ZA743698B - Self-regulating electrical switching device - Google Patents
Self-regulating electrical switching deviceInfo
- Publication number
- ZA743698B ZA743698B ZA00743698A ZA743698A ZA743698B ZA 743698 B ZA743698 B ZA 743698B ZA 00743698 A ZA00743698 A ZA 00743698A ZA 743698 A ZA743698 A ZA 743698A ZA 743698 B ZA743698 B ZA 743698B
- Authority
- ZA
- South Africa
- Prior art keywords
- self
- switching device
- electrical switching
- regulating electrical
- regulating
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Switch Cases, Indication, And Locking (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL42470A IL42470A (en) | 1973-06-11 | 1973-06-11 | A circuit breaker that responds to sudden movements |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA743698B true ZA743698B (en) | 1976-01-28 |
Family
ID=11047163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00743698A ZA743698B (en) | 1973-06-11 | 1974-06-11 | Self-regulating electrical switching device |
Country Status (8)
Country | Link |
---|---|
US (1) | US3912893A (xx) |
BE (1) | BE816169A (xx) |
CA (1) | CA1027206A (xx) |
DE (1) | DE2427131C2 (xx) |
IL (1) | IL42470A (xx) |
IT (1) | IT1014956B (xx) |
NL (1) | NL178205C (xx) |
ZA (1) | ZA743698B (xx) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4234768A (en) * | 1974-12-23 | 1980-11-18 | Sie, Inc. | Selective fire perforating gun switch |
US4140045A (en) * | 1975-11-19 | 1979-02-20 | Fenix & Scisson, Inc. | Piston positioning indicator |
IL69945A (en) * | 1983-10-10 | 1987-12-20 | Israel Aircraft Ind Ltd | Taut wire fence system and sensor therefor |
IL70087A (en) * | 1983-10-30 | 1988-06-30 | Israel Aircraft Ind Ltd | Taut wire fence system |
IL78856A (en) * | 1986-05-20 | 1990-07-12 | Magal Security Systems Ltd | Sensor for a security fence |
EP0540500A3 (en) * | 1986-12-02 | 1993-05-19 | Nibex Company, Ltd. | Temperature sensor |
US4829287A (en) * | 1987-03-03 | 1989-05-09 | Hitek-Proteck Systems Incorporated | Taut wire intrusion detection system |
US6578438B2 (en) * | 2001-08-17 | 2003-06-17 | Integrated Detection Systems | Taut wire sensor |
US6891472B2 (en) | 2002-02-06 | 2005-05-10 | Erven Tallman | Taut wire wireless perimeter fence security system |
JP2005116371A (ja) * | 2003-10-08 | 2005-04-28 | Mitsubishi Electric Corp | 加速度検知装置 |
FR2978277B1 (fr) * | 2011-07-18 | 2016-12-23 | Eryma Sas | Dispositif de detection d'intrusion |
WO2014168627A1 (en) * | 2013-04-11 | 2014-10-16 | Halliburton Energy Services, Inc. | Support bracket for selective fire switches |
IL253799B (en) | 2017-08-02 | 2018-06-28 | Igal Igor Zlochin | Retroreflective interferometer |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2345771A (en) * | 1941-10-21 | 1944-04-04 | Du Pont | Alarm system |
US2863017A (en) * | 1956-07-24 | 1958-12-02 | Gaylord Prod Inc | Speed responsive electric switch |
DE1088272B (de) * | 1957-05-20 | 1960-09-01 | Robertshaw Fulton Controls Co | Beschleunigungsfuehlgeraet |
US3516279A (en) * | 1967-02-23 | 1970-06-23 | Alphamatic Corp | Method for adjusting a pressure operated switch utilizing the nonlinear properties of a biasing means |
DE1959229C3 (de) * | 1968-07-19 | 1978-12-21 | Israel Aircraft Industries, Ltd., Lod Airport (Israel) | Durch plötzliche Bewegung eines äußeren Glieds betätigbarer elektrischer Schalter mit einem fließfähigen Material |
-
1973
- 1973-06-11 IL IL42470A patent/IL42470A/en unknown
-
1974
- 1974-06-05 DE DE2427131A patent/DE2427131C2/de not_active Expired
- 1974-06-06 NL NLAANVRAGE7407588,A patent/NL178205C/xx not_active IP Right Cessation
- 1974-06-07 CA CA201,949A patent/CA1027206A/en not_active Expired
- 1974-06-07 US US477445A patent/US3912893A/en not_active Expired - Lifetime
- 1974-06-11 IT IT23848/74A patent/IT1014956B/it active
- 1974-06-11 BE BE145283A patent/BE816169A/xx not_active IP Right Cessation
- 1974-06-11 ZA ZA00743698A patent/ZA743698B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2427131C2 (de) | 1985-10-17 |
IL42470A (en) | 1976-01-30 |
IT1014956B (it) | 1977-04-30 |
NL178205C (nl) | 1986-02-03 |
US3912893A (en) | 1975-10-14 |
CA1027206A (en) | 1978-02-28 |
NL7407588A (xx) | 1974-12-13 |
IL42470A0 (en) | 1974-06-30 |
NL178205B (nl) | 1985-09-02 |
DE2427131A1 (de) | 1975-01-02 |
BE816169A (nl) | 1974-12-11 |
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