Method and device for determining the degree of compaction during ground compaction
CA 2350260 A1 · Owner: Laugwitz, Niels · Inventors: Laugwitz, Niels
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and a device for determining the degree of compaction during ground compaction by means of a roller or a vibrating plate compactor, comprised of a top section and a vibrating plate. This involves determination of one or more amplitude values of the vibration at approximately the, excitation frequency of the plate relative to the top section and of one or , more, amplitude values of one or more vibrations of the plate relative to the top section at a, maximum of 60% of the excitation frequency and of the quotient of the, aforementioned amplitude values as a measure of the current degree of compaction of, the ground.
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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 June 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2023.
- 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.