CA1139813A - Permanent magnet for a bistable element and bistable element and data display units with at least one such element - Google Patents
Permanent magnet for a bistable element and bistable element and data display units with at least one such elementInfo
- Publication number
- CA1139813A CA1139813A CA000355214A CA355214A CA1139813A CA 1139813 A CA1139813 A CA 1139813A CA 000355214 A CA000355214 A CA 000355214A CA 355214 A CA355214 A CA 355214A CA 1139813 A CA1139813 A CA 1139813A
- Authority
- CA
- Canada
- Prior art keywords
- permanent magnet
- rotor
- axis
- rotation
- bistable element
- 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.)
- Expired
Links
- 230000002441 reversible effect Effects 0.000 claims description 4
- 239000000727 fraction Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/14—Pivoting armatures
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane
- G08B5/30—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane with rotating or oscillating members, e.g. vanes
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR79/17804 | 1979-07-05 | ||
| FR7917804A FR2460532A1 (fr) | 1979-07-05 | 1979-07-05 | Aimant permanent pour element bistable et element bistable et unites de visualisation de donnees pourvues d'au moins un tel element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1139813A true CA1139813A (en) | 1983-01-18 |
Family
ID=9227690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000355214A Expired CA1139813A (en) | 1979-07-05 | 1980-07-02 | Permanent magnet for a bistable element and bistable element and data display units with at least one such element |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0022395B1 (enrdf_load_stackoverflow) |
| AT (1) | ATE4073T1 (enrdf_load_stackoverflow) |
| CA (1) | CA1139813A (enrdf_load_stackoverflow) |
| DE (1) | DE3064027D1 (enrdf_load_stackoverflow) |
| FR (1) | FR2460532A1 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2487098A1 (fr) * | 1980-07-18 | 1982-01-22 | Vandeputte Fils & Cie | Dispositif de visualisation de donnees |
| FR2555344A1 (fr) * | 1983-11-18 | 1985-05-24 | Nei Canada Ltd | Dispositif indicateur ou d'affichage a ailettes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3295238A (en) * | 1963-11-01 | 1967-01-03 | Ferranti Packard Ltd | Sign element |
| GB1080458A (en) * | 1966-03-18 | 1967-08-23 | Patent Button Co | An electromagnetic indicator |
| US3638550A (en) * | 1966-12-30 | 1972-02-01 | John R Hereford | Rotary electromagnetic actuator |
| SE390223B (sv) * | 1975-03-19 | 1976-12-06 | Widens Elautomatik Ab | Bistabilt legesindikerande element |
-
1979
- 1979-07-05 FR FR7917804A patent/FR2460532A1/fr active Granted
-
1980
- 1980-06-24 AT AT80400936T patent/ATE4073T1/de not_active IP Right Cessation
- 1980-06-24 EP EP80400936A patent/EP0022395B1/fr not_active Expired
- 1980-06-24 DE DE8080400936T patent/DE3064027D1/de not_active Expired
- 1980-07-02 CA CA000355214A patent/CA1139813A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ATE4073T1 (de) | 1983-07-15 |
| DE3064027D1 (en) | 1983-08-11 |
| FR2460532A1 (fr) | 1981-01-23 |
| EP0022395A1 (fr) | 1981-01-14 |
| EP0022395B1 (fr) | 1983-07-06 |
| FR2460532B1 (enrdf_load_stackoverflow) | 1984-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20000118 |