A method of determining the density profile of a plate-shaped material
CA 2192340 C · Owner: Wesser & Dueholm · Inventors: Dueholm, Sten; Teller, Steen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of, non-destructively, on-line determining the density, profile in a plate-shaped material with a density, which varies discretely or continuously over the, plate thickness while the, density at a specific depth of the plate is assumed to, be constant such as for, instance plates based on, wood by means of X-rays, or gamma rays from a source placed on one side, of the plate. Two detectors are placed on the other side, of the plate one detector, measuring in the emitting direction of the source and, the other detector measuring in the other direction and, being movable relative to the plate. The counting number, of the second detector is adjusted by means of the, counting number of …
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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 15, 1995 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2017.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.