Multicapstan traction unit
CA 1078367 A · Owner: Wharton Engineers (Elstree) Limited · Inventors: Alexander, William; Hicks, Raymond J.; Webb, John T. H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The traction unit comprises tuo pairs or sets of two or more capstans. The capstans of each pair or set have a common axis and the axes of each pair or set are in spaced apart parallel relationship. One of the capstans of each pair or set is larger in diameter than the other or one of the other capstans of the respective pair or set of capstans. Cycloidal gears, preferably an epicycloidal gear drive, is provided between the capstans of each pair or at least two of the capstans of each respective set with one of the capstans of one pair or set being strapped to a capstan of the other pair or set of capstans or a differential coupling/load-power transmission is pro~ided between a capstan of …
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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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.