CA2072964A1 - Magnetic visual display - Google Patents
Magnetic visual displayInfo
- Publication number
- CA2072964A1 CA2072964A1 CA2072964A CA2072964A CA2072964A1 CA 2072964 A1 CA2072964 A1 CA 2072964A1 CA 2072964 A CA2072964 A CA 2072964A CA 2072964 A CA2072964 A CA 2072964A CA 2072964 A1 CA2072964 A1 CA 2072964A1
- Authority
- CA
- Canada
- Prior art keywords
- flakes
- magnetic field
- visual display
- magnetic
- magnetically active
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/008—Repeatedly-usable boards or tablets for writing or drawing with magnetic action
Abstract
An apparatus and method for providing a magnetic display in which a magnetic field (17) produce visual patterns upon exposure to the apparatus. The apparatus comprises an enclosure (50) which contains magnetically active flakes (16) held within a dispersion medium (14) which holds the magnetically active flakes in suspension, yet allows alignment of the flakes along the flux lines (18) of the magnetic field when the flakes are exposed to the locus of the magnetic field.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437,744 | 1989-11-16 | ||
US07/437,744 US5018979A (en) | 1989-11-16 | 1989-11-16 | Magnetic visual display |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2072964A1 true CA2072964A1 (en) | 1991-05-17 |
CA2072964C CA2072964C (en) | 1998-12-01 |
Family
ID=23737703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002072964A Expired - Fee Related CA2072964C (en) | 1989-11-16 | 1990-10-17 | Magnetic visual display |
Country Status (13)
Country | Link |
---|---|
US (2) | US5018979A (en) |
EP (1) | EP0500741B1 (en) |
JP (1) | JPH05503888A (en) |
KR (1) | KR920703350A (en) |
AT (1) | ATE136849T1 (en) |
AU (1) | AU6885691A (en) |
BR (1) | BR9007839A (en) |
CA (1) | CA2072964C (en) |
DE (1) | DE69026624D1 (en) |
ES (1) | ES2085362T3 (en) |
IE (1) | IE904132A1 (en) |
PT (1) | PT95920B (en) |
WO (1) | WO1991007287A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5018979A (en) * | 1989-11-16 | 1991-05-28 | The Ohio Art Company | Magnetic visual display |
US5295837A (en) * | 1989-11-16 | 1994-03-22 | The Ohio Art Company | Magnetic visual display |
US5151032A (en) * | 1990-07-13 | 1992-09-29 | Kabushiki Kaisha Pilot | Magnetophoretic display panel |
DE69218582T2 (en) * | 1992-02-21 | 1997-07-10 | Hashimoto Forming Kogyo Co | Painting with magnetically produced pattern and lacquered product with magnetically produced pattern |
US5478084A (en) * | 1992-12-18 | 1995-12-26 | Itkis; Yuri | Magnetic bingo board |
US5378879A (en) * | 1993-04-20 | 1995-01-03 | Raychem Corporation | Induction heating of loaded materials |
US6710259B2 (en) * | 1993-05-17 | 2004-03-23 | Electrochemicals, Inc. | Printed wiring boards and methods for making them |
US6171468B1 (en) | 1993-05-17 | 2001-01-09 | Electrochemicals Inc. | Direct metallization process |
US5725807A (en) * | 1993-05-17 | 1998-03-10 | Electrochemicals Inc. | Carbon containing composition for electroplating |
US6303181B1 (en) | 1993-05-17 | 2001-10-16 | Electrochemicals Inc. | Direct metallization process employing a cationic conditioner and a binder |
US5419706A (en) * | 1993-06-22 | 1995-05-30 | Levy; Richard C. | Apparatus for forming images of non-visible elements underlying an opaque surface |
US5613592A (en) * | 1995-06-06 | 1997-03-25 | Eastman Kodak Company | System for readily determining the magnetic orientation of permanent magnets |
US5788506A (en) * | 1996-10-24 | 1998-08-04 | The New Curiosity Shop | Apparatus and method for displaying the flow of a solution in response to the movement of magnetic particles |
JP3200382B2 (en) * | 1996-12-11 | 2001-08-20 | 株式会社パイロット | Dispersion composition for magnetic display |
US6053741A (en) * | 1998-06-18 | 2000-04-25 | Knowledge Kids Enterprises, Inc. | Flash card holder and learning method |
JP4089808B2 (en) * | 2001-12-25 | 2008-05-28 | ケミテック株式会社 | Erasable microcapsule magnetophoretic display sheet |
US20040197758A1 (en) * | 2002-07-12 | 2004-10-07 | Langford Gordon B. | Magnetically responsive imaging system with display |
US7607919B2 (en) | 2003-02-06 | 2009-10-27 | Kabushiki Kaisha Pilot Corporation | Magnetic substance display panel |
US20080220405A1 (en) * | 2006-04-05 | 2008-09-11 | Martin Lynch | Magnetic display for use by coaches and trainers of various sports |
US20070238080A1 (en) * | 2006-04-05 | 2007-10-11 | Martin Lynch | Magnetic display for use by coaches and trainers of various sports |
