Abstract: The disclosure provides an electric drill comprising: a housing; a motor for driving the electric drill to work; an output assembly for outputting the power of the motor; a first brake assembly including a driving disc and a driven disc respectively arranged on the transmission shaft and the output shaft, the driving disc being meshed with the driven disc to transmit power in a non-braking state, and the driving disc and the driven disc being displaced in the axial direction to be separated from each other in a braking state to stop transmitting power; and a second brake assembly including a mass block and a micro switch connected with the motor, and in a braking state, the mass block displacing and triggering the micro switch to stop the motor.

Abstract: A valve controller device for controlling a set of one or more solenoid valves is provided. The valve controller comprises an accelerometer for making acceleration measurements in three directions comprising acceleration measurements in a vertical direction. The valve controller comprises a processing unit that determines the arrival of seismic P-waves when the ratio of vibrations' power in the vertical direction with respect to a sum of the vibrations' power in the three directions exceeds a first threshold. The processing unit then determines the arrival of seismic S-waves when the vector sum of the vibrations' power in the three directions exceeds a second threshold. The processing unit then determines the arrival of seismic surface waves when the vector sum of the vibrations' power in the three directions exceeds a third threshold. The processing unit then sends one or more signals to close the set of solenoid valves.

Abstract: A mounting assembly is provided for coupling a monitoring device to a valve assembly for relieving vacuum and over pressure conditions in a storage container. The valve assembly includes a body including a first port adapted to be in fluid communication with the storage container and a first valve seat disposed in the body, and a first control assembly including a first valve stem and a first closure element coupled to the first valve stem, the first closure member being movable relative to the first valve seat in response to changes in pressure in the container. The mounting assembly includes a mounting bracket adapted to be coupled to a portion of the body and a mounting tube configured to be slidably coupled to the mounting bracket. The mounting tube is adapted to receive the monitoring device, which is configured to obtain data indicative of the operation of the valve assembly.

Abstract: An electronic conditioning device delivers electric shocks correlated with sounds or driven by a signal associated with a sound sequence. The sound sequence can be a few seconds of a recorded human voice, a siren, a single tone, and so forth. A sound generator emits the sound sequence audibly. A power supply is electrically connected to the various components and provides energy to a shock inducer or electrodes embedded in the skin of a target. The device administers voltage spikes and sounds in a coordinated fashion. The conditioning encourages the target to associate certain sounds with the electric shock. Power may be supplied by a battery, a piezoelectric flexible film or movable magnet that converts kinetic motion into electric energy. Preferably, the device is applied to a target by loading the device into a shotgun shell and firing the loaded shell at the target from a rifle, pistol or shotgun.

Abstract: A projectile that includes a shocking function is presented. The projectile, such as an arrow, is structured to shock an animal as the arrow strikes its target. A capacitor may be used to store energy to generate the shock, or a shocking circuit may be self-contained. The shocking mechanism may be controlled by switch. In other embodiments electrically isolated electrodes could be present on the arrow, including the broadhead, that automatically cause the shocking system to discharge when the arrow has reached its target. The shocking function may be combined with a vibrating function for an even more lethal strike.

Abstract: A multidirectional switch includes a base, a weight coupled to the base via resilient member, and at least first and second contacts coupled to the base. The weight is biased toward a neutral position spaced from the first and second contacts. The weight is movable toward and contacts the first contact when a first force is applied to the base, which deforms the resilient member in a first direction. The weight is movable toward and contacts the second contact when a second force is applied to the base, which deforms the resilient member in a second direction different than the first direction.

Abstract: What is disclosed is a multi-directional momentum-change sensor, adaptable to a variety of practical applications, including, but not limited to, its use as a collision-detector for automatic passenger-safety airbag deployment systems in a motor vehicle. In one embodiment, the sensor is an electro-mechanical switch having a pivotable boom assembly that is responsive to sudden changes to forward and lateral momentum that exceeds a predetermined threshold. The pivotable boom assembly is able to close electrical circuits to external circuitry that pertain to the position of the boom member in order to allow for the sensing of collisions along different vectors and facilitate safety responses, such as the deployment of automobile passenger-safety airbags.

