Drive assembly for microfilm cartridges
CA 1303583 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Mobius, Heinz G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Drive Assembly For Microfilm Cartridges Abstract, A drive assembly for reels of microfilm provided in a cartridge and placed in a cartridge receiving channel (19) in a direction normal to the axis of the reel supporting the coil of microfilm and usuable with cartridges (70, 80) having differently designed reels comprises a main drive shaft (2a) which can be coupled direct to the reel with a backup wheel (1) or coupled to a drive head (4) that is conected in driving engagement with the reel. Automatic locking means (21) and spring biased drive parts (4, 28, 15) afford a drive that is adaptable to the cartridge reel. Releasable drive means (6 43, 44), withdraw the drive shaft (28) and drive …
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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
- 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.