A reversible track link for an endless track
CA 2227717 A1 · Owner: Umbarger, Daryl · Inventors: Umbarger, Daryl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reversible endless track 10 engages a drive sprocket 12 and track rollers 14 of a track type vehicle. The endless track 10 has a plurality of track link assemblies 16 that includes a symmetrical track link 20, wear bars 22 with rail surfaces 24 and track, shoes 26. The track link has a central relief port 30. An upper and lower wear bar 22 are slidably mounted onto the upper and lower surfaces 32 and 34 of the track link forming a mortise joint 50. A pair of plow bolts 54 pass through a respective aperture 56 in the wear bar 22 and extend through the entire assembly. The bolts have extending threaded ends 55 that engage an acorn nut 60 in its threaded receptacle 62 to affix track shoe 26 …
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
- Filed January 22, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2020.
- 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.