Patent US3557758A successfully refreshed from Google Patents.
US3557758A
Expired / Lapsed
US
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Animal identification and feed control means
Assignee: Teledictor Ltd
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Filing: 1969-05-07
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Granted: 1971-01-26
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Expires: 1989-05-07
Abstract
Abstract The invention is concerned with the electronic identification of an animal such as a cow in a stall in order to enable the milk yield from the cow to be entered in a record as the milk yield of that particular cow and also to enable the appropriate predetermined quantity of feed concentrate required by that particular cow to be fed to it. A plurality of signals at discrete frequencies are transmitted from a transmission means to a receiving means in the vicinity of the stall and the cow to be identified is equipped with a tuned circuit or tuned circuits tuned to one or more of the said discrete frequencies so that the presence of this particular cow alters the transmitted signal strength at the corresponding frequencies and thus enables the cow to be identified.
Inventors
- 👤 Keith Malcolm Lack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:39
CPC Classifications
A; A01; A01K; A01K11/00; A01K11/006; A01J; A01J5/00; A01J5/04; G; G07; G07C; G07C9/00; G07C9/20; G07C9/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
An arrangement for use in the identification of animals, comprising means associated with at least one feed stall for transmitting and receiving a signal constituted by a plurality of discrete frequencies, means for dividing the received signal into components corresponding to each of the discrete frequencies, passive resonant circuit means carried by certain animals that are freely movable as in a herd and being resonant at one or more of the discrete frequencies, and means for detecting a change of magnitude in each such component of the received signal in response to an approach to the stall of an animal to be identified.
Claim 2
Dependent Claim
103 words
An arrangement for use in the identification of animals, comprising means associated with at least one feed stall for transmitting and receiving a signal constituted by a plurality of discrete frequencies, means for dividing the received signal into components corresponding to each of the discrete frequencies, passive resonant circuit means carried by certain animals that are freely movable as in a herd and being resonant at one or more of the discrete frequencies, and means for detecting a change of magnitude in each such component of the received signal in response to an approach to the stall of an animal to be identified.
Claim 3
Dependent Claim
86 words
An arrangement for use in the identification of animals as claimed in claim 1 in which the means for receiving said signal is arranged in a null relationship with the transmitted signal such that in the absence of any animal to be identified the received signal strength is substantially zero, in combination with passive resonant circuit means associated with certain of the animals to be identified disturbing the null relationship for its particular resonant frequency and therebY providing a substantial received signal strength at that frequency.
Claim 4
Dependent Claim
30 words
An arrangement for use in the identification of animals as claimed in claim 1 in which the means for transmitting a signal comprises a coil wound around a ferrite rod.
Claim 5
Dependent Claim
42 words
Apparatus for use in the identification of animals as claimed in claim 1 in which the means for transmitting a signal and the means for receiving said signal are together constituted by the primary and secondary windings of a loosely coupled transformer.
Claim 6
Dependent Claim
72 words
An arrangement for use in the identification of animals as claimed in claim 1 in which the magnitude of each component of the received signal is compared with a reference level derived from the signal supplied to the primary winding such that the presence of a passive resonant circuit resonant at a particular frequency is indicated by a difference between the reference signal and the received signal level associated with that frequency.
Claim 7
Dependent Claim
43 words
A cow identification and feed control arrangement incorporating an identification arrangement as claimed in claim 1 in combination with means for supplying a controlled quantity of feed concentrate to the identified cow in dependence upon a desired feed quantity selected for that cow.
Claim 8
Dependent Claim
38 words
An identification and feed arrangement for use in the controlled feeding of animals as claimed in claim 1 incorporating means for measuring and recording the milk yield of the cow identified in conjunction with information identifying that cow.
Claim 9
Dependent Claim
44 words
An identification arrangement for use in the controlled feeding of animals as defined in claim 1 wherein the transmitting and receiving means are mounted on opposite sides of a feed stall and the passive resonant circuits are located on the neck of each animal.
Claim 10
Dependent Claim
136 words
An arrangement for use in the identification of animals comprising means for generating a signal constituted by a plurality of discrete frequencies, a plurality of animals to be identified each associated with at least one passive circuit resonant at one or more of the discrete frequencies carried by certain animals that are freely movable as in a herd, means for changing the magnitude of one or more frequency components of said signal in response to the presence of an animal to be identified in the field of said signal, means for dividing the changed signal into components corresponding to each of the discrete frequencies and means for detecting a change of magnitude in each component of the changed signal in response to the presence of an animal to be identified in the field of said signal.
Claim 11
Dependent Claim
136 words
An arrangement for use in the identification of animals comprising means for generating a signal constituted by a plurality of discrete frequencies, a plurality of animals to be identified each associated with at least one passive circuit resonant at one or more of the discrete frequencies carried by certain animals that are freely movable as in a herd, means for changing the magnitude of one or more frequency components of said signal in response to the presence of an animal to be identified in the field of said signal, means for dividing the changed signal into components corresponding to each of the discrete frequencies and means for detecting a change of magnitude in each component of the changed signal in response to the presence of an animal to be identified in the field of said signal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |