FR835337A - Piezoelectric devices and circuits using them - Google Patents

Piezoelectric devices and circuits using them

Info

Publication number: FR835337A
Authority: FR; France
Prior art keywords: circuits; piezoelectric devices; piezoelectric; devices
Prior art date: 1937-03-16
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

Other languages

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.)

Thales SA

Original Assignee

Le Materiel Telephonique Thomson CSF

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.)

1937-03-16

Filing date

1938-03-16

Publication date

1938-12-19

1938-03-16 Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF

1938-12-19 Application granted granted Critical

1938-12-19 Publication of FR835337A publication Critical patent/FR835337A/en

Status Expired legal-status Critical Current

Classifications

- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/112—Treads of metal or with an upper layer of metal
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H57/00—Electrostrictive relays; Piezoelectric relays

Landscapes

Engineering & Computer Science (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Thermally Actuated Switches (AREA)

FR835337D 1937-03-16 1938-03-16 Piezoelectric devices and circuits using them Expired FR835337A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US131160A US2166763A (en)	1937-03-16	1937-03-16	Piezoelectric apparatus and circuits

Publications (1)

Publication Number	Publication Date
FR835337A true FR835337A (en)	1938-12-19

Family

ID=22448167

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR835337D Expired FR835337A (en)	1937-03-16	1938-03-16	Piezoelectric devices and circuits using them

Country Status (6)

Country	Link
US (1)	US2166763A (en)
BE (1)	BE426805A (en)
CH (1)	CH208062A (en)
FR (1)	FR835337A (en)
GB (1)	GB501691A (en)
NL (1)	NL51407C (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2479173A (en) *	1944-07-26	1949-08-16	Gen Electric	Circuit and starter for electric discharge devices
US2714642A (en) *	1952-07-10	1955-08-02	Bell Telephone Labor Inc	High speed relay of electromechanical transducer material
US2916578A (en) *	1955-04-01	1959-12-08	Electric Machinery Mfg Co	Electrostrictive capacitive relay having tension mounted actuator
US2967956A (en) *	1955-04-19	1961-01-10	Gulton Ind Inc	Transducer
US3613589A (en) *	1955-12-23	1971-10-19	Us Army	Bomb fuzing system
US3004176A (en) *	1959-03-30	1961-10-10	Bell Telephone Labor Inc	Electromechanical transducers
US3109153A (en) *	1960-11-18	1963-10-29	Gen Dynamics Corp	Adjustable piezoelectric wave filter having two resonance peaks
DE2063799A1 (en) *	1970-12-24	1972-07-06	Siemens Ag	Electrical timing element for delayed actuation of a switch
US3777093A (en) *	1972-05-25	1973-12-04	R Sterns	Electromechanical relay
JPS5161237U (en) *	1974-11-07	1976-05-14
JPS6230773Y2 (en) *	1980-12-19	1987-08-07
JPS59181585A (en) *	1983-03-31	1984-10-16	Toshiba Corp	Displacement generator
JPS6046636U (en) *	1983-09-05	1985-04-02	オムロン株式会社	multi-pole relay
US4553061A (en) *	1984-06-11	1985-11-12	General Electric Company	Piezoelectric bimorph driven direct current latching relay
US4538087A (en) *	1984-06-11	1985-08-27	General Electric Company	Alternating current driven piezoelectric latching relay and method of operation
US4620123A (en) *	1984-12-21	1986-10-28	General Electric Company	Synchronously operable electrical current switching apparatus having multiple circuit switching capability and/or reduced contact resistance
USRE33618E (en) *	1984-12-21	1991-06-25	General Electric Company	Method for initially polarizing and centering a piezoelectric ceramic switching device
US4714847A (en) *	1984-12-21	1987-12-22	General Electric Company	Advanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufacture
US4689517A (en) *	1984-12-21	1987-08-25	General Electric Company	Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture
US4670682A (en) *	1984-12-21	1987-06-02	General Electric Company	Piezoelectric ceramic switching devices and systems and method of making the same
USRE33568E (en) *	1984-12-21	1991-04-09	General Electric Company	Piezoelectric ceramic switching devices and systems and methods of making the same
USRE33577E (en) *	1984-12-21	1991-04-23	General Electric Company	Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture
US4669160A (en) *	1984-12-21	1987-06-02	General Electric Company	Method for prepolarizing and centering a piezoelectric ceramic switching device
US4626698A (en) *	1984-12-21	1986-12-02	General Electric Company	Zero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devices
USRE33691E (en) *	1984-12-21	1991-09-17	General Electric Company	Piezoelectric ceramic switching devices and systems and method of making the same
US4595855A (en) *	1984-12-21	1986-06-17	General Electric Company	Synchronously operable electrical current switching apparatus
USRE33587E (en) *	1984-12-21	1991-05-14	General Electric Company	Method for (prepolarizing and centering) operating a piezoceramic power switching device
US4620124A (en) *	1984-12-21	1986-10-28	General Electric Company	Synchronously operable electrical current switching apparatus having increased contact separation in the open position and increased contact closing force in the closed position
US4678957A (en) *	1986-06-24	1987-07-07	General Electric Company	Piezoelectric ceramic switching devices and systems and methods of making the same
US4658154A (en) *	1985-12-20	1987-04-14	General Electric Company	Piezoelectric relay switching circuit
US4697118A (en) *	1986-08-15	1987-09-29	General Electric Company	Piezoelectric switch
US4967568A (en) *	1988-03-25	1990-11-06	General Electric Company	Control system, method of operating an atmospheric cooling apparatus and atmospheric cooling apparatus
US5628411A (en) *	1994-12-01	1997-05-13	Sortex Limited	Valve devices for use in sorting apparatus ejectors
US6497660B1 (en) *	2000-10-18	2002-12-24	Koninklijke Philips Electronics N.V.	Ultrasound imaging device
US11464494B2 (en)	2019-07-19	2022-10-11	GE Precision Healthcare LLC	Method and system to revert a depoling effect exhibited by an ultrasound transducer
US11435461B2 (en)	2019-07-19	2022-09-06	GE Precision Healthcare LLC	Method and system to prevent depoling of ultrasound transducer

0
- BE BE426805D patent/BE426805A/xx unknown
- NL NL51407D patent/NL51407C/xx active
1937
- 1937-03-16 US US131160A patent/US2166763A/en not_active Expired - Lifetime
1938
- 1938-02-11 GB GB4405/38A patent/GB501691A/en not_active Expired
- 1938-03-15 CH CH208062D patent/CH208062A/en unknown
- 1938-03-16 FR FR835337D patent/FR835337A/en not_active Expired

Also Published As

Publication number	Publication date
NL51407C (en)
GB501691A (en)	1939-03-03
BE426805A (en)
US2166763A (en)	1939-07-18
CH208062A (en)	1939-12-31

Publication	Publication Date	Title
FR835337A (en)	1938-12-19	Piezoelectric devices and circuits using them
FR845844A (en)	1939-09-04	Electromagnetic vibrators
FR829267A (en)	1938-06-17	Electronic discharge devices
FR847000A (en)	1939-09-28	Telephone device
FR859185A (en)	1940-12-12	Thermo-electric generator
FR848179A (en)	1939-10-24	Electronic discharge devices
FR834005A (en)	1938-11-09	Electronic discharge devices
FR847865A (en)	1939-10-18	Vibrating electro-mechanical devices
FR832947A (en)	1938-10-06	Electronic tubes and circuits using them
FR844299A (en)	1939-07-21	Acoustic devices
FR870882A (en)	1942-03-27	Acoustic device
FR832529A (en)	1938-09-28	Directed shortwave device
FR857575A (en)	1940-09-19	Electronic discharge devices and circuits using them
FR846915A (en)	1939-09-28	Printing telegraph devices
FR831891A (en)	1938-09-15	Electrical circuits using vibrating electrical elements
FR842225A (en)	1939-06-08	Mitten
FR833613A (en)	1938-10-26	Navigation devices
FR823682A (en)	1938-01-25	Dosing-dispenser device
FR817461A (en)	1937-09-03	Hydro-slider device
FR831895A (en)	1938-09-15	Fumivorous device
FR845719A (en)	1939-08-31	Electromechanical vibrating device
FR821898A (en)	1937-12-15	Piezoelectric devices
FR861997A (en)	1941-02-22	Premagnetization self-inductors and circuits using them
FR835935A (en)	1939-01-05	Electronic discharge devices
FR840408A (en)	1939-04-25	Electronic discharge devices