| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Glass encapsulated extended dwell shock sensor | US08587292 | 1996-01-12 | US06313418B1 | 2001-11-06 | Daniel R. Reneau |
| A shock sensor has a sensing mass mounted on a metallic reed or spring which, under the influence of a crash-induced acceleration, drives the spring against a contact to close an electrical circuit. The contact end of the spring is twisted to be oriented with respect to the fixed contact at an angle of 60 degrees out of the plane containing the spring. The sensor is oriented such that the acceleration force is approximately normal to the plane containing the spring. The angled contact increases reliability, reduces closure signal noise, and increases contact dwell time. Dwell time can be further enhanced for high shock loads by providing a two stage mass spring system. A second mass/spring combination is arranged so the motion of the second mass, after the first reed has made electrical contact, holds the contact closed. | ||||||
| 62 | Pendulum mass acceleration sensor | US09401055 | 1999-09-22 | US06184764B2 | 2001-02-06 | Paul K. Edwards; Richard G. Simpson |
| A bidirectional shock sensor has a housing mounted directly to a printed circuit board. The housing contains a switch or sensor embedded in the housing and is connected by leads to the circuit board. A pendulum sensing mass is suspended from two flexible pendulum arms. The arms come together where they are attached to the housing and constrain the mass to swing along an arc that lies in a plane. A magnet either forms the sensing mass or is mounted to the sensing mass. A reed switch or Giant Magneto-Restrictive (GMR) type sensor is encapsulated within the base of the housing. When a shock causes motion of the sensing mass and the magnet the motion is detected by the sensor or switch. | ||||||
| 63 | Mechanical inertia switch | US892364 | 1997-07-14 | US5969311A | 1999-10-19 | Gerhard Mader |
| A mechanical inertia switch in a housing has an elastic tongue with an inertial mass as well as a contact piece. The elastic tongue has a stable neutral position and can be moved in the direction of the contact piece against a force, for example a magnetic force or a force due to preloading of the elastic tongue, which acts in addition to a spring force of the elastic tongue. The compact mechanical inertia switch has a small number of components and short switching times. The elastic tongue is prevented from oscillating. It is thus possible to use the mechanical inertia switch as a safing sensor for detecting side impact. | ||||||
| 64 | Inertia or gravity responsive tilt switch | US247759 | 1994-05-23 | US5457293A | 1995-10-10 | David S. Breed |
| A unique geometry is used to amplify the force created by gravity on a tilting mass to substantially increase the resulting contact force in a mechanical tilt switch. In some cases a novel contact surface containing abrasive particles is also used to substantially reduce the contact force required to achieve a low contact resistance. The combination of these two features permits a substantial reduction in the size of the seismic mass needed for mechanical tilt switches and results in a switch which has a comparable size and comparable performance to mercury switches without the use of mercury. In some applications the effect of vibration is reduced by partially filling the switch housing with a damping fluid. | ||||||
| 65 | Impact sensor for vehicle safety restraint system | US950315 | 1992-09-24 | US5430334A | 1995-07-04 | Jack B. Meister |
| A vehicle restraint system that includes an impact sensor coupled by fiber optics to an igniter for inflating an air bag. The impact sensor includes a permanent magnet disposed within a cavity and biased by magnetic force toward one end of the cavity, motion of the magnet in the cavity being sensed by a weigand wire or Hall sensor for igniting the air bag. Facility is disposed externally of the cavity for selectively adjusting the bias of the sensor and/or moving the magnet into proximity with the Hall effect or weigand wire sensor to test operative condition of the sensor. | ||||||
| 66 | Shock sensor including a compound housing and magnetically operated reed switch | US292340 | 1994-08-17 | US5416293A | 1995-05-16 | Daniel R. Reneau |
| A shock sensor has a housing with two portions. A first portion resiliently engages a reed switch which has staple formed leads. A second portion extends adjacent one of the reed switch leads and has modular components which permit consistent shock-sensing results to be obtained from reed switches of varying sensitivity by selection of appropriate components. The second portion is a closed-ended hollow tube in which a bobbin with a centrally located guide bar is inserted. A first disk extends outwardly from the guide bar. A self-test coil is positioned on the bar between the first disk and a second disk. A biasing spring extends between the closed end of the tube and the magnet, which is mounted on the bar. The magnet is abutted against a second disk which extends from the bar. The second disk positions the actuation magnet with respect to the reed switch when it is in its non-actuated position. By substituting different bobbin and the actuation springs, shock sensors are easily created which achieve identical functions with reed switches of varying amp turn requirements for actuation. | ||||||
| 67 | Air bag arming device including steering shaft rotation sensor | US43528 | 1993-04-06 | US5387006A | 1995-02-07 | Kyriakos Vavalidis; Denis Bourcart; Thomas Gornig |
| The inflatable safety cushion for a vehicle comprises an electric arming device (19) which is capable of detecting a dangerous situation and of very rapidly actuating a pyrotechnic gas generator for triggering said safety cushion, and which is powered by a cell (12). It also comprises an arming device (20, 21) for detecting that the vehicle is being used in order automatically to arm the device (19) as soon as it is detected that the vehicle is being used, and a device (21a) for interrupting the armed state as soon as, for a predetermined length of time, no use of the vehicle has been detected. | ||||||
| 68 | Shock sensor with a magnetically operated reed switch | US745070 | 1991-08-14 | US5194706A | 1993-03-16 | Daniel R. Reneau |
| A shock sensor has a housing defining an axially extending bore, a reed switch is centered within the bore by means of its axially extending leads and a transverse section of the housing which has an axially extending hole which centers one of the leads of the reed switch with the housing. The other lead of the reed switch is centered by a first retainer, which is fixed within the bore to align the reed switch within the housing with the axis of the housing. An activation magnet, is slidably mounted within the bore of the housing, and has a central hole passing over one of the axially extending leads. The magnet is biased by a spring away from the end activation region of the reed switch, which is near an end of the glass capsule which encloses the reed switch. The spring biases the activation magnet against a second retainer so that when the housing is not undergoing acceleration the activation magnet is biased to a position where the switch is not activated. The first and second retainers and perpendicular mounting leads are welded to the axial leads and are sealed from the atmosphere and joined to the bore of the housing by cast-in-place epoxy. | ||||||
| 69 | Deceleration switch | US404413 | 1989-09-08 | US4987276A | 1991-01-22 | Heinz Bader; Georg Sterler |
| A deceleration switch comprising a support member, a permanent magnet mounted on the support member and displaceable from a first position to a second position by inertia caused by a predetermined deceleration of the support member, a spring mounted on the support member for biasing the permanent magnet toward the first position, a set of electrical contacts mounted on the support member and operable to close under the influence of the magnetic field of the permanent magnet when the permanent magnet is in the second position and an inductive device energized to produce a second magnetic field enhancing the magnetic field of the permanent magnet thus causing the contacts to remain closed for a longer period of time upon return of the permanent magnet to its first position under the biasing action of the spring. | ||||||
| 70 | Directional shock detector | US520717 | 1990-05-08 | US4982684A | 1991-01-08 | Ulyss R. Rubey |
| The detector has two disc shaped magnets that are magnetized through their respective thicknesses. One magnet is fixedly coupled to a container, and the other magnet is left free to slide transversely with respect to the fixed magnet. The magnets are oriented so that the opposite poles of the magnets are adjacent to each other. In the absence of a shock acting on the container, the free magnet remains in a centered position with respect to the fixed magnet. Indicating apparatus is provided to indicate when the free magnet is moved to an off-center position due to an accelerational force, and the direction of the accelerational force. In one embodiment, the indicating apparatus includes a marking device coupled to the free magnet and a recording surface coupled to the container. In another embodiment, the indicating apparatus includes a transparent cover and tabs for retaining the off-center free magnet. | ||||||
| 71 | Device and method for testing acceleration shock sensors | US334310 | 1989-04-06 | US4980526A | 1990-12-25 | Daniel R. Reneau |
| A testing device (11) is applied to an acceleration shock sensor (10) of the type having a reed switch (24) that operates such that the net mass of a magnet (40) is accelerated against a spring (50) upon vehicle impact or rapid deceleration of the vehicle. The change in magnet (40) position causes a change in the magnetic field that activates the reed switch (24). The testing device (11) includes an electromagnetic coil (90) mounted in an area of minimal reed switch (24) sensitivity. The electromagnetic coil (90) is connected to be capable of providing a current flow that creates a magnetic field that opposes the magnetic field of the magnet (40). Upon energizing of the coil (90), the magnet (40) is urged to accelerate in a manner that emulates the acceleration of the magnet (40) caused by vehicle collision. | ||||||
| 72 | Acceleration and deceleration sensor | US350677 | 1989-05-11 | US4965416A | 1990-10-23 | Rolf Bachmann |
