359 results about "Lateral stability" patented technology

A single fold system for tissue approximation and fixation is described herein. The devices are advanced in a minimally invasive manner within a patient's body to create at least one fold within a hollow body organ. The system comprises a tissue acquisition and folding device and a tissue stapling or fixation device, each of which is used together as a system. The acquisition device is used to approximate a single fold of tissue from within the hollow body organ and the stapling device is advanced through a main lumen defined through the acquisition device and is used to affix the tissue. The stapling device is keyed to maintain its rotational orientation relative to the acquisition device and to provide the user positional information of the stapling device. The acquisition device is also configured to provide lateral stability to the stapling device prior to the stapling device being clamped onto tissue.

A system for tissue approximation and fixation is described herein. The devices are advanced in a minimally invasive manner within a patient's body to create one or several divisions or plications within a hollow body organ. The system comprises a tissue acquisition and folding device and a tissue stapling or fixation device, each of which is used together as a system. The acquisition device is used to approximate tissue regions from within the hollow body organ and the stapling device is advanced through a main lumen defined through the acquisition device and is used to affix the approximated tissue. The stapling device is keyed to maintain its rotational orientation relative to the acquisition device as well as to provide the user positional information of the stapling device. The acquisition device is also configured to provide lateral stability to the stapling device prior to the stapling device being clamped onto tissue.

A cleated shoe is presented which provides cushion support and lateral stability in a lightweight construction. The shoe includes a lower and an upper. The lower may include a primary midsole, cushion elements, and an outsole. A cleat may be connected to the outsole. At least one cushion may be located between the primary midsole and outsole. Various embodiments of cushions are presented and may be consistent with specific types of shoes associated with various types of activities such as football, baseball, lacrosse, soccer, or golf. The lower may be consistent with approaches to remediate a wearer's pronation or supination.

An ergonomic workstation with a reduced or minimal footprint comprises a modified treadmill component and a workstation component. In one embodiment, a substantial portion of the workstation's support structure fits under the treadmill component so that the overall footprint of the treadmill workstation is minimized. Additional lateral stability of the workstation component is ensured by its proximal location under the heavy treadmill component. A vertical support extends from the base of the workstation component and supports a vertically oriented desk and monitor. In another embodiment, a single vertical workstation support enables adjustability at more than one point. Because both the screen and the desk are connected to the single vertical support, a user may quickly adjust both the desk surface and the viewing monitor to appropriate, individually tailored heights with minimum effort. Once these adjustments are accomplished, the user may simultaneously type on a keyboard at a customized desk height, view a screen at customized eye level, and walk on the treadmill and reduce stress to the user's body.

The invention relates to a horizontal and vertical coordination control method for trajectory tracking of an intelligent vehicle. For association and coupling characteristics of horizontal and vertical dynamics of the intelligent vehicle, a horizontal and vertical coordination controller for trajectory tracking of the intelligent vehicle is designed. By applying a model prediction control and sliding mode control algorithm, the opening degree of a throttle valve of an engine, the pressure of a main braking cylinder and the deflection angle of a front wheel are cooperatively controlled. In thedesign of a horizontal MPC, the state amount of the vehicle is selected at the formula which is shown in the description, and the state amount (vertical speed vx) is real-time changable vehicle speedoutput by the vehicle after vertical control; vy is a horizontal speed at the mass center of the vehicle; the formulas which are shown in the description are the heading angle and heading angle speedat the mass center of the vehicle; Y and X are a horizontal position and a vertical position under world coordinates. According to a horizontal and vertical coordination control system, the intelligent vehicle efficiently and stably tracks an expectation trajectory at the expected speed. Large-steering operation can be remarkably improved, and the horizontal stability of the intelligent vehicle inthe trajectory tracking process is improved.

An interlocking system of frames for floor or wall tiles. The frame has a base frame with a lid surrounding its perimeter. The lid serves to fill the gap between frames after the tiles are installed, as well as provide lateral stability to the tiles. The bottom of the base frame has an array or grid of support legs. On at least one side of the perimeter, the base frame has a plurality of bosses or slotted connectors extending outwardly from the base frame, which can be used to make connection with the support legs of another base frame. A filler, or divider, frame of a given shape, e.g. “+” or “#”, is used to guide the placement of the tiles onto the base frame, as well as fill the gap between the tiles. Notches are formed on the base frame to securely engage the filler frame. One set of notches are formed through the surface of the base frame's planar body, while the other set of notches are formed on the inside surface of the lid of the base frame.

