Photopyrotechnical detonation device and photopyrotechnical chain using this device
CA 1324733 C · Owner: Carel, Claude · Inventors: Carel, Claude; Josse, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A photopyrotechnical detonating device and a photopyrotechnical chain using this device are disclosed. A pyrotechnical charge, which can be actuated by a laser beam, is placed in a solid body. The beam is conveyed by an optical fiber which penetrates a connector mounted on the body. The beam, which is divergent when it leaves the fiber, is made parallel by a first lens. A second lens mounted on the body, makes the beam converge and works with a transparent barrier to focus the beam on a given point. Tight-sealing means are provided between the transparent barrier and the body of the device, thus ensuring the containment of the charge.
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 November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
- 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.