US20080030290A1 (en) * | 2006-08-04 | 2008-02-07 | Robert John Norman | Magnetic stylus and visual display |
US20110097699A1 (en) * | 2009-10-24 | 2011-04-28 | Shengmin Wen | Magnetically erasable writable educational flash card and method for making the same |
JP6006771B2 (en) * | 2014-10-29 | 2016-10-12 | 信越化学工業株式会社 | Method for improving thixotropy of organopolysiloxane composition |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA810324A (en) * | 1969-04-08 | R. Tate Clarence | Magnetically actuatable display device | |
US2589601A (en) * | 1950-09-26 | 1952-03-18 | Edward N Burnett | Magnetic slate |
US3011854A (en) * | 1959-12-30 | 1961-12-05 | Foxboro Co | Continuous reusable recording chart device |
US3103751A (en) * | 1961-05-05 | 1963-09-17 | Wilfred J Mcdonald | Chalkless writing board |
USRE25822E (en) * | 1961-10-27 | 1965-07-20 | Magnetic writing materials set | |
US3322482A (en) * | 1965-04-12 | 1967-05-30 | James V Harmon | Panel for controlling light transmission by the selective orientation of free particles |
US3509644A (en) * | 1968-06-28 | 1970-05-05 | Michael P Santell | Self-cleaning blackboard |
US3938263A (en) * | 1968-08-06 | 1976-02-17 | Thalatta, Inc. | Compartmentalized micromagnet display device |
US3585735A (en) * | 1968-08-27 | 1971-06-22 | Sidney Miller | Magnetic tracing box |
US3683382A (en) * | 1969-05-29 | 1972-08-08 | Honeywell Inc | Recording medium responsive to force fields and apparatus for recording and reproducing signals on the medium |
US3982334A (en) * | 1970-03-27 | 1976-09-28 | Thalatta, Inc. | Compartmentalized micromagnet display device |
US3648269A (en) * | 1970-07-16 | 1972-03-07 | Ferrofluidics Corp | Magnetic fluid display device |
UST921007I4 (en) * | 1973-08-31 | 1974-04-02 | Visually readable magnetic credit card storage media | |
JPS5947676B2 (en) * | 1977-04-11 | 1984-11-20 | 株式会社パイロット | magnetic panel |
US4232084A (en) * | 1978-01-25 | 1980-11-04 | Thalatta, Inc. | Sheets containing microencapsulated color-coded micromagnets |
GB2034640B (en) * | 1978-09-19 | 1982-06-30 | Fox M F | Magnetic display panel |
JPS5635357Y2 (en) * | 1978-10-16 | 1981-08-20 | ||
JPS561976A (en) * | 1979-06-20 | 1981-01-10 | Pilot Pen Co Ltd | Panel for magnetic display |
JPS56120396A (en) * | 1980-02-28 | 1981-09-21 | Pilot Pen Co Ltd | Panel for magnetic display |
JPS57500640A (en) * | 1980-04-09 | 1982-04-15 | ||
US4457723A (en) * | 1981-06-11 | 1984-07-03 | Thalatta, Inc. | Color changeable fabric |
US4804327A (en) * | 1988-02-02 | 1989-02-14 | Miller Sidney H | Magnetic tracing apparatus |
US5018979A (en) * | 1989-11-16 | 1991-05-28 | The Ohio Art Company | Magnetic visual display |
-
1989
- 1989-11-16 US US07/437,744 patent/US5018979A/en not_active Expired - Lifetime
-
1990
- 1990-10-17 AT AT90917466T patent/ATE136849T1/en not_active IP Right Cessation
- 1990-10-17 DE DE69026624T patent/DE69026624D1/en not_active Expired - Lifetime
- 1990-10-17 AU AU68856/91A patent/AU6885691A/en not_active Abandoned
- 1990-10-17 CA CA002072964A patent/CA2072964C/en not_active Expired - Fee Related
- 1990-10-17 WO PCT/US1990/005951 patent/WO1991007287A1/en active IP Right Grant
- 1990-10-17 KR KR1019920701139A patent/KR920703350A/en not_active Application Discontinuation
- 1990-10-17 EP EP90917466A patent/EP0500741B1/en not_active Expired - Lifetime
- 1990-10-17 BR BR909007839A patent/BR9007839A/en not_active Application Discontinuation
- 1990-10-17 ES ES90917466T patent/ES2085362T3/en not_active Expired - Lifetime
- 1990-10-17 JP JP3500403A patent/JPH05503888A/en active Pending
- 1990-11-15 IE IE413290A patent/IE904132A1/en unknown
- 1990-11-16 PT PT95920A patent/PT95920B/en not_active IP Right Cessation
-
1991
- 1991-03-13 US US07/668,914 patent/US5112229A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BR9007839A (en) | 1992-09-08 |
CA2072964C (en) | 1998-12-01 |
WO1991007287A1 (en) | 1991-05-30 |
DE69026624D1 (en) | 1996-05-23 |
EP0500741A4 (en) | 1992-12-30 |
US5112229A (en) | 1992-05-12 |
EP0500741A1 (en) | 1992-09-02 |
ES2085362T3 (en) | 1996-06-01 |
PT95920A (en) | 1992-07-31 |
IE904132A1 (en) | 1991-05-22 |
AU6885691A (en) | 1991-06-13 |
PT95920B (en) | 1998-07-31 |
KR920703350A (en) | 1992-12-17 |
ATE136849T1 (en) | 1996-05-15 |
EP0500741B1 (en) | 1996-04-17 |
US5018979A (en) | 1991-05-28 |
JPH05503888A (en) | 1993-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |