Matches 1 - 50 out of 71 1 2 >
Match Document Document Title
7235749 Collision impact detector for use in automotive vehicle  
A collision impact detector detects deceleration of a vehicle caused by its collision with another vehicle or an obstacle. A rotor is rotatably supported on a shaft and biased by a coil spring in a...
7170402 Automatic braking light  
An inertia-activated braking light ( 1 ) for attachment to pedal cycles and the like. A display of LEDs ( 15 ) is automatically illuminated on deceleration. This is achieved by an inertia mass...
7151235 Motion sensor  
A motion sensor for tire pressure monitors and other applications includes an insulative collar, a conductive coil spring mounted on the cap, a conductive connector that extend through the cap and...
6797899 Acceleration switch  
An acceleration switch that operates even when acceleration is applied to the acceleration switch from a direction other than a predetermined detection direction. The acceleration switch includes a...
6750775 Integrated sensor having plurality of released beams for sensing acceleration and associated methods  
An integrated circuit and method are provided for sensing activity such as acceleration in a predetermined direction of movement. The integrated released beam sensor preferably includes a switch...
6741170 Apparatus for monitoring rotation of an object about an axis  
A sensor ( 36 ) for monitoring rotation of an object ( 16 ) about an axis ( 20 ) comprises a switch member ( 40 ) that is urged into a neutral position and is movable relative to the object ( 16 )....
6642461 Deceleration impact detector for use in automotive vehicle  
A deceleration impact detector for detecting a vehicle collision or the like is composed of a rotor having an eccentric gravity center, a spring biasing the rotor to its initial position, a cam...
6313418 Glass encapsulated extended dwell shock sensor  
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...
6225914 Automatic voice device for fire extinguisher  
The present invention proposes a voice device for a fire extinguisher. The voice device is installed on a fire extinguisher. The voice device comprises a power source, a control switch, a spring...
6065851 Modified spring switch and light module therefor  
Flashing footwear includes at least one light source located on an external surface of the footwear so as to be visible. A power source provides sufficient power to illuminate the light in response...
5969311 Mechanical inertia switch  
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...
5804783 Air damped crash sensor and construction method thereof  
An air damped crash sensor including a thin planar hinged inertial sensing mass which rotates within a sealed housing with a small clearance between the edges of the mass and the walls of the...
5742235 Vertical, unidirectional seismic switch  
A switch including a mass suspended above a base by a flat horizontal spring has electric contacts that close in response to the initial shocks of major earthquakes and activates safety devices...
5706181 Sensor unit for controlling an occupant protection system of a motor vehicle  
A sensor unit for controlling an occupant protection system has a sensor which is held in its position on a printed circuit board through the use of an elastic damping holder. The damping holder is...
5684456 Tilt-sensor  
A tilt-sensor for detection of a tilt angle is proposed, in particular for use as a roll-over sensor in a car for activation of an occupant protection device, comprising a massive body and an...
5610337 Method of measuring the amplitude and frequency of an acceleration  
A digital accelerometer manufactured from arrays 11a-11e of micro-mechanical sensing elements 12. The sensing elements 12 of different arrays 11a-11e are designed for detecting acceleration in a...
5479150 Bridge failure alarm  
A bridge failure alarm system designed to be used with bridges has a plurality of spans across the length of the bridge, activates an alarm whenever the distance between any two adjacent spans is...
5457293 Inertia or gravity responsive tilt switch  
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...
5424501 Deceleration sensor switch for use in a vehicle occupant safety system  
A deceleration sensor switch (10) comprises a base (12) and a mass (60) pivotable from an unactuated position to an actuated position when the mass is subjected to deceleration of at least a...
5393944 Deceleration switch with a switch base supporting a flexible oscillating one piece plastic mass unit  
A deceleration sensor switch (10) comprises a base (12) and a mass (20) pivotable from an unactuated position to an actuated position when the mass is subjected to deceleration of at least a...
5335941 Vehicle deceleration sensor  
A vehicle-sensitive mechanical contactor for activating a restraining system in vehicles is provided with an inertial mass ball (12) movably accommodated in a housing (10). A first contact spring...
5155307 Passenger compartment crash sensors  
This invention includes crash sensors designed to be used for frontal impact sensing and the strategies of using these sensors. It is analyzed and shown that velocity sensing or damped sernsors are...
5098122 Velocity change sensor with improved spring bias  
An accelerometer for a passenger restrain system in a motor vehicle includes a housing with a path for an inertial element, and a coil spring member for urging the inertial element toward a...
5080362 Adjustable point of impact indicating device  
An impact sensing device (16) is attached to a sporting implement to provide a visual indication of when the implement strikes a sporting object. The device (16) comprises a cylinder (22)...
5031931 Velocity change sensor with spring bias  
An accelerometer for a passenger restrain system in a motor vehicle includes a housing with a path for an inertial element, and spring members for urging the inertial element toward a preselected...
4973804 Low profile inertia switch  
A diaphragm-type inertia switch for sensing deceleration places the inertial mass in the chamber that contains the contacts. The other chamber has a thin concave-convex shape that gives the switch...