Abstract: A hermetically packaged G-switch includes a MEMS structure having a bottom substrate layer, a top device layer and an intermediate oxide layer. A mass disposed in the top device layer is connected to one, two or three anchor portions using spring arms. One end of a spring arm is connected to the mass and another end to an anchor portion. The connection to the anchor portion includes a T shaped arrangement, which has a torsional spring cross piece connected to the spring arm. A cap containing a conductive pad is hermetically sealed to the MEMS structure. When a predetermined acceleration is attained, the mass makes electrical contact with the conductive pad to close the G-switch.

Abstract: This application is directed to a shock sensor mounted in an electronic device. The shock sensor includes both active and passive shock detection methods that allow a technician to determine whether the electronic device was subjected to a shock event that exceeded an impact threshold level. The shock sensor may include shock detection contacts that form an electrical circuit that remains open in the absence of a shock event that exceeds an impact threshold level. In response to a significant shock event, a movable component or substance of the shock sensor may move from a first position to a second position, thereby closing the electrical circuit formed by the shock detection contacts. The change in circuit may be detected and used to provide active indication of whether the electronic device has been subjected to a substantial shock event. In addition, the shock sensor may be observed to passively determine whether the electronic device has been subjected to a substantial shock event.

Abstract: A data processing system including a data storage device having data stored on a data storage medium. Within said data processing system, a system electronics is operatively coupled to a sensor and to said data storage device. When the sensor senses a change in gravitational or inertial acceleration of said data processing system, it alerts system electronics to temporarily park a read/write head in a safe position.

Abstract: A data processing system including a data storage device having data stored on a data storage medium. Within said data processing system, a system electronics is operatively coupled to a sensor and to said data storage device. When the sensor senses a change in gravitational or inertial acceleration of said data processing system, it alerts system electronics to temporarily park a read/write head in a safe position.

Abstract: 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 direction opposite to a rotational direction in which the rotor is rotated by the deceleration. One axial end of the coil spring is supported by a first support integrally formed with the rotor, and the other axial end of the coil spring is supported by a second support formed separately from the rotor. In this manner, a friction torque generated between the coil spring and the second support is eliminated, thereby considerably reducing a total friction torque associated with rotation of the rotor. The second support may be formed either integrally with or separately from a housing supporting the shaft.

Abstract: 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 closing a circuit on deceleration to provide electrical power to illuminate the light emitting diodes.

Abstract: 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 connects to the spring, and a conductive can around and spaced from the spring. The cap closes and seals the open end of the can. Acceleration of the motion sensor causes the coil spring to make electrical contact with the can to act as a switch closure.

Abstract: 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 movable portion, which has a movable electrode, and a fixed electrode. The movable portion includes an inertial weight moved in accordance with the application of acceleration, a beam portion for pivotably supporting the inertial weight, and a plurality of flexible plates that are arranged in the inertial weight and each have a distal end in which the movable electrode is located and are flexed separately from one another. The flexible plates separately move to contact the fixed portion when acceleration is applied from a direction other than a predetermined direction.

Abstract: A data processing system including a data storage device having data stored on a data storage medium. Within said data processing system, a system electronics is operatively coupled to a sensor and to said data storage device. When the sensor senses a change in gravitational or inertial acceleration of said data processing system, it alerts system electronics to temporarily park a read/write head in a safe position.

Abstract: 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 detecting circuit region and a sensor switching region connected to and positioned adjacent the switch detecting circuit region. The sensor switching region preferably includes a plurality of floating contacts positioned adjacent and lengthwise extending outwardly from said switch detecting circuit region for defining a plurality of released beams so that each of said plurality of released beams displaces in a predetermined direction responsive to acceleration. The plurality of released beams preferably includes at least two released beams lengthwise extending outwardly from the switch detecting circuit region to different predetermined lengths and at least two released beams lengthwise extending outwardly from the switch detecting circuit region to substantially the same predetermined lengths.

Abstract: 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). A direction of movement of the switch member (40) relative to the object (16) is indicative of a direction of rotation of the object (16). Inertia of the switch member (40) during initial rotation of the object (16) results in relative movement of the switch member (4) away from the neutral position. Centrifugal force during object (16) rotation further enhances the relative movement of the switch member (40). The sensor (36) also comprises a device (56) for monitoring a direction of movement of the switch member (40) and for providing a signal indicative thereof.

Abstract: 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 connected to rotor, and a pair of contacts consisting of a movable contact and a stationary contact. The rotor rotates together with the cam when a deceleration exceeding a predetermined level is imposed on the rotor. The pair of contacts are closed by the cam thereby to generate an electrical signal to inflate an air-bag. The movable contact is made of a resilient leaf spring, while the stationary contact is made of a plate having a high rigidity, so that resonant vibrations of the stationary contact otherwise caused by a high deceleration impact are avoided.

Abstract: An acceleration switch that improves detection sensitivity without being enlarged. The acceleration switch includes a switch body, a fixed electrode arranged in the switch body, and a movable weight arranged in the switch body. The movable weight is displaced when subjected to acceleration. The movable weight includes a movable electrode that contacts the fixed electrode when the movable weight is displaced, and a pair of beams connecting the movable weight and the switch body. The beams pivotally support the movable weight and extend into recesses formed in the movable weight.

Abstract: This disclosure is directed to an earthquake or shock responsive electric relay, shutting off electric power, or actuating the use of power in lights, motors, alarms or any electric device, which includes any electric device used to stop the flow of water,gas oil or steam. The device utilizes a common relay type design whereby its reacting parts are balanced between a weight and a spring, a relay centered between upper and lower contactors so that upon occurrence of an earthquake or other violent shock, the device cannot remain balanced, thus causing the relay to conduct the contactor. After the shock has subsided, the relay returns to the balanced-position which is equal centered distance between the upper and lower contactors. The sensitivity of the device is controllable.

Abstract: Charge transient errors in an inertial sensor are substantially reduced, by forming an ion-implanted, conductive layer on a surface of a dielectric substrate. The substrate has at least two electrodes disposed thereon, and includes a plurality of alkali atoms dispersed near the substrate surface. A proof mass having a conductive, planar surface is supported relative to the substrate, so that the conductive surface of the proof mass is opposite to and nominally parallel with the substrate surface between the electrodes. A plurality of ions are implanted near the substrate surface and between the electrodes. The implantation dose is sufficient to decrease a resistivity of the ion-implanted layer from a relatively high, substantially ion-based resistivity to a relatively low, substantially electron-based resistivity, and to reduce the charge transient time constant of the sensor to the order of milliseconds.

Abstract: An acceleration switch that improves detection sensitivity without being enlarged. The acceleration switch includes a switch body, a fixed electrode arranged in the switch body, and a movable weight arranged in the switch body. The movable weight is displaced when subjected to acceleration. The movable weight includes a movable electrode that contacts the fixed electrode when the movable weight is displaced, and a pair of beams connecting the movable weight and the switch body. The beams pivotally support the movable weight and extend into recesses formed in the movable weight.

Abstract: 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.

Abstract: 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 rocking switch, a capacitor, a voice IC, and a sound device. The spring rocking switch is connected to the power source. The voice IC is driven to output a specific signal when the spring rocking switch is on and electricity is conducted. The voice amplifying circuit receives the signal from the voice IC and outputs an amplified signal to the sound device for giving specific voices recorded in the voice IC. When the fire extinguisher is rocked, the voice device will automatically tell the user how to operate the fire extinguisher.