Track adjuster and guard
CA 1114859 A · Owner: Caterpillar Tractor Co. · Inventors: Cline, Lawrence R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A track roller assembly including a track roller frame (12) defining a tunnel, a pair of spaced elonga-, ted rails (70, 72) extending through the tunnel a stop, (26) at one end of the tunnel, a spring recoil assembly (20) within the tunnel in abutment with the stop and supported by the rails and including a housing (28) containing a compression spring (30) and having an opening (32) opposite from the stop and a movable plate (36) accessible through the opening and abutting the spring, a hydraulic adjuster assembly (22) within the tunnel and supported by the rails in abutment with but not attached to the housing and including a closed hydraulic chamber (100) with a movable piston (104) …
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 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.