4942386 Integrated impact detection and alarm system  
An impact sensing and alarm system having a dual adjustment impact system and alarm circuit for activating selected alarm devices in conjunction with tamper switches connected to provide additional...
4841288 Earthquake illuminating device  
An illuminating device comprises a housing having a light compartment and an off push-button located on the front wall thereof. The housing encloses a battery powered electrical circuit including a...
4814564 Acceleration switch  
A bounce-free acceleration switch includes a resiliently mounted movable contact (14) which cooperates with a counter contact (15). The kinetic energy of the movable contact (14) is transmitted...
4479114 Omnidirectional acceleration alarm and switch therefor  
A security device incorporates apparatus for producing a special alarm sound in response to a change in acceleration sensed with a special omnidirectional sensor and under the control of special...
4458535 Drive defect detector  
This invention is an on-board electro-mechanical system designed to detect and indicate abnormal or defective conditions in any or all wheels of a car while it is in motion at highway speed. Each...
4311891 Vehicle alarm shaker device with spring damper  
A shaker device for automobile alarm systems in which there is a vibratory member for making contact when the vehicle is disturbed and in which the vibratory member is damped by means of a...
4297690 Earthquake alarm system  
An earthquake alarm system detects lateral impulse movements of a building or other structure and generates an audible sound as a result of the lateral detector moving beyond a preset limit. The...
4288777 Parking aid  
A parking aid generates a signal when a vehicle approaches an obstacle, e.g., a garage wall, on which the parking aid is mounted. The distance of the vehicle to the obstacle, at which the aid will...
4262177 Sensor assembly  
A pendulum type sensor includes a housing having a plurality of recesses, each receiving a sensor module. The sensor module includes a mass assembly, a spacer assembly and a contact assembly...
4249046 Inertia sensor switch  
A cantilever type velocity sensor which includes a unitary elongated frame member mounted on spaced walls of a base of dielectric material. A planar spring member has one end portion thereof...
4122445 Breakage detector having a conductive bent metallic leaf spring therein  
The detector is primarily for detecting glass breakage and is constructed as a sensing element for detecting the breakage and generating an alarm signal. The detector generally comprises a thin...
4028516 Acceleration detector switch having magnetic biased conductive oscillating controller  
An acceleration detector using a combination of a bar magnet, an inertial substance or body and a fixed contact, in which the inertial substance is secured to the free end of a plate-spring...
3946359 Motor vehicle safety and/or warning devices  
A device for fitment to a motor vehicle and adapted to close a circuit upon excessive accelerative, decelerative or centrifugal forces being applied thereto, the circuit including means for...
3944764 Inertia sensor switch  
An inertia sensor switch comprises an insulating housing having an electrical contact plate connectable to one electric terminal, an electrical contact mass abuttingly engageable with the...
3924254 Anti-intrusion alarm system  
An anti-intrusion alarm system includes a source of power, a normally open, motion-sensitive switch remotely located with respect to said power source, a normally conducting circuit interrupting...
3896426 Theft alarm employing self-adjusting disturbance switch  
This invention relates to an alarm device comprising a sensitive element and electric circuit arranged for releasing an alarm signal when the sensitive element is exposed to shocks or vibration....
3795780 ACCELERATION SENSOR WITH MAGNETIC OPERATED, OSCILLATING REED SWITCH  
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...
3790727 INERTIA SWITCH WITH RESILIENT CONDUCTIVE SUPPORT ARM IMMERSED IN SILICONE BASE VISCOUS FLUID MEDIUM  
A force actuated electrical switch which discriminates between forces having varying time duration. A pendulum, including a conductive wire secured at one end and fastened to a conductive bob at...
3778572 INERTIA SENSOR SWITCH ASSEMBLIES WITH MAGNETIC HOLDING MEANS OR THE LIKE  
An impact detecting device for use in a motor vehicle safety device, in which the detecting device is made up of a movable contact assembly having a conductive weight which is rockingly suspended...
3762735 SKI BINDING  
Safety ski binding. The ski binding is normally held in engaged position by resilient means such as coil springs and is convertible against said resilient means to a condition for freeing the ski...
3731022 INERTIA TYPE SWITCH WITH COAXIAL CONDUCTIVE SPRINGS  
A motion sensor for sensing shocks, vibrations or the like utilizing a pair of contacts mounted on vibratory supports so that when the supports vibrate the contacts close, completing an electrical...
3725890 MOTION SENSITIVE ALARM SYSTEM  
A motion sensitive alarm system having a sensing mechanism for actuating an alarm device in response to rotational motion, i.e., being tilted, as well as in response to linear motion. The alarm...
3721956 THEFT ALARM OPERABLE BY VIBRATION  
An alarm is attached to a device such as a bicycle and operates when the device is moved. The alarm is controlled by a key switch which is turned on when the device is left unattended and must be...
3709030 VIBRATION DETECTION APPARATUS  
Vibration responsive apparatus including novel vibration sensing means. The vibration sensing means includes a light source, a light-sensitive element positioned for receiving light from the light...
Matches 1 - 50 out of 71 1 2 >