Detonator
CA 1298972 C · Owner: Ici Australia Operations Proprietary Limited · Inventors: Mcgregor, Kevin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A detonator which does not utilize the traditional styphnate/azide primer and which does not require heavy and expensive confinement comprises a loose mixture of a high explosive and a finely-divided metal, the metal being present in the mixture to the extent of from 1%-5% by weight. The preferred high explosive is PETN and the preferred metal is paint-fine aluminium. The detonators may utilize the same shells as conventional styphnate/azide detonators and are as effective, but are safer to handle.
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.
Why it's free to use
- Granted April 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 21, 2009.
- 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.