US4847592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection plate having pin-shaped attachment means
Assignee: Nederlandsche Apparatenfabriek NEDAP NV
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Filing: 1988-02-12
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Granted: 1989-07-11
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Expires: 2008-02-12
Abstract
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.
Inventors
- 👤 Johannes H. L. Hogen Esch
- 👤 Hendrik J. de Jong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:08
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; G08B13/24; G08B13/2402; G08B13/2405; G08B13/2414; E; E05; E05B; E05B73/00; E05B73/0017; G08B13/2417; G08B13/2422; G08B13/2425; G08B13/2428; G08B13/2431; G08B13/2434; G08B13/2437; G08B13/2442; E05B45/00; E05B45/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
104 words
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.
Claim 2
Dependent Claim
104 words
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.
Claim 3
Dependent Claim
13 words
The detection plate as claimed in claim 1, wherein said pin is hollow.
Claim 4
Dependent Claim
28 words
The detection plate as claimed in claim 1, wherein said pin includes adjacent to its point a portion of reduced diameter arranged to cooperate with a retaining means.
Claim 5
Dependent Claim
69 words
The detection plate as claimed in claim 3, wherein the retaining means comprises a stretchable cup-shaped member with a pierced bottom contiguous with a short tubular part which in turn is contiguous with a flange which, in use, is in contact with the ear, the tubular part being, in use, housed in the portion of the pin of reduced diameter and anchored by means of a metal shrunk-on ring.
Claim 6
Dependent Claim
29 words
The detection plate as claimed in claim 1, wherein the electronic circuit is arranged so that the interruption of the electrical conductor prevents further activation of the electronic circuit.
Claim 7
Dependent Claim
53 words
The detection plate as claimed in claim 1, wherein the electronic circuit is an identification circuit which when activated will generate a code signal corresponding to the pre-determined signal, and the electronic circuit is arranged so that the interruption of the electrical conductor will result in a changed code of the code signal.
Claim 8
Dependent Claim
100 words
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.
Claim 9
Dependent Claim
100 words
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.
Claim 10
Dependent Claim
33 words
The detection plate as claimed in claim 7, wherein, on the side of the frangible strip away from the ball holder, the detection plate has a recess in alignment with said ball holder.
Claim 11
Dependent Claim
29 words
The detection plate as claimed in claim 7, wherein the electronic circuit is arranged so that the interruption of the electrical conductor prevents further activation of the electronic circuit.
Claim 12
Dependent Claim
53 words
The detection plate as claimed in claim 7, wherein the electronic circuit is an identification circuit which when activated will generate a code signal corresponding to the predetermined signal, and the electronic circuit is arranged so that the interruption of the electrical conductor will result in a changed code of the code signal.
Claim 13
Dependent Claim
73 words
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.
Claim 14
Dependent Claim
73 words
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.
References Cited (Backward Citations)
US3713133A
Cited
US4742341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |