Disposable anti-tamper conductive plastic band for re-usable RFID tag

{
  "publication_number": "US9875628B2",
  "country": "US",
  "kind": "B2",
  "title": "Disposable anti-tamper conductive plastic band for re-usable RFID tag",
  "abstract": "A disposable electrically conductive band for a re-usable RFID tag having an RFID tag holder, an electrical continuity contact within a loop on an end of the band, an electrically conductive landing area on a tongue of the band, the tongue being insertable through the loop to secure the band around a body to be monitored by an RFID system, the tongue thereby engaging a portion of the landing area with the electrical continuity contact. The conductive landing area has a series of electrical continuity dimples in each of which there is an electrical contact to an electrical pathway around the electrically conductive band. The RFID tag transmits an alarm to the monitoring agency whenever the band has been tampered with, severed, or otherwise circumvented.",
  "claims": [
    "1. An electrically conductive band for an RFID tag having: a) an RFID re-usable tag holder; b) an electrical continuity contact within a loop on an end of the electrically conductive band; c) an electrically conductive landing area on a tongue of the band; the tongue being insertable through the loop to secure the band around a body to be monitored by an RFID system, the tongue thereby engaging a portion of the electrically conductive landing area with the electrical continuity contact, in which the loop and the tongue have an interlocking structure of pins and dimples respectively in which the interlocking structure has one-way bevels to form a ratchet mechanism during attachment of the electrically conductive band to an object or a patient, in order to allow easy attachment yet prevent accidental loosening of the band once when it is attached.",
    "2. The electrically conductive band for an RFID tag of claim 1, in which the loop and the tongue have anti-tamper pin and corresponding anti-tamper dimple one-way bevels, and electrical continuity pin and corresponding electrical continuity dimples with one-way bevels, to form a ratchet mechanism during attachment of the electrically conductive band to an object or a patient, in order to allow easy attachment yet prevent accidental loosening of the band once when it is attached.",
    "3. The electrically conductive band for an RFID tag of claim 1, in which the RFID tag holder has a loop tag electrical contact and a band tag contact.",
    "4. The electrically conductive band for an RFID tag of claim 3, further comprising an RFID tag having a complementary couple of RFID electrical contacts, each joined with an electrical current detector in the RFID tag.",
    "5. The electrically conductive band for an RFID tag of claim 4, in which the complementary couple of RFID electrical contacts are located on the RFID tag such that when the RFID tag is inserted in the RFID holder, the RFID electrical contacts make electrical contact with the loop tag electrical contact and the band tag contact respectively.",
    "6. The electrically conductive band for an RFID tag of claim 5, in which an electrically conductive circuit is formed when the RFID tag is placed in the RFID holder and the electrically conductive band is attached to a patient or an object by having the tongue passed through the loop.",
    "7. The electrically conductive band for an RFID tag of claim 6, in which there is a non-conductive outer shell between electrically conductive dimples on the landing area of the tongue that causes an interruption of electrical current flow when the electrical continuity pin passes from one continuity dimple to another upon the band being loosened after attachment.",
    "8. The electrically conductive band for an RFID tag of claim 7, in which the electrical current detector senses a lack of electrical continuity when the electrical continuity pin passes from one continuity dimple to another upon the band being loosened after attachment and signals a tamper alarm condition.",
    "9. The electrically conductive band for an RFID tag of claim 6, in which the electrical current detector senses a lack of continuity when the RFID tag is removed from the RFID tag holder causing the RFID tag to signal a tamper alarm condition.",
    "10. The electrically conductive band for an RFID tag of claim 1, in which the electrically conductive band comprises electrically conductive plastic.",
    "11. The electrically conductive band for an RFID tag of claim 4, in which the RFID electrical contacts are made of hard conductive plastic and shaped to provide a tight fit within the RFID holder and a water-proof transition between electronic circuitry inside the RFID tag and an RFID tag enclosure.",
