Free spinning laminated nut with automatic lock
CA 1251347 A · Owner: Reynolds, Richard L. · Inventors: Reynolds, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a caged nut comprised of stacked-conical spring segments that automatically and positively self-locks when tightened to a selected pre-loading, without adjustment. The nut is free running until seated, and the automatic lock mechanism ratchets freely with respect to the cage while the nut is being run down to its sealed position. Reverse rotation of the cage is prevented, however. A ratcheting element in the automatic lock mechanism allows the nut to be tightened by free rotation in the "on" direction but the ratchet prevents rotation in the "off" direction. At whatever value of preload desired, the nut is tightened to the extent necessary to provide that pre-load and …
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 March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- 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.