ES471937A1 - Perfeccionamientos en detectores de vibraciones de dos o maselementos sismicos - Google Patents

Perfeccionamientos en detectores de vibraciones de dos o maselementos sismicos

Info

Publication number
ES471937A1
ES471937A1 ES471937A ES471937A ES471937A1 ES 471937 A1 ES471937 A1 ES 471937A1 ES 471937 A ES471937 A ES 471937A ES 471937 A ES471937 A ES 471937A ES 471937 A1 ES471937 A1 ES 471937A1
Authority
ES
Spain
Prior art keywords
shock
contact device
device incorporating
vibration responsive
seismic elements
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
ES471937A
Other languages
English (en)
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.)
Sensata Technologies Ltd
Original Assignee
Inertia Switch 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 Inertia Switch Ltd filed Critical Inertia Switch Ltd
Publication of ES471937A1 publication Critical patent/ES471937A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1663—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using seismic sensing means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch

Abstract

Perfeccionamientos en detectores de vibraciones de dos o más elementos sísmicos, del tipo que comprende por lo menos un par de varillas paralelas, eléctricamente conductivas, al menos dos elementos sísmicos que tienen superficies exteriores eléctricamente conductivas montadas sobre las varillas del par para proporcionar conexiones eléctricas paralelas entré éstas dos varillas, caracterizados porque se utilizan medios posicionadores para empujar a cada elemento sísmico en contacto con un elemento sísmico adyacente para asegurar una conexión eléctrica entre elementos adyacentes cualquiera que con el movimiento relativo de los elementos adyacentes en sentido transversal a las varillas.
ES471937A 1977-07-22 1978-07-21 Perfeccionamientos en detectores de vibraciones de dos o maselementos sismicos Expired ES471937A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3097577 1977-07-22

Publications (1)

Publication Number Publication Date
ES471937A1 true ES471937A1 (es) 1979-10-01

Family

ID=10316023

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471937A Expired ES471937A1 (es) 1977-07-22 1978-07-21 Perfeccionamientos en detectores de vibraciones de dos o maselementos sismicos

Country Status (6)

Country Link
US (1) US4212208A (es)
EP (1) EP0001154B1 (es)
AU (1) AU521395B2 (es)
CA (1) CA1124383A (es)
DE (1) DE2860939D1 (es)
ES (1) ES471937A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE56272B1 (en) * 1985-02-11 1991-06-05 Anderson Res & Dev Ltd A vibration sensing device
US4839479A (en) * 1986-06-30 1989-06-13 Davis Jr Thomas O Article using shape-memory alloy to improve and/or control the speed of recovery
GB2228828B (en) * 1989-01-19 1992-09-02 Inertia Switch Ltd Inertia sensor assembly
US5053589A (en) * 1990-06-29 1991-10-01 Grant John T Vibration sensing device
US5742235A (en) * 1995-07-21 1998-04-21 Miche ; John Andrew Vertical, unidirectional seismic switch
US6737972B1 (en) * 2002-11-08 2004-05-18 Integrated Detection Systems Vibration sensor
DE102012109580A1 (de) * 2012-10-09 2014-04-10 Prüftechnik Dieter Busch AG Sensoranordnung und Verfahren zum Herstellen einer Sensoranordnung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR547094A (es) * 1922-11-30
US2606790A (en) * 1949-07-28 1952-08-12 Institution Catholique Des Sou Atomizer
US2799741A (en) * 1954-11-09 1957-07-16 Ullman Otto Ingemar Contact initiating apparatus for alarm purposes
DE1797828U (de) * 1959-07-27 1959-10-15 Sennheiser Electronic Neigungsempfindlicher schalter.
GB1162994A (en) * 1966-10-10 1969-09-04 Inertia Switch Ltd Improvements in or relating to Electric Switches
GB1263076A (en) * 1968-04-19 1972-02-09 Cb Ass Ltd Vibration switch
US3763484A (en) * 1972-09-27 1973-10-02 W Byers Inertia-tilt switch
US3886339A (en) * 1973-12-26 1975-05-27 Arthur R Jubenville Sensing device for automatic brake system including inertia switch with magnetic holding means
US4020302A (en) * 1975-02-21 1977-04-26 Nissan Motor Co., Ltd. Sensor having spring biasing structure to retain conductive bridging inertial mass in a non-operative position
US4086807A (en) * 1975-08-05 1978-05-02 Subaru Denshi Seiki Kabushiki Kaisha Quake-sensing starting device

Also Published As

Publication number Publication date
US4212208A (en) 1980-07-15
EP0001154B1 (en) 1981-08-12
AU3829878A (en) 1980-01-31
DE2860939D1 (en) 1981-11-12
CA1124383A (en) 1982-05-25
AU521395B2 (en) 1982-04-01
EP0001154A1 (en) 1979-03-21

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