Dropweight sample tester
CA 1077295 A · Owner: Steel Company Of Canada · Inventors: Kelly, John H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a process and, apparatus for determining the energy absorbed by a test-piece of material during its fracture. The testpiece is supported horizontally between two separated anvils, and a dropweight is released from a position above the test-piece so that the same can be struck and fractured. Means are provided for determining by, measuring a determining characteristic of the motion of the dropweight after the test-piece has been fractured the theoretical height from which the dropweight would have had to be released in order to have that postfracture motion if the test-piece had not been in the way. The difference between this calculated theoretical height and the …
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
- Granted May 13, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 1997.
- 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.