GB1096824A - Improvements in electric relays - Google Patents

Improvements in electric relays

Info

Publication number
GB1096824A
GB1096824A GB1297164A GB1297164A GB1096824A GB 1096824 A GB1096824 A GB 1096824A GB 1297164 A GB1297164 A GB 1297164A GB 1297164 A GB1297164 A GB 1297164A GB 1096824 A GB1096824 A GB 1096824A
Authority
GB
United Kingdom
Prior art keywords
magnet
contacts
electric
piezo
march
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
GB1297164A
Inventor
John Frederick Monk
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.)
Plessey UK Ltd
Original Assignee
Plessey UK Ltd
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 Plessey UK Ltd filed Critical Plessey UK Ltd
Priority to GB1297164A priority Critical patent/GB1096824A/en
Publication of GB1096824A publication Critical patent/GB1096824A/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
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H57/00—Electrostrictive relays; Piezoelectric relays
    • H01H2057/003—Electrostrictive relays; Piezoelectric relays the relay being latched in actuated position by magnet

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Adjustable Resistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1,096,824. Piezo-electric and electro-strictive relays. PLESSEY-UK Ltd. March 17, 1965 [March 26, 1964], No. 12971/64. Heading H2B. A relay comprises a piezo-electric or electrostrictive member 12 carrying a contact or contacts 15 engageable with a contact or contacts 16 on body 11 according to the polarity of the voltage applied at electrodes 13, variable magnetic biasing being provided by a magnet 20 attracting an armature 14 on member 12, Fig. 1, or a magnetic element 21 included in the member 12, Fig. 4. A U-shaped magnet 20 holds member 12 in either contactmaking position and also provides for snapactuation of the contacts. Magnet 20 is slidably mounted, Fig. 4, to vary the magnetic interaction between the barium ferrite magnet 20 and the steel shim 21 in the bimorph element or member 12. Bimorph 12 is of lead zirconate titanate strips which have been polarized.
GB1297164A 1964-03-26 1964-03-26 Improvements in electric relays Expired GB1096824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1297164A GB1096824A (en) 1964-03-26 1964-03-26 Improvements in electric relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1297164A GB1096824A (en) 1964-03-26 1964-03-26 Improvements in electric relays

Publications (1)

Publication Number Publication Date
GB1096824A true GB1096824A (en) 1967-12-29

Family

ID=10014460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1297164A Expired GB1096824A (en) 1964-03-26 1964-03-26 Improvements in electric relays

Country Status (1)

Country Link
GB (1) GB1096824A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777093A (en) * 1972-05-25 1973-12-04 R Sterns Electromechanical relay
US4383195A (en) * 1980-10-24 1983-05-10 Piezo Electric Products, Inc. Piezoelectric snap actuator
DE3300717A1 (en) * 1982-01-11 1983-08-18 Piezo Electric Products, Inc., 02139 Cambridge, Mass. PIEZOELECTRIC RELAY WITH MAGNETIC RETENTION
US4461968A (en) * 1982-01-11 1984-07-24 Piezo Electric Products, Inc. Piezoelectric relay with magnetic detent
US4697118A (en) * 1986-08-15 1987-09-29 General Electric Company Piezoelectric switch
US4755706A (en) * 1986-06-19 1988-07-05 General Electric Company Piezoelectric relays in sealed enclosures
WO1999040596A1 (en) * 1998-02-03 1999-08-12 Tyco Electronics Logistics Ag Piezoelectric relay

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777093A (en) * 1972-05-25 1973-12-04 R Sterns Electromechanical relay
US4383195A (en) * 1980-10-24 1983-05-10 Piezo Electric Products, Inc. Piezoelectric snap actuator
DE3300717A1 (en) * 1982-01-11 1983-08-18 Piezo Electric Products, Inc., 02139 Cambridge, Mass. PIEZOELECTRIC RELAY WITH MAGNETIC RETENTION
US4458171A (en) * 1982-01-11 1984-07-03 Piezo Electric Products, Inc. Piezoelectric relay with tapered magnetic detent
US4461968A (en) * 1982-01-11 1984-07-24 Piezo Electric Products, Inc. Piezoelectric relay with magnetic detent
US4755706A (en) * 1986-06-19 1988-07-05 General Electric Company Piezoelectric relays in sealed enclosures
US4697118A (en) * 1986-08-15 1987-09-29 General Electric Company Piezoelectric switch
AU594818B2 (en) * 1986-08-15 1990-03-15 Pacific Bell Piezoelectric switch
WO1999040596A1 (en) * 1998-02-03 1999-08-12 Tyco Electronics Logistics Ag Piezoelectric relay

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