Method of making a flexible closure incorporating an alarm system
First Claim
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1. An alarm system for deterring unauthorized access to an area, comprising:
- a matrix of fibre material interlaced with a conductive sensing element forming a closure for said area, the conductive sensing element being knitted or crocheted integrally with the fibre material of the matrix;
the interlaced conductive sensing element providing a network over at least part of the closure; and
alarm means connected in a circuit with said sensing element for providing an alarm in response to disturbance of the closure by disturbance of the conductive sensing element in the circuit.
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Abstract
A flexible closure, for use in an alarm system is provided in which a conductive sensing element is interlaced with fiber matrix material to provide a network over at least part of the closure. The interlacing is preferably by means of knitting a conductive wire together with a yarn which forms the matrix of the closure. The closure may further include a protective outer layer on one or both faces of the closure.
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11 Claims
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1. An alarm system for deterring unauthorized access to an area, comprising:
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a matrix of fibre material interlaced with a conductive sensing element forming a closure for said area, the conductive sensing element being knitted or crocheted integrally with the fibre material of the matrix; the interlaced conductive sensing element providing a network over at least part of the closure; and alarm means connected in a circuit with said sensing element for providing an alarm in response to disturbance of the closure by disturbance of the conductive sensing element in the circuit.
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2. A closure, for use in an alarm system comprising:
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a flexible cover member for at least partially enclosing an area to be protected; the cover member comprising a matrix of fibre material interlaced with a conductive sensing element; the conductive sensing element being knitted or crocheted integrally with the fibre material of the matrix and comprising means for providing a network over at least part of the closure for connection in an alarm circuit for sensing disturbance of the closure. - View Dependent Claims (3, 4, 5, 6)
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- 7. A method of making a closure for incorporation in an alarm system the method comprising interlacing a conductive sensing element with material forming the matrix of the closure so that the interlaced conductive sensing element provides a network over at least part of the closure characterised in that the conductive sensing element is knitted or crocheted integrally with fibre material of the matrix during formation of the matrix of the closure.
Specification