| An acceleration and deceleration sensor includes a housing; first and second elongate cavities formed in the housing and extending parallel to one another; a reed switch disposed in the first cavity; a first elongate permanent magnet immovably secured in the second cavity; and a second elongate permanent magnet longitudinally slidably received in the second cavity and arranged end-to-end relative to the first magnet. The reed switch and the second magnet are arranged with respect to one another such that upon movement of the second magnet the magnetic field thereof actuates the reed switch. The sensor further has a lid cooperating with the first cavity and has a closed and an open position. In the closed position the lid covers the first cavity and is supported on the housing and in the open position the first cavity is exposed to environment external to the housing. The lid is arranged for movement from the closed position to the open position in a direction transverse to the length dimension of the elongate first cavity. There is further provided an adjustment screw closing an end of the second cavity. | ||||||
| 73 | Extended dwell shock sensing device | US334311 | 1989-04-06 | US4877927A | 1989-10-31 | Daniel R. Reneau |
| An extended dwell shock sensing device (10) is constructed to operate in two stages. A carriage (34) that includes a magnet (40) is slidably mounted between a first abutment (20) and a second abutment (22). The carriage (34) also includes a cradle (52) in which a non-magnetic mass (54) is slidably mounted between a first wall (53) and a second wall (55). At a rest position, the carriage (34) is biased away from the second abutment (22) by a spring (50) and the non-magnetic mass (54) is biased away from the second wall (55) by a spring (58). A reed switch (24) is mounted to be responsive to the position of the magnet (40). Upon application of an acceleration force, the shock sensing device (10) operates in two stages. In a first stage, the carriage (34) travels to a position where it approaches the second abutment (22), and activates the reed switch (24). In a second stage, the non-magnetic mass (54) travels toward the second wall (55). The inertia of the non-magnetic mass (54) resisting a rapid change in the return direction of the carriage (54), combined with the relatively long distance to travel back to the first stage position extends the time that the reed switch (24) stays activated. | ||||||
| 74 | Burglar alarm including a reed relay actuated in response to a vibrating magnet to produce an alarm signal | US133229 | 1987-12-14 | US4864087A | 1989-09-05 | Yu-Hua Chen |
| The present disclosure is directed to an improved burglar alarm which is mounted on a base having a concaved space for receiving therein a ring-like magnet with an elongated resilient arm, vibratable as a result of external force, and a magnetic switch tube actuated in response to the vibrating magnet which changes either the magnet polarity or intensity of the magnetic force thereof so to produce signals to actuate a connected alarm apparatus. | ||||||
| 75 | Relay for the operation of a belt tightener or tensioner for automobile safety belts | US933826 | 1986-11-24 | US4705922A | 1987-11-10 | Gunter A. Seeger; Arno Reger |
| A relay for the operation of a belt tightener or tensioner for automobile safety belts in the event of a collision with an obstacle. The relay consists of a conduit or dry-reed contact arrangement which is arranged in a housing with its longitudinal axis aligned perpendicular to the direction of travel and vertical to the horiztonal plane of the automobile, and an annular magnet surrounding the contact arrangement which is retained perpendicular to the longitudinal axis of the conduit of the contact arrangement by springs, equidistant from the contact arrangement at rest, and movable mainly horizontally. | ||||||
| 76 | Acceleration and deceleration sensor | US663185 | 1984-10-22 | US4639563A | 1987-01-27 | Walter Gunther |
| An acceleration and deceleration sensor for use with safety devices in motor vehicles includes a reed switch and a movably mounted permanent magnet system which closes the switch during a collision. The permanent magnet system is provided by a pair of magnets having like poles which face each other, so that the magnets repel each other. | ||||||
| 77 | Magnetically actuated electric switch | US490372 | 1983-05-02 | US4484041A | 1984-11-20 | Rudolf Andres; Heinz W. Knoll; Volker Petri |
| A magnetically actuated electric switch with a bistable reed switch and with a magnet adapted to be moved past the reed switch within a channel; in its normal position the magnet adheres at a soft iron core and, during occurrence of an acceleration above a predetermined threshold value, is thrown against a compression spring arranged at the other end of the channel; during the to movement, the magnet switches the reed switch into the one stable position and during the fro movement into the other stable position. The switch is suited as acceleration pick-up for vehicles, especially as impact sensor. | ||||||
| 78 | Acceleration sensor with magnetic operated, oscillating reed switch | US3795780D | 1972-08-11 | US3795780A | 1974-03-05 | LAWRIE G |
| A magnetized seismic mass is annular in form, disposed around an elongated hollow tubular body which encloses a magnetic switch. A helical coil spring disposed around the body biases the mass toward one end of the body which is flexibly suspended from a support by a flexible cable.
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| 79 | Inertia switch with magnetic shunting | US3459911D | 1968-01-16 | US3459911A | 1969-08-05 | FISCHER MURRY |
| 80 | Acceleration responsive devices | US73954258 | 1958-06-03 | US2976378A | 1961-03-21 | GODDARD ROBERT W |
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