One piece track pin
CA 1085898 A · Owner: Caterpillar Tractor Co. · Inventors: Hakkenberg, Peter; Livesay, Richard E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An endless track assembly for a track-type vehicle comprises an articulated chain for pivotally connecting each pair of adjacent track shoes together. Each articulated joint of the chain comprises a one-piece pin having a pair of laterally spaced pin portions and a bushing portion disposed intermediate the pin portions. A pair of first links are secured to the pin portions and a pair of second links are pivotally mounted on the pin portions. An annular seal is disposed between each adjacent pair of first and second links and a snap ring is secured to an outer end of each of the pin portions to prevent axial displacement of the links. A cavity is defined in the pin …
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 September 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 1997.
- 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.