GB520267A - Vibrating piezoelectric relays - Google Patents

Vibrating piezoelectric relays

Info

Publication number
GB520267A
GB520267A GB31244/38A GB3124438A GB520267A GB 520267 A GB520267 A GB 520267A GB 31244/38 A GB31244/38 A GB 31244/38A GB 3124438 A GB3124438 A GB 3124438A GB 520267 A GB520267 A GB 520267A
Authority
GB
United Kingdom
Prior art keywords
vibrator
vibrating piezoelectric
xxxvii
electric
piezoelectric relays
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
Application number
GB31244/38A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB520267A publication Critical patent/GB520267A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H57/00—Electrostrictive relays; Piezoelectric relays
    • 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)
  • Telephone Function (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

520,267. Electric tests. STANDARD TELEPHONES & CABLES, Ltd. Oct. 28, 1938, No. 31244. Convention date, Nov. 10, 1937. Drawings to Specification. [Class 37] [Also in Groups XXXVII, XXXIX and XL], A piezo-electric vibrator is used as a polarity indicator, the application of an E.M.F. in one direction operating the vibrator and a galvanometer, by closing contacts and short-circuiting the plates, while with reversed connection the element is deflected permanently away from the fixed contact. Specification 501,691, [Group XXXVII], is referred to.
GB31244/38A 1937-11-10 1938-10-28 Vibrating piezoelectric relays Expired GB520267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US173770A US2195417A (en) 1937-11-10 1937-11-10 Vibrating piezoelectric relay

Publications (1)

Publication Number Publication Date
GB520267A true GB520267A (en) 1940-04-18

Family

ID=22633413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31244/38A Expired GB520267A (en) 1937-11-10 1938-10-28 Vibrating piezoelectric relays

Country Status (2)

Country Link
US (1) US2195417A (en)
GB (1) GB520267A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954182C (en) * 1952-04-01 1956-12-13 Kieler Howaldtswerke Ag Crystal contact breaker for converting low to extremely low direct voltages into alternating voltages
DE1031638B (en) * 1954-10-12 1958-06-04 Salfret Ltd Electrically driven diaphragm pump, especially for liquids

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719929A (en) * 1955-10-04 brown
US2883486A (en) * 1954-03-09 1959-04-21 Bell Telephone Labor Inc Piezoelectric switching device
US2928409A (en) * 1955-01-31 1960-03-15 Textron Inc Non-magnetic electro hydraulic transfer valve
US2867701A (en) * 1955-02-15 1959-01-06 Clevite Corp Device for providing reproducible mechanical motions
US2836738A (en) * 1956-05-02 1958-05-27 Joseph W Crownover Prestressed piezo crystal
US2950368A (en) * 1957-11-04 1960-08-23 Gulton Ind Inc Resonant reed relay
NL236375A (en) * 1958-02-21 1900-01-01
US3110824A (en) * 1960-10-31 1963-11-12 Eastman Kodak Co Piezoelectric actuating element
US3336529A (en) * 1962-12-03 1967-08-15 Lockheed Aircraft Corp Vibrating reed frequency responsive device
US3501745A (en) * 1965-07-15 1970-03-17 Lear Siegler Inc Frequency selective resonant reed detector
US3416135A (en) * 1965-09-09 1968-12-10 Motorola Inc False signal prevention system including mechanical member physically displaceable by vibration and shock
NL169940C (en) * 1973-12-22 1982-09-01 Nihon Dempa Kogyo Co DEVICE FOR WEARING A QUARTZ CRYSTAL ELEMENT OF THE VOTE FORK TYPE.
US4004166A (en) * 1975-03-12 1977-01-18 Nihon Dempa Kogyo Co., Ltd. Method for stabilizing the vibration frequency of a tuning fork-type quartz crystal oscillator
US4395651A (en) * 1981-04-10 1983-07-26 Yujiro Yamamoto Low energy relay using piezoelectric bender elements
US4422001A (en) * 1981-06-05 1983-12-20 Gerhart Weiss Crystal vibrator actuated relay
US4399385A (en) * 1982-02-11 1983-08-16 Rca Corporation Rotative motor using a triangular piezoelectric element
US4399386A (en) * 1982-02-11 1983-08-16 Rca Corporation Rotative motor using plural arrays of piezoelectric elements
JPS6044346U (en) * 1983-09-01 1985-03-28 オムロン株式会社 Piezoelectric bimorph drive circuit
US4658154A (en) * 1985-12-20 1987-04-14 General Electric Company Piezoelectric relay switching circuit
US6262520B1 (en) * 1999-09-15 2001-07-17 Bei Technologies, Inc. Inertial rate sensor tuning fork

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954182C (en) * 1952-04-01 1956-12-13 Kieler Howaldtswerke Ag Crystal contact breaker for converting low to extremely low direct voltages into alternating voltages
DE1031638B (en) * 1954-10-12 1958-06-04 Salfret Ltd Electrically driven diaphragm pump, especially for liquids

Also Published As

Publication number Publication date
US2195417A (en) 1940-04-02

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