Dual wheel for a vehicle
CA 1212400 A · Owner: Gebr. Schaad Landmaschinen · Inventors: Schaad, Fritz; Schaad, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spacer ring which has an indented reinforcement groove is fastened to the outer rim of a dual wheel of a vehicle. A fastening ring is welded to the inner surface of the reinforcement groove. The outer rim and the spacer ring are pressed against the vehicle wheel rim by a plurality of tensioning devices, which are suspended on the fastening ring. The outer wheel is placed against the vehicle wheel in any desired rotational position and coupled therewith with the aid of the tensioning devices the number of which is adapted to the load on the dual wheel. - 6 -
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 October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 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.