DK165888A - DEVICE FOR PROTECTION AGAINST MAGNETIC FLUX IN THE ENVIRONMENTAL ENVIRONMENT OF OBJECTS WHICH MAY BE CHANGED BY MOVING WITH MAGNETIC FLUX IS ISSUE WITH A MEDIUM WHICH MAGNETIC INFORMATION MAY BE REGISTERED - Google Patents
DEVICE FOR PROTECTION AGAINST MAGNETIC FLUX IN THE ENVIRONMENTAL ENVIRONMENT OF OBJECTS WHICH MAY BE CHANGED BY MOVING WITH MAGNETIC FLUX IS ISSUE WITH A MEDIUM WHICH MAGNETIC INFORMATION MAY BE REGISTEREDInfo
- Publication number
- DK165888A DK165888A DK165888A DK165888A DK165888A DK 165888 A DK165888 A DK 165888A DK 165888 A DK165888 A DK 165888A DK 165888 A DK165888 A DK 165888A DK 165888 A DK165888 A DK 165888A
- Authority
- DK
- Denmark
- Prior art keywords
- magnetic flux
- objects
- magnetic
- medium
- issue
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0075—Magnetic shielding materials
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C11/18—Ticket-holders or the like
- A45C11/182—Credit card holders
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Microelectronics & Electronic Packaging (AREA)
- Engineering & Computer Science (AREA)
- Magnetic Record Carriers (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Soft Magnetic Materials (AREA)
- Paints Or Removers (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Protection Of Generators And Motors (AREA)
- Burglar Alarm Systems (AREA)
- Pinball Game Machines (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
In a device for protection of objects against magnetic flux, which objects are produced in such a manner that they can be altered by magnetic flux, in particular objects with a medium in which magnetic information can be recorded, the protection device consists of at least one protection layer 1 formed of a material with a high magnetic permeability coefficient in excess of 5,000 and a weak coercive magnetic field of less than 2 Orsted. <IMAGE>
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8610960A FR2602906B1 (en) | 1986-07-29 | 1986-07-29 | MATERIAL FOR PRODUCING PROTECTION DEVICES AGAINST THE MAGNETIC ENVIRONMENT OF OBJECTS HAVING A MAGNETIC INSCRIPTION MEDIUM, AND PROTECTION DEVICES MADE OF SUCH MATERIAL |
FR8610960 | 1986-07-29 | ||
PCT/FR1987/000290 WO1988001091A1 (en) | 1986-07-29 | 1987-07-21 | Device for protecting against an environing magnetic flux, objects susceptible of being altered by a magnetic flux, particularly objects presenting a carrier medium for magnetic inscriptions |
FR8700290 | 1987-07-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK165888D0 DK165888D0 (en) | 1988-03-25 |
DK165888A true DK165888A (en) | 1988-03-25 |
DK168972B1 DK168972B1 (en) | 1994-07-18 |
Family
ID=9337825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK165888A DK168972B1 (en) | 1986-07-29 | 1988-03-25 | Device for protection against magnetic flux in the environment surrounding objects which can be altered by magnetic flux action, in particular objects with a medium in which magnetic information can be recorded |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0275290B1 (en) |
JP (1) | JPH01500382A (en) |
AT (1) | ATE68904T1 (en) |
CA (1) | CA1297184C (en) |
DK (1) | DK168972B1 (en) |
ES (1) | ES2004958A6 (en) |
FR (1) | FR2602906B1 (en) |
GR (1) | GR871200B (en) |
PT (1) | PT85449B (en) |
WO (1) | WO1988001091A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989007347A1 (en) * | 1988-02-04 | 1989-08-10 | Uniscan Ltd. | Magnetic field concentrator |
US4836293A (en) * | 1988-11-21 | 1989-06-06 | Eastman Kodak Company | Shielding method for use with electromagnetic balance |
US5397881A (en) * | 1993-11-22 | 1995-03-14 | Mannik; Kallis H. | Third millenium credit card with magnetically onto it written multiple validity dates, from which is one single day as the credit card's validity day selected day after day by the legitimate card owner |
DE29618546U1 (en) * | 1996-10-24 | 1997-01-23 | Simanok, Thomas, 71229 Leonberg | Case for cards with magnetic stripes and / or chips |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1812660A1 (en) * | 1968-11-29 | 1970-06-11 | Reich K & F Tech Spez | Device for shielding electrotechnical devices against disruptive fields and rays |
DE2631091A1 (en) * | 1976-07-10 | 1978-01-12 | Adelt Ingeborg Ingeplastik | Cover for magnetically coded card - has identity or credit card in plastic holder with metal insert to screen from magnetic fields |
US4174419A (en) * | 1978-11-08 | 1979-11-13 | Allied Chemical Corporation | Stabilized magnetic shields |
JPS585780U (en) * | 1981-07-03 | 1983-01-14 | キスコ株式会社 | Protective case for bank cards |
JPS59161557U (en) * | 1983-04-13 | 1984-10-29 | 三信物産株式会社 | Container for cassette tape |
JPS59196470U (en) * | 1983-06-16 | 1984-12-27 | 株式会社リコー | Magnetic recording media storage container |
JPS5994874U (en) * | 1983-10-24 | 1984-06-27 | 朝日化成工業株式会社 | Anti-magnetic deposit passbook case |
JPS59145755U (en) * | 1983-10-24 | 1984-09-28 | 朝日化成工業株式会社 | Anti-magnetic floppy disk case |
JPS6152372U (en) * | 1984-04-09 | 1986-04-08 | ||
JPS60192179U (en) * | 1984-05-30 | 1985-12-20 | 久井 宗裕 | Magnetic shielding material for magnetic disk protective cases |
-
1986
- 1986-07-29 FR FR8610960A patent/FR2602906B1/en not_active Expired - Lifetime
-
1987
- 1987-07-21 EP EP87904887A patent/EP0275290B1/en not_active Expired - Lifetime
- 1987-07-21 AT AT87904887T patent/ATE68904T1/en not_active IP Right Cessation
- 1987-07-21 JP JP62504441A patent/JPH01500382A/en active Pending
- 1987-07-21 WO PCT/FR1987/000290 patent/WO1988001091A1/en active IP Right Grant
- 1987-07-24 GR GR871200A patent/GR871200B/en unknown
- 1987-07-28 ES ES8702212A patent/ES2004958A6/en not_active Expired
- 1987-07-28 CA CA000543190A patent/CA1297184C/en not_active Expired - Lifetime
- 1987-07-29 PT PT85449A patent/PT85449B/en not_active IP Right Cessation
-
1988
- 1988-03-25 DK DK165888A patent/DK168972B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0275290A1 (en) | 1988-07-27 |
DK165888D0 (en) | 1988-03-25 |
PT85449B (en) | 1993-07-30 |
ATE68904T1 (en) | 1991-11-15 |
EP0275290B1 (en) | 1991-10-23 |
FR2602906A1 (en) | 1988-02-19 |
FR2602906B1 (en) | 1991-10-31 |
WO1988001091A1 (en) | 1988-02-11 |
PT85449A (en) | 1988-07-29 |
GR871200B (en) | 1987-10-15 |
DK168972B1 (en) | 1994-07-18 |
ES2004958A6 (en) | 1989-02-16 |
CA1297184C (en) | 1992-03-10 |
JPH01500382A (en) | 1989-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Patent granted (law 1993) | ||
PBP | Patent lapsed | ||
PBP | Patent lapsed |