1301 results about "Free falling" patented technology

Method and system for remote control of a drone helicopter and RC plane using a handheld device is disclosed. Piloting commands and actions are performed using the handheld device, which includes a motion sensor module, with gyro-sensor and g-sensor for controlling roll, yaw and pitch of flying object under relative or absolute coordinate system. The gyro-sensor controls both heading and rotation of flying object in place around its yaw by rotating handheld device around its yaw axis; g-sensor controls pitch and roll by rotating handheld device around its pitch axis and roll axes. Upon determining free falling of flying object, throttle is thereby adjusted so as to land it safely. Flying object further has a camera, and video images are transferred wireless to be displayed on touch screen, and image zoom-in and zoom-out are provided via multi-touch of touch screen. RF and IR capability is included for wireless communication.

An impact protection system for a portable device, comprising a housing 20 with a plurality of impact absorbing arms 22 attached to housing 20 and having a retracted position and an extended position; an extension spring 26 connected to each arm provides forceful extension of the arms from their retracted position to their extended position; a free-fall detection sensor 30 defined within housing 20 for detecting dangerous free-fall conditions of the portable device and providing a signal to an activation controller 32 which is responsive to the free-fall detection sensor 30 and connected to the impact absorbing arms 22, whereby the arms are extended from their retracted position to their extended position upon detection of dangerous free-fall conditions to provide impact protection for the portable device.

A dynamic transaction card that includes a transaction card having a number of layers, each of which may be interconnected to one another. For example, a dynamic transaction card may include an outer layer, a potting layer, a sensor layer that may detect and identify a card free fall and / or subsequent impact, which may trigger a microcontroller to send a mobile notification to a cardholder notifying the user that the card has been dropped, and / or may disable or deactivate the card and / or a user account associated with the card, a display layer (including, for example, LEDs, a dot matrix display, and the like), a microcontroller storing firmware, Java applets, Java applet integration, and the like, an EMV™ chip, an energy storage component, one or more antenna (e.g., Bluetooth™ antenna, NFC antenna, and the like), a power management component, a flexible printed circuit board (PCB), a chassis, and / or a card backing layer.

A flow responsive dump valve mechanism for a straddle packer tool and has a valve controlled flow passage from which underflushed fluid, typically well treatment slurry, in a conveyance and fluid supplying tubing string can be dumped into a well casing. The dump valve mechanism incorporates a ratcheting power piston, an indexing mechanism and high and low load energy storage systems to accomplish open, closed and intermediate dump valve positions. The intermediate position increases the functionality of the tool by preventing accidental closure either due to the free fall of fluid through the coiled tubing or during flushing of the tool and permits the flow rate to be increased for thorough cleaning of the straddle tool and coiled tubing. For energy storage, a light compression spring provides power to cycle the indexing mechanism. Heavier load disc springs (Bellville Washers) are used to provide power for the ratcheting power piston to open the valve.

In an integrated free-fall detection device for a portable apparatus an acceleration sensor generates acceleration signals correlated to the components of the acceleration of the portable apparatus along three detection axes. A dedicated purely hardware circuit connected to the acceleration sensor generates a free-fall detection signal in a continuous way and in real-time. The free-fall detection signal has a first logic value in the event that the acceleration signals are simultaneously lower than a respective acceleration threshold, and is sent to a processor unit of the portable apparatus as an interrupt signal to activate appropriate actions of protection for the portable apparatus. Preferably, the acceleration sensor and the dedicated purely hardware circuit are integrated in a single chip and the acceleration sensor is made as a MEMS.

The invention includes a display positioning assembly comprising a support, a display supported by the support, and a balance mechanism carried by the display and operatively connected to the support. The invention also includes an article for selectively exposing a display comprising a generally planar support surface having a first side and a second side opposite the first side. A balance mechanism operatively connected to a display may be positionable between a storage position proximate the first side of the generally planar support surface and an exposed position proximate the second side of the generally planar support surface. The invention also includes an assembly for arresting the free fall of an object. The assembly may comprise an outer slide in sliding or rolling engagement with an inner slide, and a brake comprising at least one pivot member may be coupled to the inner slide.

A device is disclosed which comprises a drinking fountain for animals in the configuration of a free falling stream of water, or continuous waterfall. A pump moves water from a reservoir upward to a discharge ramp, or ramps, where water spills over into a receptacle. The reservoir and receptacle may consist of the same part. The cascade of water takes advantage of a preference demonstrated by animals for moving drinking water. The waterfall action also aerates the water and increases freshness, by breaking the surface tension of the standing water and drawing in oxygen from the atmosphere. Filtration of the circulating water in this self-contained system is easily accomplished.

In an integrated free-fall detection device for a portable apparatus an acceleration sensor generates acceleration signals correlated to the components of the acceleration of the portable apparatus along three detection axes. A dedicated purely hardware circuit connected to the acceleration sensor generates a free-fall detection signal in a continuous way and in real-time. The free-fall detection signal has a first logic value in the event that the acceleration signals are simultaneously lower than a respective acceleration threshold, and is sent to a processor unit of the portable apparatus as an interrupt signal to activate appropriate actions of protection for the portable apparatus. Preferably, the acceleration sensor and the dedicated purely hardware circuit are integrated in a single chip and the acceleration sensor is made as a MEMS.

A system provided for protecting a disk drive from impact damages. More specifically, a disk drive is provided that includes an accelerometer interconnected to a printed circuit board that detects free fall of the disk drive. In addition, the velocity of spinning disks of the disk drive is also monitored to assess changes in velocity thereof that may indicate the presence of a tumbling condition. Furthermore, the change in acceleration measured by the accelerometer is monitored to prevent false indications of free fall due to common vibrations. Thus an enhanced system is provided that protects disk drives from the effect of free falls under a wide variety of conditions and allowing for drops from shorter distances to be identified.

The invention relates to a fall detection system, for detecting human fall incidents. The detection system comprises a sensor module to be worn by a user, for collecting motion data of his body, for instance acceleration data; first evaluation logic for identifying a potential fall incident on the basis of an impact observed in the acceleration data; and second evaluation logic for verifying that the sensor module is actually worn by the user, at least around the time of said impact, to prevent the system from raising an alarm if only the sensor module has fallen. The second evaluation logic may comprise free fall detection means for evaluating the acceleration data on characteristics which are typical for a free falling object, such as one or more full rotation and / or a free falling phase, during which the magnitude of the acceleration data is relatively stable and small. Additionally or alternatively the second evaluation logic may comprise body proximity detection means for detecting whether the sensor module is in close proximity to the human body.

The invention discloses pearl real-time detection and grading system based on machine vision which includes: computer vision recognition component which is equipped under the charging conduit of pearl charging device, and pearl sorting device is equipped under the computer vision recognition component. Using the computer vision technology, collecting image of sequential free-falling pearl surface, sending the collected image to DSP and computers and other hardware apparatus to dealing, then distinguishing the pearl classification standard instantaneously through the dealing results, last sending the distinguishing information to sorting device to achieving classification of pearl with different characteristics automatically using devices. It can get pearl whole surface image, can complete the testing of whole apparent quality index such as pearl size, shape, smooth, defect and color, etc. simultaneously, achieve the rapid real-time detection and grading. The system can adapt to different classification speed, and the structure is simple, adaptability is strong.

A flow responsive dump valve mechanism for a straddle packer tool and has a valve controlled flow passage from which underflushed fluid, typically well treatment slurry, in a conveyance and fluid supplying tubing string can be dumped into a well casing. The dump valve mechanism incorporates a ratcheting power piston, an indexing mechanism and high and low load energy storage systems to accomplish open, closed and intermediate dump valve positions. The intermediate position increases the functionality of the tool by preventing accidental closure either due to the free fall of fluid through the coiled tubing or during flushing of the tool and permits the flow rate to be increased for thorough cleaning of the straddle tool and coiled tubing. For energy storage, a light compression spring provides power to cycle the indexing mechanism. Heavier load disc springs (Bellville Washers) are used to provide power for the ratcheting power piston to open the valve.

A system for determining airtime of a moving sportsman includes at least one accelerometer for detecting vibration or acceleration of the sportsman. A processor in communication with the at least one accelerometer processing signals from the accelerometer to determine free-fall. A pressure sensor may be used to determine change in altitude and the processor may process signals from the pressure sensor with the accelerometer signals to determine airtime and drop distance during free-fall. A method for determining airtime of a moving sportsman includes processing data from one or more accelerometers attached to the sportsman, to determine when the sportsman is in free-fall, and determining a time period corresponding to the free-fall.

The present invention relates to apparatus and method for re-circulating high viscosity liquids. The apparatus comprises a recirculating probe coupled to a fluid storage and dispensing vessel by a connector, and the recirculating probe comprises: (a) a dip tube defining an output flow path; (b) an output port; (c) a recirculating port; and (d) a return flow path. The output flow path and the return flow path preferably have substantially equal cross-sectional areas, which reduce or eliminate the unbalance between the discharge pressure in the output line and that in the re-circulation line, and prevent premature wearing-out of the dispensing / recirculating pump. The output flow path and the return flow path can also be concentric to each other, which not only maximizes the effective flow area for both output and return flow paths within the limited cross-sectional area of the opening of the fluid vessel, but also avoids liquid turbulence and / or formation of air bubbles caused by free-fall drip introduction of the re-circulated liquid that is commonly observed in conventional recirculating probe designs.

The invention discloses an experiment testing method and device to test stressed state of product when falling on the ground. It has a clamping device to hang the object, and a piezoelectricity sensing platform is set under it. A CCD camera is set outside the platform. Impact accelerometer is set on the testing point of the testing object. Using a monitoring program to start clamping device to drop the object in free falling state, recording the process until the object knocking at the piezoelectricity sensing platform trigger circuit, starting CCD camera to capture the process, calculating falling angle, taking simulation test, and comparing simulation G value and accelerometer testing G value, the accurate testing value would be gained. It would effectively improve economic benefit.

In a method and an apparatus for curtain coating of a moved substrate like a paper web substrate is moved below a liquid supply means providing a single or multilayer liquid coating in the form of a free-falling curtain impinging the substrate at a dynamic wetting line and a blade or air shield located upstream of the dynamic wetting line with respect to the moving direction of the substrate. The dynamic wetting line of the coating curtain on the substrate or web is oriented generally perpendicular to the moving direction of the substrate or web, providing substantially the same air pressure over an essential part of the coating curtain on its front and back side with respect to the moving direction of the substrate and providing a first supply air flow upstream to the wetting line. The supply air flows over a substantial length along the free-falling curtain and evacuates air from a location upstream of the supply air flow so that the air near the dynamic wetting line is moved against the moving direction of the substrate web and the boundary air layer entrained to the substrate. A second supply air is provided in proximity to the wetting line.

The invention relates to the technical field of mobile terminal structure protection, and discloses a protection processing method, system and device for mobile terminal falling. The method includes the steps that when a mobile terminal falls, an acceleration value collected by an acceleration sensor is read by a processor, whether falling is the motion of a free falling body is judged according to the acceleration value, and the acceleration sensor used for detecting the falling speed of the mobile terminal and a motor set used for adjusting the air posture of the mobile terminal in the falling process are pre-arranged inside the mobile terminal; when falling is the motion of the free falling body, the processor is started and controls the motor set to adjust the air posture so that the long side edges of the mobile terminal can touch the ground firstly in the falling process, and the included angle between the wide side edges and the ground is an acute angle. The acceleration sensor is adopted for collecting the acceleration of the mobile terminal in the falling process, the motor set is started to actively intervene the air posture in the falling process after it is detected and judged that falling meets the preset condition, in this way, the falling angle, relative to the ground, of the mobile terminal and the touch side edge, relative to the ground, of the mobile terminal are adjusted, ground touching impacts are reduced, and a screen of the mobile terminal is effectively protected.

According to aspects of the present invention, metal oxide powder, such as yttria and alumina powder (feed material), is processed using a plasma apparatus. The process generally consists of in-flight heating and melting of the feed material by the plasma apparatus. The plasma apparatus contains a plasma torch with required power supply and cooling systems, a powder feeder, a chamber to collect the powder and a dedusting system. The heated powder forms molten spherical droplets that are rapidly cooled under free fall conditions. The plasma densification process removes some impurity oxides, modifies the morphology of the particle and increases the apparent density of the powder.

The present invention relates to apparatus and method for re-circulating high viscosity liquids. The apparatus comprises a recirculating probe coupled to a fluid storage and dispensing vessel by a connector, and the recirculating probe comprises: (a) a dip tube defining an output flow path; (b) an output port; (c) a recirculating port; and (d) a return flow path. The output flow path and the return flow path preferably have substantially equal cross-sectional areas, which reduce or eliminate the unbalance between the discharge pressure in the output line and that in the re-circulation line, and prevent premature wearing-out of the dispensing / recirculating pump. The output flow path and the return flow path can also be concentric to each other, which not only maximizes the effective flow area for both output and return flow paths within the limited cross-sectional area of the opening of the fluid vessel, but also avoids liquid turbulence and / or formation of air bubbles caused by free-fall drip introduction of the re-circulated liquid that is commonly observed in conventional recirculating probe designs.

The present invention comprises a deepwater anchor that combines the high holding capacity of a plate anchor with the simple installation procedures associated with torpedo anchors. The complex embedding procedure typical for plate anchors is avoided. Instead, the anchor is installed by allowing it to free-fall through the water and then impact into the seabed. After penetrating the seabed, a pull on the anchor line causes the deployment of initially folded flukes. In their deployed positions, one or more flukes or plate-like structures extend perpendicularly toward the anchor shank, and function similar to conventional plate anchors. As a result of the fluke deployment, the holding capacity of the anchor against uplift loads is significantly greater than with a conventional torpedo anchor. Another aspect of the invention relates to the modular construction of a torpedo anchor, wherein the properties of an anchor can be adapted to the specific conditions determined at the deployment site. Still another aspect of the invention relates to fast, inexpensive procedures for installing a torpedo anchor in a desired operational environment.

The invention includes a display positioning assembly comprising a support, a display supported by the support, and a balance mechanism carried by the display and operatively connected to the support. The invention also includes an article for selectively exposing a display comprising a generally planar support surface having a first side and a second side opposite the first side. A balance mechanism operatively connected to a display may be positionable between a storage position proximate the first side of the generally planar support surface and an exposed position proximate the second side of the generally planar support surface. The invention also includes an assembly for arresting the free fall of an object. The assembly may comprise an outer slide in sliding or rolling engagement with an inner slide, and a brake comprising at least one pivot member may be coupled to the inner slide.

A frustum-shaped toilet bowl (26) includes a reversibly rotable saucer-shaped seal (46), or saucer. The saucer can automatically be rotated upward hermetically to compress closed against a sealing ring (48) that surrounds the outside of the bowl near its bottom outlet (32). The saucer is normally closed to prevent sewer gases from entering a bathroom from an adjoining drain line (36). The closed saucer can retain human waste or test balls in the bowl or, when opened, permits them to free-fall of their own weight into the drain line. The bowl has opposing water outlets (42) which are connected to flushometer valve (34), which is connected to a source of pressurized water. Depressing a button (74) automatically provides a wet spot in the bowl to prevent falling feces from sticking to the bowl. Depressing the button a second time opens the saucer and causes additional water to stagger flush solids while they are moving in the pipe. A two-stage staggered flush propels solids further than releasing the wet spot water and the additional water into the pipe together. A urine flush uses about 250 ml (0.25) gallons and a feces flush about 4.0 liters (1.0 gallon) of water. A 2.00 to 3.00-liter (0.50- to 0.75-gallon) flush carries 100 test balls about 18.2 meters (60 feet) in the drain line.

Disclosed are a method of manufacturing a light guiding panel by means of carving fine engravings on a surface of a transparent substrate by plasting fine particles and an apparatus for the same. A distributed degree of the engravings gradually increases as they become far away from a light source position. In a first method, fine particles are mixed with a high-speed air and then the air-mixed fine particles are diffusively blasted through one or more blasting nozzles so that the fine particles can collide with a surface of a transparent substrate slantly. In a second method, the air-mixed fine particles are diffusively blasted through a plurality of aligned blasting nozzles so that the fine particles can perpendicularly collide with the entire width of a transparent substrate, while appropriately adjusting intervals of the blasting nozzles and / or the amount of blasting as well as swing the blasting nozzles. In a third method, fine particles are mixed with an air generated by a high-speed rotating blower and then the air-mixed fine particles are blasted through a flat funnel-shaped blasting pipe having an outlet of which the width is not narrower than that of the transparent substrate to perpendicularly collide with a transparent substrate. The cross-sectional shape of the outlet of the blasting pipe can be varied by a user's control. The blasting amount of the fine particles is constantly maintained with respect to time by means of a free fall feeding manner of the fine particles. The light guiding panel which has been so manufactured does not need a diffusion sheet and has a good brightness uniformity and a good light effectiveness.

The invention discloses an absolute gravity measuring system and measuring method as well as a falling method of a free-falling body. The absolute gravity measuring system comprises a free-falling body device, a laser interference measuring device and a vibration isolation platform, wherein the free-falling body device is used for realizing free-falling motion of a falling object; the laser interference measuring device is used for measuring displacement generated during the free-falling motion of the falling object, and can realize accurate calibration of a measuring beam in a vertical direction by adopting a simplified structure; and the vibration isolation platform is arranged between the laser interference measuring device and the ground and is used for isolating influence of ground vibration on measurement. The absolute gravity measuring system has the beneficial effects that free-falling motion of the falling object is realized by adopting an elastic falling member suspension method, vibration influence of a motor drive system on the free-falling body device is reduced, and the accuracy of the gravity measuring result is improved; meanwhile, the zero crossing point (ZCP) feature of an interference fringe signal is computed by computer software so as to eliminate possible measurement deviation caused by a hardware circuit.

A dual function, inboard barrier / bridgeplate assembly for wheelchair lifts having a stowable platform, the barrier being pivotably secured to the inboard end of the lift platform, which barrier is actuated by a link to variously raise the barrier' to a safety position and lower it to a bridging position in accordance with the position of the platform. The dual function barrier / bridgeplate system is particularly useful in combination with a parallelogram type lift employing an articulated lever assembly having a sliding block for leveraging the platform from a horizontal transfer orientation to a vertical, or over-vertical stowage position. There is disclosed a barrier assembly in which a spring assist system comprising a gas spring acting on one member of the articulated lever assembly and a lever arm linking a second arm of the articulated lever assembly to the barrier co-operate to actuate the barrier from a raised position when the platform is away from the transfer level and a lowered position to act as a bridge plate at the transfer level. A telescoping push arm is included which actuates the barrier by means of a pivoted link which rotates the barrier in response to the telescoping motion of the push arm. A safety interlock and load detecting system may be employed to prevent the platform from moving to the stowed position when a load greater than a predetermined weight is on the platform. An anti-free fall mechanism is disclosed comprising a pin in the slide block which engages mating slots in the telescoping push arm members to lock their length during the initial stage of deploy of the platform downwardly from the vertical stowed position.

An inertial sensor provided with a detection structure sensitive to a first, a second and a third component of acceleration along respective directions of detection, and generating respective electrical quantities as a function of said components of acceleration. The detection structure supplies at output a resultant electrical quantity obtained as combination of said electrical quantities, and correlated to the value of a resultant acceleration acting on the inertial sensor, given by a vector sum of the components of acceleration. In particular, the detection structure is of a microelectromechanical type, and comprises a mobile portion made of semiconductor material forming with a fixed portion a first, a second and a third detection capacitor, and an electrical-interconnection portion, connecting the detection capacitors in parallel; the resultant electrical quantity being the capacitance obtained from said connection in parallel.

The invention relates to a preparation method of tungsten carbide-cobalt or tungsten carbide-cobalt-chromium thermal spraying powder. The preparation method includes: proportionally mixing tungsten carbide powder with cobalt powder or tungsten carbide powder, cobalt powder and chromium powder, compounding slurry, performing spray granulation, screening and degreasing granulated powder prior to rapidly sintering the granulated powder in a vertical high-temperature sintering furnace, enabling the powder to continuously and uniformly pass through a heating area and a cooling area in a free-falling motion mode, completing sintering in the heating area for 0.1-5s at the sintering temperature of 1000-1700 DEG C in the nitrogen protective atmosphere, and performing classified screening for the sintered powder as required finally. The preparation method solves the problems of long production cycle, low production efficiency, high energy consumption and the like when tungsten carbide based composite spherical thermal spraying powder is prepared by a traditional method, is simple in technological process, capable of achieving continuous production, energy-saving and environment-friendly and can be widely applied to the fields of aerospace, machine manufacturing, petrochemical engineering and the like, and the obtained powder is uniform in component, high in sphericity degree and good in fluidity.

The invention provides a drop hammer type shock test bench controlled by a magnetic switch, belongs to the technical field of civil engineering, and relates to a fiber concrete shock-resistance property test device. The device is characterized in that a shock rack is vertically welded to a bottom plate; a positioning cantilever is connected with the shock rack through a movable bolt, and the height is freely adjusted; the magnetic switch is connected with the positioning cantilever through a movable bolt, and the position is accurately adjusted. The free falling of the shock hammer is ensured, and the protecting device is clamped around four iron baffle plates on the bottom plate through square sleeves, thus the edge conditions of a test piece during shocking are same, and simultaneously the safety of the operators is ensured. The invention has the advantages of obvious enhancement of shock test accuracy, wide application, simple structure, easy operation, convenient carrying and enhancement of test safety.