ES428885A1 - Perfeccionamientos en filtros electromecanicos. - Google Patents

Perfeccionamientos en filtros electromecanicos.

Info

Publication number: ES428885A1
Authority: ES; Spain
Prior art keywords: resonators; electromechanical filter; vibrating resonators; flexurally vibrating; coupling wire
Prior art date: 1973-08-03
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

Application number

ES428885A

Other languages

English (en)

Spanish (es)

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Telettra Laboratori di Telefonia Elettronica e Radio SpA

Original Assignee

Telettra Laboratori di Telefonia Elettronica e Radio SpA

Priority date (The priority date 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 date listed.)

1973-08-03

Filing date

1974-08-02

Publication date

1976-09-01

1974-08-02 Application filed by Telettra Laboratori di Telefonia Elettronica e Radio SpA filed Critical Telettra Laboratori di Telefonia Elettronica e Radio SpA

1976-09-01 Publication of ES428885A1 publication Critical patent/ES428885A1/es

Status Expired legal-status Critical Current

Links

230000008878 coupling Effects 0.000 abstract 2
238000010168 coupling process Methods 0.000 abstract 2
238000005859 coupling reaction Methods 0.000 abstract 2

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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)

ES428885A 1973-08-03 1974-08-02 Perfeccionamientos en filtros electromecanicos. Expired ES428885A1 (es)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT2748273A IT992811B (it)	1973-08-03	1973-08-03	Filtro elettromeccanico con risona tori vibranti a flessione

Publications (1)

Publication Number	Publication Date
ES428885A1 true ES428885A1 (es)	1976-09-01

Family

ID=11221735

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES428885A Expired ES428885A1 (es)	1973-08-03	1974-08-02	Perfeccionamientos en filtros electromecanicos.

Country Status (8)

Country	Link
BR (1)	BR7406380D0 (it)
DE (1)	DE2433874C3 (it)
ES (1)	ES428885A1 (it)
FR (1)	FR2239811B1 (it)
GB (1)	GB1482112A (it)
IT (1)	IT992811B (it)
RO (1)	RO80736A (it)
YU (1)	YU36321B (it)

1973
- 1973-08-03 IT IT2748273A patent/IT992811B/it active
1974
- 1974-07-15 DE DE19742433874 patent/DE2433874C3/de not_active Expired
- 1974-07-15 GB GB3121674A patent/GB1482112A/en not_active Expired
- 1974-07-22 FR FR7425348A patent/FR2239811B1/fr not_active Expired
- 1974-07-24 YU YU210174A patent/YU36321B/xx unknown
- 1974-08-02 RO RO7479654A patent/RO80736A/ro unknown
- 1974-08-02 BR BR638074A patent/BR7406380D0/pt unknown
- 1974-08-02 ES ES428885A patent/ES428885A1/es not_active Expired

Also Published As

Publication number	Publication date
DE2433874B2 (de)	1977-11-03
YU210174A (en)	1981-08-31
FR2239811A1 (it)	1975-02-28
RO80736B (ro)	1983-05-30
RO80736A (ro)	1983-06-01
BR7406380D0 (pt)	1975-05-20
YU36321B (en)	1982-06-18
DE2433874A1 (de)	1975-02-13
IT992811B (it)	1975-09-30
FR2239811B1 (it)	1978-01-20
GB1482112A (en)	1977-08-03
DE2433874C3 (de)	1978-06-15

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