Weighted noise reducing device for photosensitive drum of an image forming apparatus
CA 2432725 A1 · Owner: Zogg, Jon · Inventors: Fritz, Richard; Zogg, Jon; Russell, Laurie A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device and method for reducing noise and/or vibration in an image forming apparatus. In a preferred form, an insert (200) is disposed inside of a photosensitive drum (1), and the insert (200) is an elastic member having in , a relaxed state, an outer diameter larger than an inner diameter of the inner surface of the photosensitive drum (1). The insert (200) is compressed to allow insertion, and once inserted, projections (202) on the insert (200) hold the insert (200) against the inner surface of the photosensitive drum (1). As such, the insert (200) can be anchored to the interior of the photosensitive drum (1) without using adhesive and can be easily removed for recycling …
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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 December 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2023.
- 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.