Wall-breaching apparatus
CA 1301541 C · Owner: Gibb, Allan W.M. · Inventors: Chadwick, Dennis P.; Bauer, A. William; Gartner, Hans R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A novel wall breaching apparatus may be constructed with sufficiently small weight and dimensions that it is effectively portable, while being sufficiently energetic to breach a thick wall. The apparatus consists of a number of similar panels each, including a matrix and a linear shaped charge embedded in the matrix. Each end of the charge is located adjacent an edge of the panel. The panels are configured to be assembled edge to edge in an open condition with the linear shaped charges arranged end to end, or face to face in a closed condition with the linear shaped, charges on the inside of the assembly. Thus the apparatus may be, collapsed to the closed position for storage and transport …
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.