Telescopic triplan universal joint
CA 2028941 A1 · Owner: Schmidt, Michael J. · Inventors: Schmidt, Michael J.; Fillmore, Francis L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A telescopic triplan universal joint having an inner joint member and an outer joint member. The outer joint member has three longitudinal chambers equally spaced about an axis of rotation. Each chamber has a pair of face-to-face longitudinal guideways. The inner joint member has three trunnions which radially extend into the three longitudinal chambers. Each longitudinal guideway is rollingly engaged by a planar roller bearing which is movable therealong. A movable race is disposed between each planar roller bearing and the trunnion extending into its associated chamber. The movable race has a flat surface engaging the planar roller bearing a concave trunnion seat mating with the spherical …
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 October 30, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2012.
- 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.