Collar for measuring the lateral deformation of a test piece during compression tests, such as uniaxial or triaxial compression tests
CA 2608980 C · Owner: Secq, Jean · Inventors: Secq, Jean
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 collar (1) for measuring lateral deformation of a test piece during uniaxial or triaxial compression tests. According to the invention the collar comprises a metal hoop (2) or a hoop that is made from composite materials which can clasp the test piece and which is open the free ends thereof being separated by a distance .DELTA.. The inventive collar is also equipped with means (5) for directly or indirectly measuring the distance .DELTA. between the free ends (3) of the hoop (2) said means comprising a linear variable differential transformer-type probe (6). The invention also relates to a protective sleeve for the test piece which can co-operate with the collar.
Read the whole patent
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 22, 2006 and granted August 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.