Contoured cable roller
CA 1136094 A · Owner: Caterpillar Tractor Co. · Inventors: Day, Ralph R.; Wulff, Bernard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Contoured Cable Roller, Abstract, A log skidder has a fairlead with a main guide roller having a special contoured surface to prevent grooving of the surface of the guide roller to prolong, cable life, and to assist in evenly winding the cable on a winch drum. The special contoured surface of the guide roller includes a pair of shaped or rounded shoulders at the side extremes which are aligned with the side rollers in a way that a cable passing over the main guide roller in contact with one of the side rollers receives a downward and inward centering force component which moves the cable toward the midportion of the main guide roller.
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 November 23, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1999.
- 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.