BE556726A - - Google Patents
Info
- Publication number
- BE556726A BE556726A BE556726DA BE556726A BE 556726 A BE556726 A BE 556726A BE 556726D A BE556726D A BE 556726DA BE 556726 A BE556726 A BE 556726A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0273—Magnetic circuits with PM for magnetic field generation
- H01F7/0289—Transducers, loudspeakers, moving coil arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE860439X | 1956-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE556726A true BE556726A (zh) |
Family
ID=6791821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE556726D BE556726A (zh) | 1956-04-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2895092A (zh) |
| BE (1) | BE556726A (zh) |
| FR (1) | FR1171263A (zh) |
| GB (1) | GB860439A (zh) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1130517B (de) * | 1959-12-22 | 1962-05-30 | Baermann Max | Magnetanordnung fuer Grosswinkel-Drehspulmessinstrumente |
| US3134057A (en) * | 1960-07-11 | 1964-05-19 | Sumitomo Metal Ind | Magnetic circuit for the deflection of flux leakage |
| US3120631A (en) * | 1960-11-14 | 1964-02-04 | Exxon Research Engineering Co | Electromagnet for supporting and dropping weights |
| US3147350A (en) * | 1961-12-18 | 1964-09-01 | Lockheed Aircraft Corp | Magnetically operated reed switch |
| US3198254A (en) * | 1962-05-08 | 1965-08-03 | Baker Oil Tools Inc | Method and apparatus for completing wells |
| US3454913A (en) * | 1966-11-14 | 1969-07-08 | Eriez Mfg Co | Permanent magnetic pulley |
| US3478289A (en) * | 1968-02-12 | 1969-11-11 | Robert A Parnell | Permanent magnet assembly for a loudspeaker assembly |
| US3737822A (en) * | 1970-06-10 | 1973-06-05 | Magnetics Int Inc | Magnetic separator |
| US4321652A (en) * | 1979-04-30 | 1982-03-23 | Minnesota Mining And Manufacturing Co. | Low voltage transformer relay |
| US4363639A (en) * | 1981-03-09 | 1982-12-14 | Iowa State University Research Foundation, Inc. | Gas trap for removing atmospheric pollutants and method of operation |
| US4549155A (en) * | 1982-09-20 | 1985-10-22 | The United States Of America As Represented By The United States Department Of Energy | Permanent magnet multipole with adjustable strength |
| JPS59139794A (ja) * | 1983-01-31 | 1984-08-10 | Ibuki Kogyo Kk | 漏洩磁場を打消したホ−ンスピ−カ− |
| US4647887A (en) * | 1984-12-24 | 1987-03-03 | The United States Of America As Represented By The Secretary Of The Army | Lightweight cladding for magnetic circuits |
| US5142260A (en) * | 1991-03-08 | 1992-08-25 | Harman International Industries, Incorporated | Transducer motor assembly |
| US5380430A (en) * | 1992-07-24 | 1995-01-10 | Overton; James M. | Magnetizing apparatus for treatment of fluids |
| US5409236A (en) * | 1993-12-23 | 1995-04-25 | Therrien; Joel M. | Magnetic game or puzzle and method for making same |
| JP4159184B2 (ja) * | 1999-06-25 | 2008-10-01 | 株式会社デルタツーリング | 磁気ばね |
| US6573817B2 (en) | 2001-03-30 | 2003-06-03 | Sti Optronics, Inc. | Variable-strength multipole beamline magnet |
| US7705702B2 (en) | 2006-08-08 | 2010-04-27 | Selex Galileo Ltd | Actuator |
| GB2440768A (en) * | 2006-08-08 | 2008-02-13 | Selex Sensors & Airborne Sys | Magnet assembly for moving coil actuator |
| JP4845677B2 (ja) * | 2006-10-31 | 2011-12-28 | 三洋電機株式会社 | 電気音響変換装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2398653A (en) * | 1942-10-15 | 1946-04-16 | Gen Electric | Magnetic structure |
-
0
- BE BE556726D patent/BE556726A/xx unknown
-
1957
- 1957-04-15 GB GB12228/57A patent/GB860439A/en not_active Expired
- 1957-04-16 US US653119A patent/US2895092A/en not_active Expired - Lifetime
- 1957-04-16 FR FR1171263D patent/FR1171263A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1171263A (fr) | 1959-01-23 |
| GB860439A (en) | 1961-02-08 |
| US2895092A (en) | 1959-07-14 |