    "12. The electrically conductive band for an RFID tag of claim 10, in which the electrical conductive band comprises soft conductive plastic to provide flexibility and comfort of fit of the electrically conductive band on a patient.",
    "13. An electrically conductive band for an RFID tag having: a) an RFID tag holder; b) an electrical continuity contact within a loop on an end of the electrically conductive band; c) an electrically conductive landing area on a tongue of the band; the tongue being insertable through the loop to secure the band around a body to be monitored by an RFID system, the tongue thereby engaging a portion of the electrically conductive landing area with the electrical continuity contact, in which an electrically conductive circuit is formed when the RFID tag is placed in the RFID tag holder and the electrically conductive band is attached by having the tongue passed through the loop, and an electrical current detector senses a lack of continuity, when the RFID tag is removed from the RFID tag holder or the band is cut, causing the RFID tag to signal a tamper alarm condition; d) the electrical continuity contact within the loop is a continuity pin shaped to fit within a continuity dimple in the electrically conductive landing area on the tongue; e) the tongue has a series of anti-tamper dimples and the loop has an anti-tamper pin shaped to fit within an anti-tamper dimple in the tongue; f) there is a series of pairs of anti-tamper dimples, with a continuity dimple between each pair, and in which the loop has a corresponding pair of anti-tamper pins, with an electrical continuity pin between the pair of anti-tamper pins; g) the loop and the tongue have anti-tamper pin and corresponding anti-tamper dimple one-way bevels, and electrical continuity pin and corresponding electrical continuity dimples with one-way bevels, to form a ratchet mechanism during attachment of the electrically conductive band to an object or a patient, in order to allow easy attachment yet prevent accidental loosening of the band once when it is attached.",
    "14. The electrically conductive band for an RFID tag of claim 13, in which: a) the electrically conductive band comprises an electrically conductive plastic core within a non-conductive shell to prevent “alligator-clip” circumvention of tamper alarms; b) there is a non-conductive outer shell between electrically conductive dimples on the landing area of the tongue that causes an interruption of electrical current flow when the electrical continuity pin passes from one continuity dimple to another upon the band being loosened after attachment whereby the electrical current detector senses a lack of electrical continuity when the electrical continuity pin passes from one continuity dimple to another upon the band being loosened after attachment and signals a tamper alarm condition; c) the RFID electrical contacts are made of hard conductive plastic and shaped to provide a tight fit within the RFID holder and a water-proof transition between electronic circuitry inside the RFID tag and an RFID tag enclosure; d) the electrically conductive band is thinner in a middle portion of its length in order to increase its overall flexibility and comfort around a patient's wrist and is thicker toward each of its ends in order to ensure the tongue can be inserted through the loop and to provide additional strength where attached via the tongue and loop.",
    "15. The electrically conductive band for an RFID tag of claim 13, the RFID tag holder having a loop tag electrical contact and a band tag contact, and further comprising an RFID tag having a couple of RFID electrical contacts each joined with an electrical current detector in the RFID tag, the couple of RFID electrical contacts being located on the RFID tag such that when the RFID tag is inserted in the RFID holder, the RFID electrical contacts make electrical contact with the loop tag electrical contact and the band tag contact respectively, by which an electrically conductive circuit is formed when the RFID tag is placed in the RFID holder and the electrically conductive band is attached to a patient or an object by having the tongue passed through the loop, and by which the electrical current detector senses a lack of continuity when the RFID tag is removed from the RFID tag holder causing the RFID tag to signal a tamper alarm condition, in which: a) the electrically conductive band comprises an electrically conductive plastic core within a non-conductive shell to prevent “alligator-clip” circumvention of tamper alarms; b) there is a non-conductive outer shell between electrically conductive dimples on the landing area of the tongue that causes an interruption of electrical current flow when the electrical continuity pin passes from one continuity dimple to another upon the band being loosened after attachment whereby the electrical current detector