Foamable explosive combinations
CA 1308914 C · Owner: Explosive Developments Limited · Inventors: Shann, Peter C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
The invention relates to a foamable explosive combination comprising a so called "liquid" explosive conveniently an, oxidizing salt or salt-saturated aqueous composition with a low, boiling point liquid dispersed through the combination. The low boiling point liquid is selected to maintain its liquid form at normal temperature and elevated pressure and to vaporize at atmospheric temperature and pressure. When packaged in a container part of the low boiling point liquid or a second low, boiling point liquid, vaporizes to maintain at least part of the first low boiling point liquid in liquid form within the combination and in such a state the combination is stable and has a relatively long …
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 October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 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.