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US 6,199,483 B1Granted
Optopyrotechnic demolition installation
AssigneeCardem Demolition S.A.
InventorRobert Patrick Barbiche
Life of this patent
Estimating the term…
Abstract
An installation formed of several independent groups is proposed to demolish structures such as buildings, bridges, materials, etc., in particular eliminating any risk of accidental firing. Each group comprises a control unit (10) with several outputs (18) including at least one laser source (16), pyrotechnic initiators (12) with optical control, and optical fibers (14) connecting the outputs (18) of the control unit (10) to the initiators (12). Laser sources (16) may be either laser diodes, or sources with a pumped solid rod operating in relaxed mode.
Claims9
A demolition installation comprising:
- at least two independent groups of demolition installation components, each including:
- a control unit including several outputs, a single laser source for each of said several outputs, and at least one control switch for each of said laser sources, said laser sources being a pumped solid rod operating in a relaxed mode such that closure of said control switches will cause said laser sources to emit a first laser beam for at least one of said several outputs;
- optically controlled pyrotechnic initiators placed at determined locations in a structure to be demolished;
- optical fibers connecting each of said pyrotechnic initiators to one of said several outputs of said control unit;
- a first optical divider coupler receiving a primary optical input, in a form of said first laser beam, emitted by said laser sources;
- a secondary optical input directing a second laser beam to penetrate said control unit;
- and
- first feedback means configured to direct said second laser beam from said secondary optical input to said primary optical input of said first optical divider coupler for said control unit;
- and
- an additional laser source common to all of said at least two independent groups, said additional laser source emitting said second laser beam to said secondary optical input.
7 more elements
A demolition installation comprising:
- at least two independent groups of demolition installation components, each including:
- a control unit having several outputs, at least one laser diode for each of said several outputs, and at least one control switch for each of said at least one laser diode, each of said laser diodes being optically connected to one of said several outputs and each of said laser diodes being installed in series with said control switches such that closure of said control switches will cause said laser diodes to emit a first laser beam toward each of said several outputs;
- optically controlled pyrotechnic initiators placed at determined locations in a structure to be demolished;
- optical fibers connecting each of said pyrotechnic initiators to one of said several outputs of said control unit.
1 more element
A demolition installation comprising:
- at least two independent groups of demolition installation components, each including:
- a control unit having several outputs, a laser diode for each of said several outputs, and at least one control switch for each of said laser diodes, said laser diodes being optically connected to one of said several outputs so that closure of said control switches will cause said laser diodes to emit a first laser beam toward at least one of said several outputs;
- optically controlled pyrotechnic initiators placed at determined locations in a structure to be demolished;
- and
- optical fibers connecting each of said pyrotechnic initiators to one of said several outputs of said control unit;
- and
- a common safety switch installed in series with all of said laser diodes in each of said control units.
4 more elements
A demolition installation comprising:
- at least two independent groups of demolition installation components, each including:
- a control unit having several outputs, a single laser diode for each output of said several outputs, and at least one control switch for each of said laser diodes, each of said laser diodes being optically connected to one of said several outputs, such that closure of said control switches will cause each of said laser diodes to emit a first laser beam toward at least one of said several outputs, and wherein said laser diodes form a matrix of a variable number of rows and columns, said laser diodes in each row being installed in series with a first control switch and outputs of said laser diodes in each column being connected to a second control switch;
- optically controlled pyrotechnic initiators placed at determined locations in a structure to be demolished;
- and
- optical fibers connecting each of said pyrotechnic initiators to one of said several outputs of said control unit.
2 more elements
Dependencies are inferred from the claim text.