1028results about How to "Avoid impact damage" patented technology

A air drag reduction apparatus includes left and right planar panels and top and bottom planar panels for mounting to the rear doors of a tractor trailer along the top, bottom and side edges thereof. Hinges are interposed between the panels and the doors so that the panels can pivot about the hinges between an extended drag-reducing position and a collapsed position generally adjacent the rear doors. Stop devices releasably secure the panels in the extended position, and biasing devices such as tensioning springs are operative to bias the panels outwards and rearwards to the extended position and are further operative to permit the panels to pivot between the extended position towards and to the collapsed position upon impact and contact from an external object occurring and then return to the extended position substantially immediately upon contact ceasing thereby significantly reducing the impact damage.

A gas cylinder transport cap is described. The cap has a bottom opening adapted for reversible attachment to a gas cylinder, where the attached cap surrounds a cylinder valve coupled to the gas cylinder. The cap also has a side surface which at least in part defines the perimeter of the bottom opening, where the side surface include a plurality of side openings; and a top surface formed on an opposite side of the cap from the bottom surface, where the top surface includes a top opening. The side openings and top opening improve transmissions of radio-frequency signals from a RFID device positioned inside the cylinder cap when the cap is attached to the gas cylinder. A method of tracking a gas cylinder transported between a first and second location is also described. The method may include the steps of coupling the gas cylinder to a RFID device, loading the gas cylinder on a transportation vehicle, and reading a gas cylinder identification signal transmitted by the RFID device with an RFID signal reader that translates the signal into gas cylinder identification data. The gas cylinder identification data may be associated with location data provided by a GPS device located in the transportation vehicle. The identification and location data may be communicated to gas cylinder tracking system that is remote from the transportation vehicle.

A pallet jack with a pallet engaging fork having separate and independently movable first and second fork arms connected to independently controlled and operable first and second fork arm elevating means, for lifting a pallet loaded with a stack of items so that when the stack of items leans and is out of balance one fork arm can be elevated higher than the other to compensate and restore balance to the stack of items.

A rear vision video camera and display screen system for a motor vehicle (10) has externally mounted left and right side view video cameras (24, 26) for viewing regions to the side of the vehicle, and a rear view video camera (22) mounted at the rear of the vehicle for viewing a region behind the vehicle. The system also includes a monitor display screen (12) located on a dashboard of the vehicle for viewing by a driver of the vehicle. The display screen (12) receives and displays views of each of the regions taken by the video cameras. The rear view video camera (22) is controlled by a swivel mechanism which moves the camera to a first position when the driver shifts into reverse gear. The first position allows the camera (22) to observe the region immediately behind the vehicle. The swivel mechanism also moves the camera (22) to a second position when the driver engages a gear for forward motion, whereby a wider field of view is observable at the rear of the vehicle.

A back support and compression vest includes a garment made of a compression-like material with a fabric panel arranged about the abdomen designed to receive an adjustable back support belt. The fabric panel includes a right and left fabric panel cooperating to form a slot opening about the lower middle back and spaced generally about the middle front abdomen of wearer. The fabric panel is sufficiently wide to allow the belt to be properly positioned. The garment includes a pair of shoulder pad holders for receiving removable shoulder pads. The shoulder pads are sufficiently shaped to cover the wearer's shoulder while also extending rearward across a portion of the wearer's back and forward across a portion of the wearer's chest. The shoulder pad holders include a fabric envelope having an opening arranged generally on the inside portion of the garment along the arm aperture.

A projectile launched from a conventional weapon; upon impact with a human target the projectile attaches to the target and stuns and disables the target by applying a pulsed electrical charge. The electric round is defined as non lethal ammunition directed to incapacitate a human, to prevent him from moving for a short time, to prevent him from committing a crime and to allow authorized personnel to arrest the target. A novel thin film technology transformer and thin film technology battery produce an electrical shock capable of stunning a human being in a device the size of a conventional bullet. The transformer and battery are smaller and lighter than conventional transformers and batteries with similar power output.

An underground gross coal gangue removal and mine water treatment combined process is characterized in that the process comprises two parts: gangue removal operation from lump coal and mine water solid-liquid separation operation, wherein, the gangue removal operation from lump coal comprises screening, crushing and separation steps, and the mine water solid-liquid separation operation comprises hydraulic classification, concentration and pressure filtration steps; by the gangue removal operation from lump coal, chunks of gangues in the gross coal are removed, and simultaneously the large particles thereof are crushed into appropriate size; by the mine water solid-liquid separation operation, the solid substances in the mine water are recycled to a coal streamline, and simultaneously the clear overflow water is delivered to a underground water sump; the coal muddy water generated by the gangue removal operation from lump coal is delivered to a mine water solid-liquid separation system for treatment and the mine water solid-liquid separation system provides water for washing and selection for the gangue removal operation from lump coal, so the coal muddy water and the water for washing and selection are combined into an organic whole.

A mold for forming a snowman includes lower, intermediate and upper generally spherical, hollow members comprised of clear plastic. Each plastic member includes an upper aperture for filling the member with snow. The lower member includes a generally flat base portion for positioning stability and an upper connection ring adapted for secure coupling to a lower connection ring on the intermediate member. The intermediate member also includes an upper connection ring adapted for secure coupling to a lower connection ring on the upper member. The three connected members form a hollow, vertical structure which when filled with snow provides a snowman of classic shape, symmetry and proportions. The individual spherical hollow members are easily connected and disconnected, with the intermediate and upper members having apertures for receiving eye, nose, mouth and arm indicia, with the upper member further including a hat mounting arrangement in one embodiment.

A mountable signage enclosure for encasing a graphic media comprising a frame being generally elliptic or having a substantially aerodynamic edge, an encasement for protectively displaying the graphic media through a clear covering through a front side of the mountable signage enclosure and allowing the exchange of the graphic media, a plurality of light emitting diodes perimetrically positioned to illuminate the encasement and the graphic media inserted therein, a power source for providing power to the light emitting diodes, a plurality of suction cups fixed to a back side of the mountable signage enclosure enabling the fixing of the mountable signage enclosure on a smooth surface; and optionally comprising a photovoltaic charging means providing an electric current for charging the power source. The mountable signage enclosure provides a stand-alone illuminated sign that can be easily installed in a variety of configurations, while allowing the quick exchange of the signage.

The invention discloses a device for opening and closing a back door of a rubbish bin, which belongs to the technical field of rubbish storage and transportation devices. The device for opening and closing the back door of the rubbish bin comprises a carriage, wherein the back end of the carriage is provided with a back door frame; the back door is arranged in and matched with the back door frame; the matching face with the back door on the back door frame is provided with a gasket; the upper part of the back door is rotatably connected with the carriage through a connecting hinge pin; both sides of the upper part of the back door is provided with a straight groove backwards and downwards; the connecting hinge pin is inserted into the straight groove; both sides of the carriage are hinged with a two-way hydraulic oil cylinder respectively; the extension end of a piston rod of the two-way hydraulic oil cylinder is hinged with the end part of a long arm of an L-shaped locking arm; a short arm of the locking arm is inserted between a closing limited hinge pin and an opening limited hinge pin arranged on the back door; and the middle part of the locking arm is hinged with the back door frame. The two-way hydraulic oil cylinder can drive the locking arm to rotate to open or close the back door; and the back door has flexible opening and closing, capability of remote control, reliable use and good sealing performance without leakage in the process of transportation, and can be used for treating urban rubbish.

The invention discloses a storage-battery anti-shock crashproof structure, aims at solving the disadvantages that when a conventional storage battery is installed and used, a battery group is easily extruded and injured because of shaking of a battery pack, and thus the battery pack is injured and has faults. The structure comprises a storage batter housing, the storage battery housing is inside provided with separation plates dividing the storage battery housing into multiple cell unit installation grooves; each cell unit installation groove is inside provided with a battery group unit; the bottom surface outside the storage battery housing is provided with transverse ribs and longitudinal ribs, and is coated with a vibration-damping pad which covers the transverse ribs and the longitudinal ribs; and the outer lateral walls at periphery of the storage battery housing are all provided with vertically-arranged sidewall ribs, and are all coated with crashproof pads which cover the sidewall ribs.

A band-powered speargun has a release mechanism incorporating a line-drop feature for releasing a coiled line attached to a spear. An approach to attaching the line to the spear involves a linking ring having a size selected so that the ring passes over a protective cone near the spear tip and is captured by an element protruding outward from the spear shaft. The protective cone also shields hinged barbs from impact damage. The gun may also incorporate a muzzle kill spike and a separate hand-held kill spike that is normally stored in a specially designed cavity in the speargun grip.

The invention provides an observation device for a water gauge of a ship. The observation device comprises a transparent pipe, wherein a curve-shaped wave resistant pipe is connected to the tail part of the transparent pipe, and the diameter of the curve-shaped wave resistant pipe is smaller than that of the transparent pipe; an electromagnet, a camcorder lens and magnifying glass are sequentially arranged at the upper part of the transparent pipe from top to bottom, the electromagnet is electrified through a power supply device on the ship, and the camcorder lens is connected with an image display system on the ship. Through the adoption of the observation device disclosed by the invention, a measurer does not need to go down to the water surface, so that the draught depth of the ship can also be observed, interference of waves on the water surface is avoided, the safety of observing the draught situation of the ship is greatly improved, and besides the accuracy of reading the water gauge is improved.

The invention provides offshore hydroelectric power generation equipment. By the aid of the offshore hydroelectric power generation equipment, technical problems in the aspect of converting wave energy and tidal current energy into electric energy by the aid of the same equipment can be solved, and the power generation efficiency can be improved. The offshore hydroelectric power generation equipment comprises a platform mechanism, wave energy power generation systems and a tidal current energy power generation system. The wave energy power generation systems are mounted on two sides of the platform mechanism, and the tidal current energy power generation system is rotatably mounted at the bottom of the platform mechanism; the platform mechanism comprises a platform frame, an air chamber and mooring anchors, the wave energy power generation systems comprise power generation mechanisms and energy storage mechanisms, the tidal current energy power generation system comprises a tidal current energy capturing mechanism, a tidal current energy power generation mechanism and a tidal current energy power generation case, the tidal current energy capturing mechanism comprises a water turbine and a flow guide cover, the water turbine is mounted in the flow guide cover, a guide pipe is fixedly arranged on the upper portion of the flow guide cover, and the upper end of the guide pipe is connected with a turntable. The offshore hydroelectric power generation equipment has the advantages that energy in a wave energy form and a tidal current energy form can be sufficiently utilized by the aid of the offshore hydroelectric power generation equipment, and the power generation efficiency can be improved.

The invention relates to a cam shaft of an engine and an air valve driving device. The cam shaft is structured such that an air inlet or exhaust rocker arm is provided with first cam and second cam adjacent to each other. A flange is arranged between the two cams. A lift part is arranged on each of the two cams. The flange is not arranged in parts, as base circles, of the two cams. A rocker arm roller can be driven by an actuator driven by compressed air to slide on a roller shaft to switch contact between the two cams. An ECU determines an electrifying moment of an electromagnetic valve according to a signal of cam shaft position sensor to control on-off of a compressed air pipeline connected to the actuator. When the rocker arm roller is switched to the other cam, as a result of blockageby the flange, only when the cam shaft rotates to the part, as the basic circle, of the two cams, the cams can be switched, so that the reliability is ensured. A plurality of actuators can be controlled by one electromagnetic valve. The cam shaft is low in cost. The two cams can be used for achieving functions needed by the engine, for example, variable air valve or engine brake.

The invention provides a rainfall analog device used for a centrifugal model. The rainfall analog device comprises a rainfall plate in which 0.5 mm small holes are uniformly formed is arranged above the centrifugal model; the distance between the rainfall board and the top surface of the centrifugal model is smaller than 10 mm; one or more mounting beams are arranged on the rainfall plate; a plurality of rectangular spray nozzles (7) are arranged on the mounting beams; a one-to-many adapter is connected onto a water supply joint, and is connected with the rectangular spray nozzles through hoses; the rectangular spray nozzles are direct-injection pressure type atomizing nozzles. The invention further provides a rainfall analog method adopting the rainfall analog device. The rainfall analog method and the device thereof ensure the rainfall uniformity in a rainfall area of the centrifugal model, and can realize accurate analog of various rainfall.

The invention discloses a multifunctional critical-current uniformity non-destructive and continuous detection device of a superconducting band material. The multifunctional critical-current uniformity non-destructive and continuous detection device is characterized in that a pay-off disc and a take-up disc are respectively arranged above the left upper part and the right upper part of an opened Dewar bottle which contains liquid nitrogen; the pay-off disc, the take-up disc and the Dewar bottle are respectively arranged in a sealing box; the Dewer bottle is internally provided with a guide wheel I, a guide wheel II, an excitation device, a magnetic-field measuring instrument and a guide wheel III in sequence from left to right; a height-adjustable top guide wheel is also arranged between the guide wheel I and the guide wheel II; an encoder is arranged above the left side of the guide wheel I or the right side of the guide wheel III of the Dewar bottle; and the excitation device, the magnetic-field measuring instrument, the encoder, a laser range finder I and a laser range finder II are respectively and electrically connected with a monitoring and controlling system. The multifunctional critical-current uniformity non-destructive and continuous detection device disclosed by the invention has the advantages that on the basis of testing the critical-current uniformity of the superconducting band material in a non-contact and continuous manner, the length of the band material also can be measured, the destructed position is accurately positioned, the change of the characteristic of the critical current of the band material can be tested when the tension and the bending degree are variable, and the destruction to the superconducting band material is less in testing.

The invention provides an undisturbed stable switching method for an industrial enterprise factory electrical system. The switching among a main feeder line, a standby feeder line and a bus coupler of a factory electrical system is controlled by an undisturbed stable control device comprising a CPU module, and a load is switched to a standby line. The method comprises the following steps of recognizing a running mode, starting a start mode, selecting a switching mode and judging according to the switching action process and a realizing way. The invention can prevent running voltage interruption or equipment impact damage caused during power supply switching, simplify the power supply switching operation and reduce misoperation, thereby ensuring the power-on continuous running of electrical equipment.

A system and method for stock-out detection in a retail environment. The method includes sending, from a reference ultrasound emitter, a reference ultrasound pulse that is at least partially reflected by a retail shelf so as to form a return pulse. The return pulse is received at a reference ultrasound receiver. A reference round-trip-delay (RTD) corresponding to a time period between the sending of the reference pulse and the receiving of the return pulse is determined. A monitoring ultrasound pulse is sent toward the retail shelf and a reflection of the monitoring ultrasound pulse is received. A stock-out condition is determined based upon a comparison of the reference RTD and a monitored RTD associated with the monitoring ultrasound pulse.

The invention provides a robot time optimal trajectory planning method, and belongs to the technical field of robot control. The trajectory planning method solves the problem that in the prior art, atrack planning method is poor in practical applicability. The robot time optimal trajectory planning method comprises the steps of obtaining and discretizing a task path and obtaining coordinates of discrete points, and further comprises the steps of A, obtaining kinematics parameters; B, determining variables and constraint conditions, and establishing a constraint inequality; C, calculating to obtain an optimal variable constraint maximum value and an actually allowable optimal solution; D, acquiring information of each discrete point, and generating a discrete point interpolation array; andE, regenerating a discrete point sequence about time, and calculating and outputting joint information about time, so that the adaptability of method application is improved, the calculation difficulty is reduced, and the working efficiency is improved.

The invention discloses a novel automatic box opening machine which comprises a box plate conveying mechanism, a box taking, folding and feeding mechanism, a sealed box clamping belt, an adhesive tape box-sealing mechanism and an electrical control mechanism; the box taking, folding and feeding mechanism comprises a box plate taking mechanism, a box plate opening mechanism and a large sheet folding mechanism; the box plate conveying mechanism comprises a bottom supporting frame, a lifting mechanism fixedly arranged above the bottom supporting frame, a lifting framework fixedly mounted above the lifting mechanism, a chain conveying mechanism arranged on the lifting framework, an adjustable box plate protecting mechanism arranged above the lifting framework, and an automatic box feeding and pushing mechanism arranged above the lifting framework; and the box plate opening mechanism comprises a box plate opening mechanism mounting plate, a small sheet folding structure, a box opening and pushing mechanism and a regulating lead screw. According to the novel automatic box opening machine disclosed by the invention, each independent structure is controlled, the mechanisms are clear, and control and follow-up maintenance are convenient, so that the integral structure realizes automatic box opening, is high in working efficiency and is suitable for opening box plates of different sizes.

Piezoelectric devices are disclosed that include a chip plate sandwiched between a lid plate and a base plate. The chip plate includes a tuning-fork type piezoelectric vibrating piece surrounded by an outer frame. The lid plate includes a concavity on its inner major surface, and the base plate includes a concavity on its inner major surface. The lid plate, chip plate, and base plate are bonded together to form a package containing the piezoelectric vibrating piece. The tuning-fork type piezoelectric vibrating piece includes a base having an X-direction width and at least pair of vibrating arms extending from the base in a Y-direction. The tuning-fork type piezoelectric vibrating piece is coupled to the outer frame by supporting arms extending in the Y-direction outboard of the vibrating arms. The concavity of the lid plate includes at least one base-movement “buffer” extending in the X-direction at a location corresponding to the base of the vibrating piece. The concavity of the base plate includes at least one base-movement buffer extending in the X-direction at a location corresponding to the base.

The invention provides a turnover device for hiding a vehicle display screen. The turnover device for hiding the vehicle display screen comprises a frame body, a pair of sliding rails mounted above the two sides of the frame body, a pair of sliding blocks arranged on the sliding rails, a turnover mechanism mounted on the two sliding blocks, a moving mechanism arranged on the left side of the framebody and connected with the sliding blocks and a display screen backing plate mounted on the turnover mechanism. The turnover mechanism comprises a motor seat, a moving connecting seat, a pair of bearing seats arranged on the motor seat and the moving connecting seat and a turnover motor mounted on the motor seat, turnover shafts are arranged on the two sides of the rear of the display screen backing plate, the display screen backing plate is arranged between the pair of bearing seats in a bearing mode through the turnover shafts, and the turnover shaft on the right side is connected with theturnover motor. The moving mechanism comprises a pair of threaded rod bearing seats arranged on one side of the frame body, a threaded rod arranged between the two threaded rod bearing seats, a nut moving sliding block in screw joint with the threaded rod, a fixed seat separately connected with the nut moving sliding block and the moving connecting seat and a moving motor driving the threaded rodto rotate. The hidden performance is improved, the space occupancy rate is low, and the display screen is prevented from being impacted and damaged.