Blocking-up wedge
CA 1072942 A · Owner: Jensen, Karsten · Inventors: Jensen, Karsten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blocking-up wedge of the kind used in pairs for the levelling of joists each wedge consisting of a prismatic-shaped body the terminal surfaces of which being triangles, with at least one wedge surface offering a relatively great friction between the wedges, thereby preventing the mutual displacement of the wedges which would reduce the distance between the parallel supporting surfaces of the pair of wedges. The wedge is also provided with a profiling of at least a section of the inclining wedge surface causing a hampering or in practice a prevention of mutual displacement of the two interacting wedges in the direction parallel with the opposing edge of the face.
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 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 1997.
- 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.