61 |
Magnetic switch assembly |
US10717762 |
2003-11-20 |
US07023308B2 |
2006-04-04 |
Randall Woods |
A magnetic switch (10) for detecting relative movement between first and second members (12, 14) is provided which includes a switch assembly (20, 50, 70) for mounting in one of the members (12, 14), an attractive component (22, 54, 76) for mounting on the other member; the assembly (20, 50, 70) preferably includes plural switch elements (40, 26, 70, 56, 92, 80) and a conductive, shiftable body (44), whereas the component (22, 54, 76) is magnetically attractive to the body (44). The first switch elements (40, 70, 92) are preferably formed of a magnetically attractive material while the body (44) is fabricated from permanently magnetized material, so that the body (44) remains permanently magnetically coupled with the element(s) (40, 70, 92) in all positions of the body (44). Alternately, the switch assemblies (20, 50, 70) can be used as proximity detectors so as to generate a signal in the presence of an adjacent ferrometallic or permanently magnetized object (108). |
62 |
Magnetic switch assembly |
US10247170 |
2002-09-19 |
US06603378B1 |
2003-08-05 |
John M. Collins |
An improved magnetic switch (10) is provided which is designed for use in an alarm circuit (52) in order to detect relative movement between first and second members such as a door (14) and frame (12), so as to signal unauthorized opening of the door (14). The switch (10) includes a switch assembly (20) for mounting in frame (12) and having first and second switch elements (40, 42), an electrically conductive shiftable body (44) adjacent the elements (40, 42), and a first attractive component (45). Additionally, the switch (10) has a second attractive component (22) for mounting to the door (14). In use when door (14) is closed and circuit (52) is armed, the magnetic attraction between body (44) and component (22) shifts the body (44) to a switch position where the body (44) is out of simultaneous contact with the switch elements (40, 42). If the door (14) is opened, the magnetic attraction between body (44) and component (45) moves the body to another switch position establishing simultaneous contact with the switch elements (40, 42). |
63 |
MAGNETIC SWITCH |
US09909216 |
2001-07-19 |
US20030015408A1 |
2003-01-23 |
Randy
Woods |
An improved magnetic switch (10) is provided which is designed for use in an alarm circuit (52) in order to detect relative movement between first and second members such as a door (14) and frame (12), so as to signal unauthorized opening of the door (14). The switch (10) includes a switch assembly for mounting in frame (12) and having first and second switch elements (40,42), a permanently magnetized, shiftable body (44) adjacent the elements (40,42), and a first attractive component (36). Additionally, the switch (10) has a second attractive component (22) for mounting to the door (14), which is in the form of a ferromagnetic component such as a permanent magnet (50) or steel plate (60). In use when door (14) is closed and circuit (52) is armed, the magnetic attraction between body (44) and component (22) shifts the body (44) to a switch-closed position in simultaneous contact with the switch elements (40, 42). If the door (14) is opened, the magnetic attraction between body (44) and component (36) moves the body to a switch-open position out of simultaneous contact with the switch elements (40, 42), thus triggering circuit (52). If an intruder attempts to defeat the switch (10) through an external magnet (58), this again moves the body (44) to a switch-open position, triggering the circuit (52). |
64 |
Magnetic switch |
US09909216 |
2001-07-19 |
US06506987B1 |
2003-01-14 |
Randy Woods |
An improved magnetic switch (10) is provided which is designed for use in an alarm circuit (52) in order to detect relative movement between first and second members such as a door (14) and frame (12), so as to signal unauthorized opening of the door (14). The switch (10) includes a switch assembly for mounting in frame (12) and having first and second switch elements (40, 42), a permanently magnetized, shiftable body (44) adjacent the elements (40,42), and a first attractive component (36). Additionally, the switch (10) has a second attractive component (22) for mounting to the door (14), which is in the form of a ferromagnetic component such as a permanent magnet (50) or steel plate (60). In use when door (14) is closed and circuit (52) is armed, the magnetic attraction between body (44) and component (22) shifts the body (44) to a switch-closed position in simultaneous contact with the switch elements (40, 42). If the door (14) is opened, the magnetic attraction between body (44) and component (36) moves the body to a switch-open position out of simultaneous contact with the switch elements (40, 42), thus triggering circuit (52). If an intruder attempts to defeat the switch (10) through an external magnet (58), this again moves the body (44) to a switch-open position, triggering the circuit (52). |
65 |
Magnetic proximity switch system |
US844968 |
1997-04-28 |
US5877664A |
1999-03-02 |
John T. Jackson, Jr. |
A proximity switch system includes a switch portion, configured to connect and disconnect at least one electrical path, and a magnetically active actuator. The switch portion has a casing formed of a magnetically noninteracting material, at least one electrical contact disposed in the casing, a magnetically active armature member moveable along the casing between a first position and a second position, wherein the armature member contacts the electrical contact when in the first position to connect the at least one electrical path and the armature member being electrically isolated from the electric contact when in the second position to disconnect the at least one electrical path, and a magnetically active biasing member disposed in the casing, wherein the biasing member magnetically interacts with the armature member to bias the armature member in one of the first and second positions. The magnetically active actuator is movable with respect to the switch portion between proximal and distal positions. The actuator magnetically interacts with the armature member when in the proximal position to move the armature to the other one of the first and second positions, and at least one of the armature member and the biasing member include a magnet. |
66 |
Device for setting up contact connections between independent electrical
circuits |
US46562 |
1979-06-07 |
US4359704A |
1982-11-16 |
Philippe Cloup |
A device for setting up a contact connection between independent electrical circuits, which comprises a plate made of magnetic material 1 on which is placed a sheet 2 of insulating material, supporting at least two independent conductor circuits 3, 4 adapted to be connected together by means of a magnetized conductive member 6, held in position by the attraction of the said magnetic plate 1.The invention relates to a device used in games and in the audio-visual field. |
67 |
Magnetic switch for game boards with movable magnet contact |
US3739117D |
1972-03-08 |
US3739117A |
1973-06-12 |
MELTON R |
The magnetic switch comprises a plastic enclosure located beneath the playing surface of a game board. A sheet or strip of copper foil is secured to the underside of the top wall of the enclosure and a second sheet or strip is secured to the upper surface of the bottom wall. These sheets are connected into a signal circuit by leads. A bar magnet rests on the lower conductive sheet. A playing piece has a magnet embedded in it. When the playing piece is moved over the proper pole of the bar magnet, one end will be elevated into contact with the upper conductive sheet, thus closing the electric signal circuit. A paramagnetic cup may be substituted for the bar magnet, or a steel ball may be substituted for the playing piece.