The invention relates to a method for improving lateral stability under the condition of turning/braking vehicles, in particular to an automobile brake control method for improving lateral stability of turning/braking vehicles. By an off-line simulation method, from the angle of whole-vehicle dynamics, based on optimization technology, the invention calibrates an optimal target slip-rate working interval of an automobile ABS system comprehensively considering both longitudinal braking performance and lateral braking performance under the turning/braking condition, forms a curved surface from target slip rate to steering angle to initial braking speed, and then supplies the target slip rate for dynamically adjusting wheels inside and outside a bend to an online ABS system. The online ABS system adjusts the pressure of a braking wheel cylinder to reasonably allocate longitudinal force and lateral force that every wheel bears when a vehicle turns/brakes so as to improve the lateral stability of the vehicle. On the basis of the prior ABS system, the method has the advantage of allowing the ABS system to have part of the functions of an ESP system without increasing any cost.

The invention discloses an oppositely-rotating shaft-less rim-driven propeller which is provided with a guide tube component, wherein a stator winding, a front rotor component and a rear rotor component are arranged in the inner cavity of a shell; rotor rings in the two rotor components form a conical matching pair in an axial direction, and the polarities of permanent magnets embedded into the outer walls of the two rotor rings are opposite; and after the stator winding is electrified, the stator winding and the permanent magnets simultaneously form magnetic fields with opposite magnetic properties, namely that one stator drives two rotors to rotate to form a dual-rotor annular motor, thereby driving a front paddle and a rear paddle to rotate oppositely so as to generate thrust for pushing a ship to move forwards. The propeller disclosed by the invention has the advantages of small occupied space, high propulsion efficiency, large thrust, good transverse stability, small vibration and the like, and is particularly suitable for propelling of military boats and ships and modern civil ships as well as positioning of offshore platforms.

An ankle brace for comfortably supporting an ankle of a wearer by inhibiting motion between a foot and lower leg of the wearer. The ankle brace employs a laminated, moisture-wicking material for leg and foot portions that improves wearability during athletic activities. The leg and foot portions are combined with medial and lateral stays that are supported within pockets of the leg portion so as to provide medial and lateral stability for the ankle. A strapping unit is used to further improve stability with a pair of straps that are formed of the same piece of laminate material as the foot portion and extend upwards from the foot portion to cross over the ankle and attach to the leg portion. Advantageously, constructing the straps from the same piece of material as the foot portion eliminates fasteners and overlapping material and allows the ankle brace to be used with off-the-shelf footwear.

A portable awning producing shade adjacent to ball field fences and dugouts and similar situations comprised of a retractable awning wound around a roller tube, a housing for the awning and roller tube, telescoping legs, guy lines for lateral stability and a handle attached to the housing. The free end of the awning protrudes through an elongated slot in the housing and is attached by snap hooks to a fence. The other end of the awning is attached to the roller tube which is mounted inside of the housing. The housing is vertically supported by the telescoping legs and stabilized by the guy lines attached to the ground. The telescoping legs are attached to the housing by hinges so that the legs may fold adjacent to the housing for stowing. The housing has a handle and restraining straps attached to it for portability and includes storage areas at the ends of the housing provided for the guy lines and stakes. The restraining straps hold the legs parallel to the housing while stowed.

A shoe (80) has a fluid-filled bladder (10). The airbag includes a recess (14a, 14b) and a cooperating insert (12) on the top and bottom surfaces. The concavities facing inward surround and connect with each other and have an oval shape. The dimple structure provides a lateral stabilizing force and an increased shear compliance by providing an increased contact area at the connection point. The contact area preferably corresponds to the shape of the recess. Each recess receives a correspondingly shaped insert. Inserts are designed to collapse with compressive loads and then return to shape. The shape of each insert and recess facilitates crushing. The two ends of the oval have different stiffnesses so that one end collapses before the other in response to small compressive loads.

