EDGE ON FOAM TAGS

• US 20160172742A1
• Filed: 12/10/2014
• Published: 06/16/2016
• Est. Priority Date: 12/10/2014
• Status: Active Grant

• Current Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Original Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Inventors: FORSTER, Ian James
• Granted Patent: US 10,665,921 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06K 19/07771 the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
• CPC Class Codes: G08B 13/2428 Tag details
• CPC Class Codes: H01Q 1/2208 associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems methods or arrangements for sensing record carriers, e.g. for reading patterns G06K7/00; record carrier for use with machines and with at least a part designed to carry digital markings G06K19/00
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142

Abstract

An RFID antenna structure is disclosed that is designed to operate in proximity to metal surfaces. The RFID antenna structure is placed at 90 degrees to the surface of the metallic object, allowing it to operate with minimal separation from the edge of the RFID antenna structure to the metallic object. In another embodiment, the RFID antenna structure comprises an anti-tamper embodiment wherein a RFID tag device is applied to twist and flip-top cap containers, such that tearing along the perforations on the cap disables the RFID tag device.

Claims

1. A RFID antenna structure designed to operate in proximity to conductive surfaces, comprising:

an RFID inlay;

a pair of plastic layers; and

a metal layer; and

wherein the RFID inlay is sandwiched between the pair of plastic layers; and

wherein the RFID inlay is positioned 90 degrees to the metal layer, allowing the RFID antenna structure to operate with minimal separation from an edge of the RFID inlay to the metal layer.

2. The RFID antenna structure of claim 1, wherein the RFID inlay is linear and incorporated into a protective plastic layer by extrusion, wrapped in a number of shapes, wrapped around a form and placed in a cavity, or incorporated into a structure by injection molding.

3. A RFID antenna structure designed to operate in proximity to conductive surfaces, comprising:

an RFID inlay;

a plastic layer; and

a metal layer; and

wherein the RFID inlay is extruded into the plastic layer; and

wherein the RFID inlay is positioned 90 degrees to the metal layer, allowing the RFID antenna structure to operate with minimal separation from an edge of the RFID inlay to the metal layer.

4. A RFID antenna structure designed to operate in proximity to conductive surfaces, comprising:

an RFID inlay;

a plastic component; and

a metal layer; and

wherein the RFID inlay is wrapped in spiral form around the plastic component; and

wherein the RFID inlay is positioned 90 degrees to the metal layer, allowing the RFID antenna structure to operate with minimal separation from an edge of the RFID inlay to the metal layer.

5. A tamper evident RFID antenna structure for twist and flip-top cap containers, comprising:

a label positioned over the twist cap and over the container;

an RFID inlay positioned over the container; and

a perforation strip engineered over the label and the RFID inlay;

wherein twisting of the cap to expose a container opening, propagates tearing in and along the perforation strip and across and down through the label and the RFID inlay on the container, disabling the RFID inlay.