FR989893A - Mechanical band filter - Google Patents
Mechanical band filterInfo
- Publication number
- FR989893A FR989893A FR989893DA FR989893A FR 989893 A FR989893 A FR 989893A FR 989893D A FR989893D A FR 989893DA FR 989893 A FR989893 A FR 989893A
- Authority
- FR
- France
- Prior art keywords
- band filter
- mechanical band
- mechanical
- filter
- band
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/30—Electromagnetic relays specially adapted for actuation by ac
- H01H51/32—Frequency relays; Mechanically-tuned relays
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH662917X | 1948-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR989893A true FR989893A (en) | 1951-09-14 |
Family
ID=4527056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR989893D Expired FR989893A (en) | 1948-11-11 | 1949-06-29 | Mechanical band filter |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE854228C (en) |
FR (1) | FR989893A (en) |
GB (1) | GB662917A (en) |
NL (1) | NL76872C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1038651B (en) * | 1955-04-13 | 1958-09-11 | Cfcmug | Electromechanical resonance relay |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL93661C (en) * | 1954-12-20 | |||
CH350051A (en) * | 1957-05-25 | 1960-11-15 | Zellweger Uster Ag | Electromechanical belt filter |
CH571291A5 (en) * | 1972-06-12 | 1975-12-31 | Elresor Sa |
-
0
- NL NL76872D patent/NL76872C/xx active
-
1949
- 1949-06-29 FR FR989893D patent/FR989893A/en not_active Expired
- 1949-10-28 GB GB27725/49A patent/GB662917A/en not_active Expired
- 1949-11-30 DE DEL504A patent/DE854228C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1038651B (en) * | 1955-04-13 | 1958-09-11 | Cfcmug | Electromechanical resonance relay |
Also Published As
Publication number | Publication date |
---|---|
GB662917A (en) | 1951-12-12 |
NL76872C (en) | |
DE854228C (en) | 1952-10-30 |
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