum surface is automatically released its engagement therewith once the coverplate has been dismounted from the sidewall and also returned to its operative position as far as the coverplate has been remounted to thereby prevent a damage of the drum as well as a wrong usage of the machine which may be caused by forgetting replacing the squeeze roller …
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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 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 23, 1996.
- 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.