Elastodynamic testing of elongate compressible material
CA 1290168 C · Owner: Wensel, Ronald G. · Inventors: Wensel, Ronald G.; Metcalfe, Raymond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides non-destructive testing of elongate compressible materials, and particularly to determine the elastodynamic properties of a material, and/or to detect defects such as nonuniformities in resilience or hardness subsurface as well as surface, defects such as inclusions voids, tears, and the like. The material to be tested is passed between two rollers to compress the material under predetermined operating conditions of substantially constant roller spacing or substantially constant compression load. Measurement of the load or the displacement for the selected operating condition of constant roller spacing or constant load, respectively, provides an indication 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
- Granted October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- 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.