Screw and nut device for taking up clearance
CA 1289774 C · Owner: Chevance, Claude · Inventors: Chevance, Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device comprising a screw and a nut subjected to an axial force which alternates in opposite directions the thread of, the screw having a given helix angle and a given pressure angle which are so chosen that, in a first direction termed, reversible direction, the screw is capable under the axial, thrust exerted in this direction by a spring of effecting a, translation and a rotation in the nut and that, in a second, direction, termed irreversible direction opposed to the first, direction, the screw undergoing an axial thrust in this second direction by a push-member, can effect neither a translation nor a rotation in the nut. This assembly may be applied to the automatic taking up of play …
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 October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
- 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.