GB958501A - Improvements in electromagnetic devices in which a body is moved between two stable end positions - Google Patents
Improvements in electromagnetic devices in which a body is moved between two stable end positionsInfo
- Publication number
- GB958501A GB958501A GB2293960A GB2293960A GB958501A GB 958501 A GB958501 A GB 958501A GB 2293960 A GB2293960 A GB 2293960A GB 2293960 A GB2293960 A GB 2293960A GB 958501 A GB958501 A GB 958501A
- Authority
- GB
- United Kingdom
- Prior art keywords
- permanent magnet
- soft iron
- moved
- end positions
- pulse
- 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
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
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
- H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F7/00—Shielded cells or rooms
- G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
- G21F7/066—Remotely manipulated tools
-
- 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
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
- H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
-
- 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
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
- H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Electromagnets (AREA)
Abstract
958,501. Electromagnets. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 30, 1960 [July 3, 1959], No. 22939/60. Heading H1P. A ferromagnetic body is held in either of two stable end positions by at least one, ferrite, permanent magnet, and is moved between them by electromagnetism provided by a current pulse. As shown, the body 1 comprises the permanent magnet and holds itself against either end of the soft iron cylinder 3, but is sent from one end to the other by repulsion when the appropriate coil 4 or 5 is pulsed. In one alternative arrangement (Fig. 2, not shown), the body is of soft iron and there is a permanent magnet at each end of the cylinder which is now of brass; a single coil extends between the ends and the pulse is applied for the first half of the travel only, the polarity being such that the body is repulsed from whichever is the nearer magnet. In a second alternative (Fig. 3, not shown), the body is again a permanent magnet which now traverses between the soft iron cores of two electromagnets connected in series whose polarities are such that the body is repulsed by one and attracted by the other. In this case the pulse length is immaterial but its sign must be appropriate for the direction of travel required.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL240857 | 1959-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB958501A true GB958501A (en) | 1964-05-21 |
Family
ID=19751811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2293960A Expired GB958501A (en) | 1959-07-03 | 1960-06-30 | Improvements in electromagnetic devices in which a body is moved between two stable end positions |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH386564A (en) |
GB (1) | GB958501A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4490815A (en) * | 1980-11-05 | 1984-12-25 | Hitachi Metals, Ltd. | Actuator for use in a pickup device for a video disk player |
EP0179911A1 (en) * | 1984-03-05 | 1986-05-07 | Mitsubishi Mining & Cement Co., Ltd. | Electromagnetic actuator apparatus |
GB2221798A (en) * | 1988-07-28 | 1990-02-14 | H U Dev Corp | Electromagnetic actuators |
GB2228831A (en) * | 1989-03-03 | 1990-09-05 | Ped Ltd | Bistable actuator and fluid control valve incorporating said actuator |
US4978935A (en) * | 1988-01-25 | 1990-12-18 | Jerzy Hoffman | Electromagnetic relay |
US5272458A (en) * | 1988-07-28 | 1993-12-21 | H-U Development Corporation | Solenoid actuator |
GB2430686A (en) * | 2005-09-29 | 2007-04-04 | Schlumberger Holdings | Bistable magnetic actuator |
GB2466102A (en) * | 2008-12-13 | 2010-06-16 | Camcon Ltd | Multi-stable electromagnetic actuator with a magnetic material casing |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU586630B2 (en) * | 1985-06-04 | 1989-07-20 | Iwasaki Electronics Co. Ltd. | Electromagnetic actuator |
DE102016118254A1 (en) * | 2016-09-27 | 2018-03-29 | Eto Magnetic Gmbh | Electromagnetic control system and operating procedures |
-
1960
- 1960-06-30 CH CH742160A patent/CH386564A/en unknown
- 1960-06-30 GB GB2293960A patent/GB958501A/en not_active Expired
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4490815A (en) * | 1980-11-05 | 1984-12-25 | Hitachi Metals, Ltd. | Actuator for use in a pickup device for a video disk player |
EP0179911A1 (en) * | 1984-03-05 | 1986-05-07 | Mitsubishi Mining & Cement Co., Ltd. | Electromagnetic actuator apparatus |
EP0179911A4 (en) * | 1984-03-05 | 1986-07-23 | Mitsubishi Mining & Cement Co | Electromagnetic actuator apparatus. |
US4978935A (en) * | 1988-01-25 | 1990-12-18 | Jerzy Hoffman | Electromagnetic relay |
GB2221798A (en) * | 1988-07-28 | 1990-02-14 | H U Dev Corp | Electromagnetic actuators |
US5272458A (en) * | 1988-07-28 | 1993-12-21 | H-U Development Corporation | Solenoid actuator |
GB2228831A (en) * | 1989-03-03 | 1990-09-05 | Ped Ltd | Bistable actuator and fluid control valve incorporating said actuator |
GB2430686A (en) * | 2005-09-29 | 2007-04-04 | Schlumberger Holdings | Bistable magnetic actuator |
GB2430686B (en) * | 2005-09-29 | 2010-09-29 | Schlumberger Holdings | Actuator |
GB2466102A (en) * | 2008-12-13 | 2010-06-16 | Camcon Ltd | Multi-stable electromagnetic actuator with a magnetic material casing |
US8710945B2 (en) | 2008-12-13 | 2014-04-29 | Camcon Oil Limited | Multistable electromagnetic actuators |
GB2466102B (en) * | 2008-12-13 | 2014-04-30 | Camcon Ltd | Multistable electromagnetic actuators with energy storage and recycling arrangements |
Also Published As
Publication number | Publication date |
---|---|
CH386564A (en) | 1965-01-15 |
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