BE426805A - - Google Patents

Info

Publication number
BE426805A
BE426805A BE426805DA BE426805A BE 426805 A BE426805 A BE 426805A BE 426805D A BE426805D A BE 426805DA BE 426805 A BE426805 A BE 426805A
Authority
BE
Belgium
Application number
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.)
Publication of BE426805A publication Critical patent/BE426805A/xx

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/104Treads
    • E04F11/112Treads of metal or with an upper layer of metal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H57/00Electrostrictive relays; Piezoelectric relays

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermally Actuated Switches (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
BE426805D 1937-03-16 BE426805A (enrdf_load_stackoverflow)

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
BE426805A true BE426805A (enrdf_load_stackoverflow)

Family

ID=22448167

Family Applications (1)

Application Number Title Priority Date Filing Date
BE426805D BE426805A (enrdf_load_stackoverflow) 1937-03-16

Country Status (6)

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

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 (de) * 1970-12-24 1972-07-06 Siemens Ag Elektrisches Zeitglied zum verzögerten Betätigen eines Schalters
US3777093A (en) * 1972-05-25 1973-12-04 R Sterns Electromechanical relay
JPS5161237U (enrdf_load_stackoverflow) * 1974-11-07 1976-05-14
JPS6230773Y2 (enrdf_load_stackoverflow) * 1980-12-19 1987-08-07
JPS59181585A (ja) * 1983-03-31 1984-10-16 Toshiba Corp 変位発生装置
JPS6046636U (ja) * 1983-09-05 1985-04-02 オムロン株式会社 多極リレ−
US4538087A (en) * 1984-06-11 1985-08-27 General Electric Company Alternating current driven piezoelectric latching relay and method of operation
US4553061A (en) * 1984-06-11 1985-11-12 General Electric Company Piezoelectric bimorph driven direct current latching relay
USRE33577E (en) * 1984-12-21 1991-04-23 General Electric Company Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture
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
US4595855A (en) * 1984-12-21 1986-06-17 General Electric Company Synchronously operable electrical current switching apparatus
US4626698A (en) * 1984-12-21 1986-12-02 General Electric Company Zero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devices
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
USRE33691E (en) * 1984-12-21 1991-09-17 General Electric Company Piezoelectric ceramic switching devices and systems and method of making the same
US4670682A (en) * 1984-12-21 1987-06-02 General Electric Company Piezoelectric ceramic switching devices and systems and method of making the same
US4669160A (en) * 1984-12-21 1987-06-02 General Electric Company Method for prepolarizing and centering a piezoelectric ceramic switching device
US4678957A (en) * 1986-06-24 1987-07-07 General Electric Company Piezoelectric ceramic switching devices and systems and methods of making the same
US4714847A (en) * 1984-12-21 1987-12-22 General Electric Company Advanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufacture
USRE33618E (en) * 1984-12-21 1991-06-25 General Electric Company Method for initially polarizing and centering a piezoelectric ceramic switching device
USRE33587E (en) * 1984-12-21 1991-05-14 General Electric Company Method for (prepolarizing and centering) operating a piezoceramic power switching device
US4689517A (en) * 1984-12-21 1987-08-25 General Electric Company Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture
USRE33568E (en) * 1984-12-21 1991-04-09 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
US11435461B2 (en) 2019-07-19 2022-09-06 GE Precision Healthcare LLC Method and system to prevent depoling of ultrasound transducer
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

Also Published As

Publication number Publication date
CH208062A (de) 1939-12-31
NL51407C (enrdf_load_stackoverflow)
FR835337A (fr) 1938-12-19
US2166763A (en) 1939-07-18
GB501691A (en) 1939-03-03

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