Dual path, dual range transmission
CA 1075038 A · Owner: Clark Equipment Company · Inventors: Frost, Barry L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual path, dual range transmission utilizes two simple planetaries with a sliding shaft shift wherein a first ring gear is in constant mesh with the first planet gear, the second ring gear is connected with the first carrier and the second ring gear is also in constant mesh with the second planet gear. A variable speed device drivingly connected with, the input shaft controllably varies the rotative speed of a variable speed control shaft which is connected with the first and second sun gears. The input shaft is also independently drivingly connected with the first ring gear and the second planet carrier with the output shaft, being connected with the first carrier. Means are provided 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 April 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 8, 1997.
- 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.