Method for making a hub of a spoke wheel
CA 1190271 A · Owner: Enco Miljo Forsaljning Ab · Inventors: Kjell, Sven-Inge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The hub of a spoke-wheel such as spoke-wheel for a wheelchair is produced by injection molding such that the central tubular part of the hub and the end flanges are injection molded from a suitable plastic material. The openings for retaining the ends of associated spokes are then machined, cut out or molten away in a subsequent step. Preferably the hub is produced from two halves interconnected at the center of the tubular central part. The advantage is in that no expensive injection molding tools are required such as those used in regular bicycle wheels which normally do not require considerations of axial pressures to which the hub is exposed quite frequently in the case of a wheelchair …
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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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
- 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.