Sprocket and hub assembly
CA 1057532 A · Owner: Mihalcheon, Arthur · Inventors: Mihalcheon, Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary assembly for example a sprocket wheel, rigidly connected to a rotary support member such as a hub, or shaft, is produced by punching axial grooves of limited length on the outer surface of the member from one end of the member. The material displaced from the grooves during punching flows toward the inner end of the grooves to form radially outwardly-directed lugs. The wheel has a central axial opening formed with radially inwardly-directed projects. When the member is located within the central opening, the projections mate with the grooves, the rear axial face of the wheel is seated against the lugs and the end face of the member projects axially in front of the front face of the …
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 July 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 3, 1996.
- 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.