Track-type vehicle wheel cleaning apparatus
CA 1101911 A · Owner: Caterpillar Tractor Co. · Inventors: Christensen, Jon C.; Boggs, Roger L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A wheel has a hub and a rim connected to the hub. Teeth are positioned on the outer surface of the rim and arcuately spaced one from the other by a root area. The root areas have an outer periphery and define a root diameter. The wheel has an annular opening in communication with said outer periphery of the root areas. A hoop having an outside diameter greater than the root diameter is positioned in the annular opening for movement in response to operation of the wheel and cleaning of material from the root areas in response to the movement.
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 26, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 1998.
- 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.