Frictional damper for damping movement of structures
CA 2446498 A1 · Owner: Mualla, Imad H. · Inventors: Mualla, Imad H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a damper and a method for protecting buildings and similar structural systems from dynamic loading such as loading caused by earthquakes strong winds or machine vibrations. More specifically the damper is made from , structural members being interconnected in frictional or visco-elastically dampened rotational joints. Due to the dampening of the joints relative , movement between the structural elements is dampened. In particular the , damper is useful for base isolation e.g. in order to allow a building or a machine to move in a dampened movement relative to its foundation or in order to allow a cable stay of a cable stay bridge to move in a dampened movement relative …
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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 May 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2024.
- 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.