Detection plate having pin-shaped attachment means
First Claim
1. A detection plate formed as an earmark and comprising an electronic circuit capable of being activated by a suitable interrogation field to generate a pre-determined signal, said plate also having pin-shaped attachment means arranged so that the unauthorized detachment of the attachment means results in the interruption of an electrical conductor forming part of said electronic circuit, and said attachment means including a pin integral with the plate and having a point which can be pushed through an ear and fastened on the other side of the ear, said pin including a conductive loop extending into the point and connected to said electronic circuit.
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Accused Products
Abstract
In a detection plate, an electronic circuit capable of being activated by a suitable interrogation field to generate a pre-determined signal is provided with pin-shaped attachment means arranged so that the unauthorized detachment of the attachment means results in the interruption of an electrical conductor forming part of said electronic circuit. In the embodiment the detection plate is an earmark for animals and the attachment means includes a pin integral with the plate. The pin has a point which can be pushed through an animal'"'"'s ear and the device can then be fastened on the other side of the ear. The pin includes a conductive loop which extends into the point and is connected to the electronic circiut of the plate.
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Citations
11 Claims
- 1. A detection plate formed as an earmark and comprising an electronic circuit capable of being activated by a suitable interrogation field to generate a pre-determined signal, said plate also having pin-shaped attachment means arranged so that the unauthorized detachment of the attachment means results in the interruption of an electrical conductor forming part of said electronic circuit, and said attachment means including a pin integral with the plate and having a point which can be pushed through an ear and fastened on the other side of the ear, said pin including a conductive loop extending into the point and connected to said electronic circuit.
- 7. A detection plate comprising an electronic circuit capable of being activated by a suitable interrogation field to generate a pre-determined signal, said plate also having pin-shaped attachment means arranged so that the unauthorized detachment of the attachment means results in the interruption of an electrical conductor forming part of said electronic circuit, and said attachment means comprising a headed pin having a shank capable of cooperating with a ball lock in the plate, the ball lock comprising a ball holder resting against a strip of frangible material with said electrical conductor being a conductive track provided on the frangible material.
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11. A detection plate comprising an electronic circuit capable of being activated by a suitable interrogation field to generate a pre-determined signal, said plate also having pin-shaped attachment means arranged so that the unauthorized detachment of the attachment means results in the interruption of an electrical conductor forming part of said electronic circuit, and the electronic circuit being arranged so that the interruption of the electrical conductor prevents further activation of the electronic circuit.
Specification