CH218129A - Mit piezoelektrischen Elementen versehene elektromechanische Umwandlungsvorrichtung. - Google Patents

Mit piezoelektrischen Elementen versehene elektromechanische Umwandlungsvorrichtung.

Info

Publication number: CH218129A
Authority: CH; Switzerland
Prior art keywords: conversion device; device provided; piezoelectric elements; electromechanical conversion; electromechanical
Prior art date: 1940-04-20

Application number

Other languages

English (en)

Inventor

Haftung Licentia Beschraenkter

Original Assignee

Licentia Gmbh

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.)

1940-04-20

Filing date

1941-04-15

Publication date

1941-11-30

1941-04-15 Application filed by Licentia Gmbh filed Critical Licentia Gmbh

1941-11-30 Publication of CH218129A publication Critical patent/CH218129A/de

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Piezo-Electric Transducers For Audible Bands (AREA)

CH218129D 1940-04-20 1941-04-15 Mit piezoelektrischen Elementen versehene elektromechanische Umwandlungsvorrichtung. CH218129A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE218129X		1940-04-20

Publications (1)

Publication Number	Publication Date
CH218129A true CH218129A (de)	1941-11-30

Family

ID=5831121

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH218129D CH218129A (de)	1940-04-20	1941-04-15	Mit piezoelektrischen Elementen versehene elektromechanische Umwandlungsvorrichtung.

Country Status (4)

Country	Link
US (1)	US2368609A (de)
CH (1)	CH218129A (de)
DE (1)	DE946820C (de)
FR (2)	FR871634A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2594841A (en) *	1945-08-11	1952-04-29	Brush Dev Co	Piezoelectric transducer with pushpull and feedback circuit
US2978597A (en) *	1956-03-14	1961-04-04	Harris Transducer Corp	Circuit element transducer
FR1213677A (fr) *	1958-09-27	1960-04-04	Realisations Ultrasoniques Sa	Perfectionnements aux transducteurs à magnétostriction
US3321648A (en) *	1964-06-04	1967-05-23	Sonus Corp	Piezoelectric filter element
CH492968A (de) *	1968-07-30	1970-06-30	Kistler Instrumente Ag	Verfahren zur Herstellung piezoelektrischer Messzellen und nach dem Verfahren erhaltene Messzelle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB409040A (en) *	1932-11-01	1934-04-26	Brush Dev Co	Improvements in or relating to piezo electric microphones or speakers

1940
- 1940-04-20 DE DEA20302D patent/DE946820C/de not_active Expired
1941
- 1941-04-15 CH CH218129D patent/CH218129A/de unknown
- 1941-04-19 FR FR871634D patent/FR871634A/fr not_active Expired
- 1941-05-17 FR FR51579D patent/FR51579E/fr not_active Expired
- 1941-06-07 US US397034A patent/US2368609A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR51579E (fr)	1943-02-05
DE946820C (de)	1956-08-09
FR871634A (fr)	1942-05-02
US2368609A (en)	1945-01-30

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