Disk cleaning device and disk operating apparatus incorporating the same
CA 2048703 A1 · Owner: Sasaki, Toshikazu · Inventors: Sasaki, Toshikazu; Tanaka Katsufusa; Kawamura, Masaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disk operating apparatus includes a recording/reproducing device and a disk cleaning device both mounted on an upright stocker between a pair of opposed side plates thereof. The cleaning device is able to automatically clean a great number of disks in a simple and most efficient manner in a short time. To this end, a disk cartridge 110 is loaded into a housing 10 by means of a loading mechanism 12 and placed in position on a turntable 18 with a portion of the disk 112 in the cartridge being exposed therefrom. The turntable 18 is rotated by a drive mechanism 28 while a cleaning tape 15 which is wound at one end thereof around a feeding reel 22 and at the other end thereof around a winding …
Read the whole patent
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 August 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2013.
- 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.