The invention discloses a gyroscopic-effect-based transverse self-balancing device and method. A left set of flywheel rotation unit and a right set of flywheel rotation unit which are distributed in a manner of being axially symmetric about the center of a bottom plate are fixedly arranged at the upper part of the bottom plate, wherein each set of flywheel rotation unit comprises a flywheel, a flywheel bracket, a steering engine and a steering wheel; each flywheel comprises a metal hollow cylinder with a central axis vertical to the bottom plate and a brushless motor which is coaxially sheathed in the metal hollow cylinder; when the bottom plate is transversely inclined from front to back under the action of an outer moment, the brushless motors on the left side and the right side are equal in rotation speed and rotate in reverse rotation directions; the two steering engines rotate along reverse rotation directions at the same angular speed, so that the left flywheel and the right flywheel respectively apply two gyroscopic moments reverse to the direction of the outer moment to the flywheel brackets. Through the gyroscopic-effect-based transverse self-balancing device and method, the transverse action force is supplied by the gyroscopic effect; the transverse stability of the device is improved; the influence of the transverse disturbance on the device is reduced; the balance in the transverse direction is achieved.

A method and system for reducing the effects of vibration and shock during transfer of an item on a pallet is provided. The system includes sleeves having recesses therein. The recesses are used to house dampening members, which reduce the vertical movement of the item on the pallet during transport of the item. Blocks may be positioned on the sleeves and may include apertures therethrough to house feet of the item being shipped to aid in providing lateral stability for the item during transfer. In addition, a transition member may be positioned between the feet of the item and the dampening member to increase the surface area on the dampening member to further aid in stabilizing the vertical movement of the item during transport.

Disclosed is a method of comparing the relative lateral stability among drill bits (that is, the tendency for a bit to whirl). This allows improved bit selection in applications where whirl is apparent. Because there will likely be many different acceptable bit designs produced by the above method, the comparison of the regenerative forces among these bits allows a customer to make a more informed choice between stability and other performance features among a range of bit designs.

This invention proposes a new, improved method and apparatus for applying web segments to a traveling web. Ears, or wings, are placed on a running web of disposable diapers. Because these webs are often asymmetrical or otherwise incompatible with the principle of slipping over the surface of a moving vacuum roll, the webs may float from side to side or otherwise be drawn out of square by asymmetrical forces. A vacuum groove is provided on a vacuum roll to counter these effects. Alternatively, a ridge with vacuum about the ridge is provided, also to pull a machine direction line of material into the groove or over the ridge, thereby giving the web some degree of cross-directional stability.

The invention discloses a simulation method for detecting the side direction stability of a directly paved submarine pipeline and a simulation device; the invention firstly prepares a soil sample to simulate a seabed, mounts a test pipeline, releases the pipeline to lead the pipeline to generate initial sedimentation under the action of self-gravity when the pipeline is just contacted with the seabed and simultaneously adopts a laser displacement sensor to measure the initial sedimentation amount of the pipeline in a soil body, applies an incline pull to the pipeline through a stepping motor to simulate the actions of a horizontal daggling force and a vertical lifting force of a sea flow to the pipeline, and simultaneously measures the pull of the stepping motor, a horizontal displacement and an additive sedimentation amount during the side direction destabilization process of the pipeline, a displacement field of the soil body at the lower side during the side direction destabilization process of the pipeline, and a soil pressure of the side direction. The utilization of the simulation method and the simulation device of the invention can effectively simulate a bearing soil body, the horizontal dragging force and the vertical lifting force of the single-direction sea flow to the pipeline, etc., of the directly paved submarine pipeline and can monitor the stability parameters like the limit side direction soil resistance of a pipeline foundation in real time, thus being capable of simulating the side stability of the directly paved submarine pipeline.

An article of footwear including a shell that provides stability. The shell can include a heel cup and a wall extending forward of the heel cup and around the periphery of the forefoot, returning to the heel cup. The shell can also define a hole in the forefoot region. A cushion in the form of a midsole can be secured in the shell, with a portion extending at least partially through the shell hole. An upper can be secured to the shell with stitching passing through the upper and the shell wall in at least the forefoot region; and rearward of the stitching, the upper can be secured with cement and/or adhesives to the shell and/or the midsole. The footwear provides comfort and stability, for example toe-to-heel and lateral stability, especially during toe-off, i.e., the propulsion portion of a gait.