|
68 |
Magnetic switch |
US65526857 |
1957-04-26 |
US2900471A |
1959-08-18 |
ASKE LEONARD E |
|
69 |
전자 개폐기 |
KR1020140087645 |
2014-07-11 |
KR101846224B1 |
2018-04-06 |
손솔산 |
본발명의일 실시예는, 하우징; 상기하우징의내측에결합되는실린더; 상기하우징에결합되고, 상기하우징과결합되는고정접촉자; 상기하우징의내부에서이동가능하게위치하여, 상기고정접촉자와접촉또는분리되는가동접촉자; 상기하우징내부에설치되어, 전류가인가되면자기장을형성하는코일어셈블리; 상기가동접촉자와상측에서결합되는가동샤프트; 상기실린더의내측에삽입되고, 상기가동샤프트를둘러싸고있는고정코어;및상기구동샤프트에고정되어, 상기코일어셈블리에형성된자기장에의해상기구동샤프트를가압하여이동시키는가동코어;를포함하고상기가동코어는, 상기가동샤프트측으로연장되고상기가동샤프트에고정되는돌출부를포함하고, 상기고정코어는상기돌출부를수용할수 있는수용부를포함하는전자개폐기를개시한다. 본발명에따르면, 가동코어는돌출부를포함하고, 고정코어는수용부를포함하여, 가동코어의돌출부가고정코어의수용부내에서이동됨에따라, 접압스프링의최대압축거리는늘어나게되고, 전자개폐기의단락성능이향상될수 있다. |
70 |
리드스위치를 이용한 감지기 |
KR2019990002482 |
1999-02-10 |
KR2020000017162U |
2000-09-25 |
안성환 |
본고안은물탱크나기름통의부족을알리는감지장치로서물이나기름이부족할경우상태를눈으로직접확인할필요가없고부착된경보기가작동함으로써완전히떨어지기전에보충을할 수있다. 본고안은영구자석이근접하면작동하는간단한원리로, 물이나기름이충분할경우부레가뜨게되고, 부족할경우부레가내려가부레에내장된영구자석이리드스위치를작동시키는역할을하게된다. 또탱크제작후 장착이용이하고, 리드스위치와영구자석이내장된부레를일체화시켜소형제작이가능하고, 탱크의크기에도상관이없다. |
71 |
MAGNETIC SWITCH ASSEMBLY |
PCT/US0328687 |
2003-09-10 |
WO2004027797A3 |
2004-05-06 |
COLLINS JOHN M |
An improved magnetic switch (10) is provided which is designed for use in an alarm circuit (52) in order to detect relative movement between first and second members such as a door (14) and frame (12), so as to signal unauthorized opening of the door (14). The switch (10) includes a switch assembly (20) for mounting in frame (12) and having first and second switch elements (40, 42), an electrically conductive, shiftable body (44) adjacent the elements (40, 42), and a first attractive component (45). Additionally, the switch (10) has a second attractive component (22) for mounting to the door (14). In use when door (14) is closed and circuit (52) is armed, the magnetic attraction between body (44) and component (22) shifts the body (44) to a switch position where the body (44) is out of simultaneous contact with the switch elements (40, 42). If the door (14) is opened, the magnetic attraction between body (44) and component (45) moves the body to another switch position establishing simultaneous contact with the switch elements (40, 42). |
72 |
IMPROVED HIGH SECURITY SWITCH ASSEMBLY |
PCT/US2012022767 |
2012-01-26 |
WO2012106180A3 |
2013-01-31 |
WOODS RANDALL; HEDEEN JOSEPH |
Tamper-resistant switch assemblies (26, 162) are provided including a first movement-sensing switch (28) and a second tamper-sensing switch assembly (30), the latter including a switchable component (32) and an actuating component (34). Preferably, the switch (28) and switch assembly (30) are housed within an encapsulated switch module (70, 114, 164), with the actuating component (34, 118, 138, 166) positioned above or to the side of the module (70, 114, 164). Mounting structure (36) serves to support the module (70, 114, 164) within a mounting opening (90, 112, 148) and is operable to prevent removal of the switchable component (32) and actuating component (34, 118, 138, 166) without significant relative shifting movement between the switchable component (32) and actuating component (34, 118, 138, 166). Any attempted tampering results in such relative shifting movement, thereby triggering an alarm. In another aspect, the invention provides switch apparatus (182) including a magnetic ball switch (32) with a first biasing magnetic component (194) and a second operating magnet component (196). Adjustment structure (190, 192) permits selective adjustment of the position of magnetic component (194) in order to permit tuning of the apparatus (182) so as to prevent defeat thereof by means of a defeat magnet (198) positioned between the magnet components (194, 196). |