Power transmission and planetary gear drive system
CA 2114807 C · Owner: Mtd Products Inc. · Inventors: Vogt, Kurt E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pivotable actuator for changing the condition of a mechanical power transmission system between neutral engaged, and disengaged states. The transmission system comprises rotary shafts each having a clutch mechanism and a clutch actuator for engaging and disengaging the clutch mechanism. A bearing device disposed about the shafts is moved by a shift mechanism to drive the clutch actuator between the different states. In an alternative embodiment relating to an aligned shaft drive system, the clutch actuator shifts a gear drive system from an engaged condition to a neutral condition and then to a braked condition.
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 February 2, 1994 and granted December 9, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2016.
- 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.