Linear actuation roller bearing nut
CA 2116879 C · Owner: Stanley, Richard B. · Inventors: Stanley, Richard B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for converting rotational motion of a threaded shaft to linear motion in parallelism with the shaft and having a high load carrying capacity and operating efficiencies that are on the order of 98 percent (98%) with the device, including a roller bearing nut for the shaft that is arranged to provide a linear motion unit (for the device) and a housing annular structure arranged to be fixed from rotation and including a plurality of circularly and concavely shaped thrust teeth of essentially "V" configuration 360 degrees (360°) thereabout of which such, thrust teeth are of identical size and configuration and are disposed in coaxial sideby-side relation normally of the desired …
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 March 3, 1994 and granted May 20, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2016.
- 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.