NL6616888A - - Google Patents
Info
- Publication number
- NL6616888A NL6616888A NL6616888A NL6616888A NL6616888A NL 6616888 A NL6616888 A NL 6616888A NL 6616888 A NL6616888 A NL 6616888A NL 6616888 A NL6616888 A NL 6616888A NL 6616888 A NL6616888 A NL 6616888A
- Authority
- NL
- Netherlands
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
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51540165A | 1965-12-21 | 1965-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL6616888A true NL6616888A (en) | 1967-06-22 |
| NL147566B NL147566B (en) | 1975-10-15 |
Family
ID=24051207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL666616888A NL147566B (en) | 1965-12-21 | 1966-11-30 | AXIALLY MAGNETIZED PERMANENT MAGNET AND METHOD OF MAGNETIZING THE THEREOF. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3440364A (en) |
| BE (1) | BE691586A (en) |
| DE (1) | DE1272374C2 (en) |
| FR (1) | FR1505923A (en) |
| GB (1) | GB1164307A (en) |
| NL (1) | NL147566B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235294B2 (en) * | 1971-12-17 | 1977-09-08 | ||
| US3971054A (en) * | 1974-07-12 | 1976-07-20 | Motorola, Inc. | Method and apparatus for magnetizing permanent magnet in magnetic structure |
| DE2744333A1 (en) * | 1977-10-01 | 1979-04-05 | Krupp Gmbh | MAGNETIC CORE |
| GB2218879A (en) * | 1988-05-18 | 1989-11-22 | Wang Shen Ting | A yoke in a cone speaker |
| CN1672114A (en) * | 2002-07-25 | 2005-09-21 | 桑尼昂霍森斯公司 | Mobile handset and assembly having multi-loudspeaker system |
| RU2741475C1 (en) * | 2020-02-03 | 2021-01-26 | Андрей Викторович Новгородов | Stepped structure of upper mounting part of basket for medium-frequency and low-frequency loudspeakers with cone shaped diffuser |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2188091A (en) * | 1934-07-11 | 1940-01-23 | Jr Max Baermann | Process for making permanent magnets and products thereof |
| US2224954A (en) * | 1936-04-09 | 1940-12-17 | Eisele Albert | Magnet |
| US3183398A (en) * | 1960-08-04 | 1965-05-11 | Raytheon Co | Beam focusing magnet |
| US3276922A (en) * | 1964-04-28 | 1966-10-04 | Robert S Sery | Method of producing magnetic cores by using electron irradiation |
-
1965
- 1965-12-21 US US515401A patent/US3440364A/en not_active Expired - Lifetime
-
1966
- 1966-11-16 DE DE19661272374 patent/DE1272374C2/en not_active Expired
- 1966-11-21 GB GB52085/66A patent/GB1164307A/en not_active Expired
- 1966-11-30 NL NL666616888A patent/NL147566B/en unknown
- 1966-12-21 FR FR88362A patent/FR1505923A/en not_active Expired
- 1966-12-21 BE BE691586D patent/BE691586A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL147566B (en) | 1975-10-15 |
| BE691586A (en) | 1967-06-21 |
| US3440364A (en) | 1969-04-22 |
| FR1505923A (en) | 1967-12-15 |
| DE1272374C2 (en) | 1973-12-20 |
| GB1164307A (en) | 1969-09-17 |
| DE1272374B (en) | 1968-07-11 |