BE540777A - - Google Patents
Info
- Publication number
- BE540777A BE540777A BE540777DA BE540777A BE 540777 A BE540777 A BE 540777A BE 540777D A BE540777D A BE 540777DA BE 540777 A BE540777 A BE 540777A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/62—Filters comprising resonators of magnetostrictive material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/135—Driving means, e.g. electrodes, coils for networks consisting of magnetostrictive materials
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/48—Coupling means therefor
- H03H9/50—Mechanical coupling means
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US469388A US2808572A (en) | 1954-11-17 | 1954-11-17 | Center coupled filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE540777A true BE540777A (de) |
Family
ID=23863596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE540777D BE540777A (de) | 1954-11-17 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2808572A (de) |
| BE (1) | BE540777A (de) |
| CH (1) | CH332314A (de) |
| DE (1) | DE1116326B (de) |
| FR (1) | FR1153858A (de) |
| GB (1) | GB781033A (de) |
| NL (2) | NL95629C (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1158588B (de) * | 1960-05-14 | 1963-12-05 | Telefunken Patent | Elektrostriktiver Torsionsschwinger |
| US3135933A (en) * | 1962-07-26 | 1964-06-02 | Collins Radio Co | M derived mechanical filter |
| US3351875A (en) * | 1962-12-20 | 1967-11-07 | Collins Radio Co | Ring coupled mechanical filter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1678116A (en) * | 1923-10-16 | 1928-07-24 | Western Electric Co | Device for the transmission of mechanical vibratory energy |
| US1666681A (en) * | 1924-04-22 | 1928-04-17 | Western Electric Co | Mechanical wave filter |
| US2501488A (en) * | 1946-07-19 | 1950-03-21 | Zenith Radio Corp | Magnetostrictively driven mechanical wave filter |
| US2617882A (en) * | 1950-05-29 | 1952-11-11 | Rca Corp | Maximal flatness filter |
| US2693579A (en) * | 1952-04-21 | 1954-11-02 | Collins Radio Co | Longitudinal support of mechanical filter |
| US2656516A (en) * | 1952-08-14 | 1953-10-20 | Collins Radio Co | Filter using transverse supporting means |
| US2693580A (en) * | 1953-07-06 | 1954-11-02 | Collins Radio Co | Electromechanical filter with center drive of disk |
-
0
- NL NL199657D patent/NL199657A/xx unknown
- NL NL95629D patent/NL95629C/xx active
- BE BE540777D patent/BE540777A/xx unknown
-
1954
- 1954-11-17 US US469388A patent/US2808572A/en not_active Expired - Lifetime
-
1955
- 1955-08-15 GB GB23463/55A patent/GB781033A/en not_active Expired
- 1955-09-07 CH CH332314D patent/CH332314A/fr unknown
- 1955-09-15 FR FR1153858D patent/FR1153858A/fr not_active Expired
- 1955-09-30 DE DEC11889A patent/DE1116326B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL95629C (de) | |
| GB781033A (en) | 1957-08-14 |
| NL199657A (de) | |
| US2808572A (en) | 1957-10-01 |
| FR1153858A (fr) | 1958-03-28 |
| DE1116326B (de) | 1961-11-02 |
| CH332314A (fr) | 1958-08-31 |