Incrementally variable single countershaft transmission
CA 1209376 A · Owner: Kerr, John H. · Inventors: Kerr, John H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
a) Title, Incrementally Variable Single Countershaft Transmission. b) Abstract of the Disclosure Incrementally Variable Transmissions with single countershaft structures, and series structures that combine two or more single countershaft structures are disclosed herein. A single countershaft structure consists of coaxially mounted input and and output shafts, with one gear element in each pair of a sequence of gear-pairs fixed to the countershaft with the second gear, element of the first two pairs free to rotate on the input shaft and, the remaining second gear elements free to rotate on the output shaft. The ratios of the 1st and 2nd pair are referenced from the input to the countershaft …
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
- Granted August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
- 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.