EP0655719A2 - Antenna element for anti-theft devices - Google Patents
Antenna element for anti-theft devices Download PDFInfo
- Publication number
- EP0655719A2 EP0655719A2 EP94120246A EP94120246A EP0655719A2 EP 0655719 A2 EP0655719 A2 EP 0655719A2 EP 94120246 A EP94120246 A EP 94120246A EP 94120246 A EP94120246 A EP 94120246A EP 0655719 A2 EP0655719 A2 EP 0655719A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna element
- cover
- theft devices
- sleeve
- antennas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
- G08B13/2422—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using acoustic or microwave tags
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2428—Tag details
- G08B13/2434—Tag housing and attachment details
Definitions
- the invention relates to an antenna element for anti-theft devices of the type affecting a magnetic, acoustic or electromagnetic field, which is maintained between bow-shaped antennas at the exit of a shop, to disturb the field and cause signal generation.
- the antenna element of the invention has obtained the characteristics of claim 1.
- the anti-theft device in FIG. 1 comprises a sleeve 10 open at one end thereof, which has rectangular cross-sectional shape and preferably is made of plastics, for example polycarbonate. On one broad side thereof the sleeve is provided with a cover 11 of the same material as the sleeve, said cover being attached to the sleeve by ultrasound welding.
- the sleeve 10 has opposing longitudinal slots 12 in the two narrow sides thereof, which are big enough to allow the bow 14 of a spectacle frame 13 to be passed through the slots.
- Clamping means is provided in the sleeve 10, and the body formed by sleeve 10 and cover 11 is mounted to the bow, and is demounted from the bow by using a special tool, which can be engaged with said clamping means.
- an element 33 (a so-called “diode") of the type affecting a magnetic, acoustic or electromagnetic field maintained between bow-shaped antennas at the exit of a shop, to disturb the field and cause signal generation.
- Said element is mounted inside the cover 11, and for this purpose the cover has on the backside thereof four small pins 34 between which the element 33 is located while antenneas 35 of flexible wire provided on the element are passed around other, large pins 36 on the backside of the cover.
- the pins When the cover 11 is attached to the sleeve 10 the pins are positioned adjacent the outside surface of the sleeve such that the element is held in a well defined position.
- the antenna element of the invention formed by element 33 and antennas 35 has a configuration similar to the letter S when mounted to cover 11.
Abstract
Description
- The invention relates to an antenna element for anti-theft devices of the type affecting a magnetic, acoustic or electromagnetic field, which is maintained between bow-shaped antennas at the exit of a shop, to disturb the field and cause signal generation.
- The antenna element of the invention has obtained the characteristics of claim 1.
- In order to explain the invention in more detail an embodiment thereof will be described below reference being made to the accompanying drawing in which
- FIG. 1 is a fragmentary perspective view of a spectacle frame provided with an anti-theft device, and
- FIG. 2 is view of a cover from the back side thereof which is attached to the anti-theft device and is provided with the antenna element of the invention.
- The anti-theft device in FIG. 1 comprises a
sleeve 10 open at one end thereof, which has rectangular cross-sectional shape and preferably is made of plastics, for example polycarbonate. On one broad side thereof the sleeve is provided with a cover 11 of the same material as the sleeve, said cover being attached to the sleeve by ultrasound welding. Thesleeve 10 has opposinglongitudinal slots 12 in the two narrow sides thereof, which are big enough to allow thebow 14 of aspectacle frame 13 to be passed through the slots. Clamping means is provided in thesleeve 10, and the body formed bysleeve 10 and cover 11 is mounted to the bow, and is demounted from the bow by using a special tool, which can be engaged with said clamping means. - Inside the body there is located an element 33 (a so-called "diode") of the type affecting a magnetic, acoustic or electromagnetic field maintained between bow-shaped antennas at the exit of a shop, to disturb the field and cause signal generation. Said element is mounted inside the cover 11, and for this purpose the cover has on the backside thereof four
small pins 34 between which theelement 33 is located whileantenneas 35 of flexible wire provided on the element are passed around other,large pins 36 on the backside of the cover. When the cover 11 is attached to thesleeve 10 the pins are positioned adjacent the outside surface of the sleeve such that the element is held in a well defined position. As will be seen from FIG. 2 the antenna element of the invention formed byelement 33 andantennas 35 has a configuration similar to the letter S when mounted to cover 11.
Claims (3)
- Antenna element for anti-theft devices (10, 11) of the type affecting a magnetic, acoustic or electromagnetic field, characterized in that the element (33) and two antennas (35) projecting from opposite sides of said element form together a configuration similar to the letter S.
- Antenna element as in claim 1 characterized in that it is mounted to the backside of a cover (11) forming part of an anti-theft device (10, 11).
