Expired Canadian patentCanada
Two motor redundant drive mechanism
CA 1317796 C · Owner: Hughes Aircraft Company · Inventors: Grant, Richard W.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Motors (42,44) each have a pinion driving ring gear (62). Motor (42) is mounted on the platform and motor (44) is mounted on ring gear carrier (56). Rotation of either motor rotates carrier (56) hubs (40), and shaft (30).
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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 May 18, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 18, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 12, 1988
GrantedMay 18, 1993
Term endedMay 18, 2010
Patent numberCA 1317796 C
Classification (IPC)F16H37/06 +2 more
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.