Planetary gear assembly
CA 1231555 A · Owner: Matex Co. Ltd. · Inventors: Matoba, Hideyasu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement is provided in a planetary gear transmission. The transmission includes a unitary sun gear having an inner gear portion and two outer sun gear boss portions the boss portions, being formed with the sun gear as one piece. It also includes a least one planetary gear assembly which is comprised of a planetary gear ring meshed with the sun gear two unitary, planetary discs each having an outer thrust projection which is in at least intermittent rolling contact with the sun gear boss portions and which each have an inwardly-projecting boss supporting the inner surface of the planetary gear ring and sandwiching the planetary gear ring therebetween and a planetary, shaft for …
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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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
- 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.