- Antenna element as in claim 2 characterized in that the configuration of the antenna element is defined by projections (34, 36) on the cover (11).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1989629118 DE68929118T2 (en) | 1989-05-19 | 1989-05-19 | Antenna element for anti-theft devices |
AT94120246T ATE187833T1 (en) | 1989-05-19 | 1989-05-19 | ANTENNA ELEMENT FOR ANTI-THEFT DEVICES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP89906836A EP0425515B1 (en) | 1987-12-14 | 1989-05-19 | Anti-theft device for spectacle frames |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89906836A Division EP0425515B1 (en) | 1987-12-14 | 1989-05-19 | Anti-theft device for spectacle frames |
EP89906836.5 Division | 1989-05-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0655719A2 true EP0655719A2 (en) | 1995-05-31 |
EP0655719A3 EP0655719A3 (en) | 1995-08-09 |
EP0655719B1 EP0655719B1 (en) | 1999-12-15 |
Family
ID=8203393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94120246A Expired - Lifetime EP0655719B1 (en) | 1989-05-19 | 1989-05-19 | Antenna element for anti-theft devices |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0655719B1 (en) |
AT (1) | ATE126379T1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0002595A1 (en) * | 1977-12-09 | 1979-06-27 | Lintech Instruments Limited | Transponders |
US4413254A (en) * | 1981-09-04 | 1983-11-01 | Sensormatic Electronics Corporation | Combined radio and magnetic energy responsive surveillance marker and system |
US4642640A (en) * | 1983-04-25 | 1987-02-10 | Sensormatic Electronics Corporation | Signal receptor-reradiator and surveillance tag using the same |
US4736207A (en) * | 1986-01-31 | 1988-04-05 | Sensormatic Electronics Corporation | Tag device and method for electronic article surveillance |
-
1989
- 1989-05-19 EP EP94120246A patent/EP0655719B1/en not_active Expired - Lifetime
- 1989-05-19 AT AT89906836T patent/ATE126379T1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0002595A1 (en) * | 1977-12-09 | 1979-06-27 | Lintech Instruments Limited | Transponders |
US4413254A (en) * | 1981-09-04 | 1983-11-01 | Sensormatic Electronics Corporation | Combined radio and magnetic energy responsive surveillance marker and system |
US4642640A (en) * | 1983-04-25 | 1987-02-10 | Sensormatic Electronics Corporation | Signal receptor-reradiator and surveillance tag using the same |
US4736207A (en) * | 1986-01-31 | 1988-04-05 | Sensormatic Electronics Corporation | Tag device and method for electronic article surveillance |
Also Published As
Publication number | Publication date |
---|---|
ATE126379T1 (en) | 1995-08-15 |
EP0655719B1 (en) | 1999-12-15 |
EP0655719A3 (en) | 1995-08-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4188851A (en) | Strap latching device | |
KR940020862A (en) | Headphone | |
USD332443S (en) | Enclosure for electrical equipment | |
KR890012587A (en) | Shoe fastening device and plate member | |
US5585809A (en) | Antenna unit for a car navigation device | |
FI905397A0 (en) | LOKALISERINGSSPOLAR OCH ANORDNING FOER DERAS FAESTNING VID HUVUDET FOER ANVAENDNING I MAGNETOENKEFALOGRAFISKA MAETNINGAR. | |
GB2222470A (en) | Bicycle handlebar holder for a wrist instrument. | |
US4306701A (en) | Rear view mirror mounting arrangement | |
EP0655719A2 (en) | Antenna element for anti-theft devices | |
ES1014900U (en) | Furniture with fastening device | |
US5299104A (en) | Shaving light apparatus | |
CA2354302A1 (en) | Swimming goggles | |
DE59106610D1 (en) | Fastening device for a fin on a sailing board. | |
JPS62152824A (en) | Molding of metallic plate embedded case | |
KR100238186B1 (en) | Emc gasket apparatus | |
US4544301A (en) | Keyboard assembly | |
US4967453A (en) | Resilient clip | |
EP0591580A1 (en) | Garment security clip | |
JPS5340254A (en) | Integrated circularly polarized horn antenna | |
DE3880598D1 (en) | DEVICE FOR ACOUSTIC MICROFLOW IN AN INK JET. | |
US3637241A (en) | Fabrication technique for electrical devices | |
USD266840S (en) | Electronic apparatus | |
KR920018742A (en) | Wire reel spring / cassette cover coupling and assembly method | |
USD290102S (en) | Motorcycle rotor cover | |
JP3484710B2 (en) | Mounting structure of belt type cord |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AC | Divisional application: reference to earlier application |
Ref document number: 425515 Country of ref document: EP |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19941220 |
|
R17P | Request for examination filed (corrected) |
Effective date: 19960208 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
17Q | First examination report despatched |
Effective date: 19990414 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AC | Divisional application: reference to earlier application |
Ref document number: 425515 Country of ref document: EP |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19991215 Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19991215 |
|
REF | Corresponds to: |
Ref document number: 187833 Country of ref document: AT Date of ref document: 20000115 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 6G 08B 13/24 A, 6G 01S 13/74 B |
|
REF | Corresponds to: |
Ref document number: 68929118 Country of ref document: DE Date of ref document: 20000120 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: BRAUN & PARTNER PATENT-, MARKEN-, RECHTSANWAELTE |
|
ET | Fr: translation filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000519 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000519 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000519 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000520 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000531 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000531 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
BERE | Be: lapsed |
Owner name: MW TRADING APS Effective date: 20000531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001201 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20000519 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
EUG | Se: european patent has lapsed |
Ref document number: 94120246.7 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20001201 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010301 |