senses a lack of electrical continuity when the electrical continuity pin passes from one continuity dimple to another upon the band being loosened after attachment and signals a tamper alarm condition; c) the RFID electrical contacts are made of hard conductive plastic and shaped to provide a tight fit within the RFID holder and a water-proof transition between electronic circuitry inside the RFID tag and an RFID tag enclosure; d) the electrically conductive band is thinner in a middle portion of its length in order to increase its overall flexibility and comfort around a patient's wrist and is thicker toward each of its ends in order to ensure the tongue can be inserted through the loop and to provide additional strength where attached via the tongue and loop, e) the electrically conductive band has a curved section bending from the RFID tag enclosure to position the electrically conductive band closer to a patient's wrist to which it is attached; f) the RFID tag holder has an opening into which an RFID tag is placed prior to attachment to a patient's wrist, with the electrically conductive band and a base portion of the RFID holder securing the RFID tag within the holder and against the patient wrist after attachment of the electrically conductive band around a patient's wrist.",
    "16. An electrically conductive band for an RFID tag having: a) an RFID tag holder; b) an electrical continuity contact within a loop on an end of the electrically conductive band; c) an electrically conductive landing area on a tongue of the band; the tongue being insertable through the loop to secure the band around a body to be monitored by an RFID system, the tongue thereby engaging a portion of the electrically conductive landing area with the electrical continuity contact, in which an electrically conductive circuit is formed when the RFID tag is placed in the RFID tag holder and the electrically conductive band is attached by having the tongue passed through the loop, and an electrical current detector senses a lack of continuity, when the RFID tag is removed from the RFID tag holder or the band is cut, causing the RFID tag to signal a tamper alarm condition; the RFID tag holder having a loop tag electrical contact and a band tag contact, and further comprising an RFID tag having a couple of RFID electrical contacts each joined with an electrical current detector in the RFID tag, the couple of RFID electrical contacts being located on the RFID tag such that when the RFID tag is inserted in the RFID holder, the RFID electrical contacts make electrical contact with the loop tag electrical contact and the band tag contact respectively, by which an electrically conductive circuit is formed when the RFID tag is placed in the RFID tag holder and the electrically conductive band is attached to a patient or an object by having the tongue passed through the loop, and by which the electrical current detector senses a lack of continuity when the RFID tag is removed from the RFID tag holder causing the RFID tag to signal a tamper alarm condition."
  ],
  "description_excerpt": "The disclosed invention relates to the use of radio frequency identification (“RFID”) tags to restrict people and objects within a designated perimeter, and more particularly to an RFID tag which transmits an alarm to the monitoring agency whenever the attached tag has been tampered with, severed, or otherwise circumvented.\n\nRFID tags can be used to control the movement of people within a designated perimeter. Examples of such use include infant or pediatrics patient protection in a care facility, elder-care wander prevention, or house arrest enforcement where a tagged person is restricted to a monitored area. Effective perimeter restriction is only possible if an alarm is generated when the tag is removed from a monitored person's body.\n\nExisting RFID tag-bands employ a variety of methods to maintain continuity, including embedding conductive traces within or through the band, using a band made entirely of electrically conductive material, optical signal transmission through the optically conductive band, optically conductive fiber(s) embedded within the band, and electromagnetic or capacitive coupling between the band and the tag.",
  "cpc": [
    "G08B 13/2434",
    "G01V 15/00",
    "G08B 13/06",
    "G08B 21/02",
    "G08B 21/22"
  ],
  "ipc": [
    "G01V 15/00",
    "G08B 13/06",
    "G08B 13/24",
    "G08B 21/02",
    "G08B 21/22"
  ],
  "assignees": [
    "Guard RFID Solutions Inc"
  ],
  "inventors": [
    "Dalibor Pokrajac",
    "Bazlul Karim"
  ],
  "filing_date": "2013-04-02",
  "publication_date": "2018-01-23",
  "grant_date": "2018-01-23",
  "priority_date": "2012-03-30",
  "application_number": "US-201314389547-A",
  "family_id": "49258023",
  "cited_by_count": 10,
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}