Method and arrangement relating to a swing damper
CA 2375710 A1 · Owner: Jonsson, Anders · Inventors: Harr, Joakim; Jonsson, Christer; Jonsson, Anders
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an arrangement and to a method related to a swing damper, particularly to a swing damper (1) for supporting a tool (5) that hangs from a crane arm (2) or some similar structure. The swing damper (1) includes an upper part (11), which is connected to the crane arm (2) and a , lower part (12) that carries a work tool (5) or some similar device either directly or via a rotator (4) for instance. The upper part (11) and the lower part (12) are pivotally interconnected via a pivot joint (13) wherewith the , swing damper (1) includes a brake arrangement (50) in the form of a malefemale-cone arrangement. Either the upper part (11) or the lower part (12) carries two …
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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 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2022.
- 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.