Reinforcing member for a grouted anchor
CA 1185452 A · Owner: Dyckerhoff & Widmann Aktiengesellschaft · Inventors: Richartz, Erich; Majewski, Martin; Kern, Georg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reinforcing member for use in a grouted anchor is an axially elongated steel rod with hot-rolled helically extending ribs formed on its outside surface. The ribs form a discontinuous helical thread onto which a connecting or anchoring member with a corresponding counter-thread can be attached. The rod has a circularly shaped outside surface with oppositely disposed axially elongated recesses formed in the outside surface and located between the adjacent ends of the discontinuous ribs. The recesses provide the rod with a necked-down cross-sectional appearance. Axially elongated tubular members are positioned within the recesses and the tubular members are dimensioned so that they do not …
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 April 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2002.
- 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.