542results about How to "Improve lateral stability" patented technology

A mask system includes a cushion adapted to seal with a face of a patient. In one form an unobtrusive full-face masks system is provided which is comfortable and has a wide fit range. The cushion may include a sealing structure (127-10) and a supporting structure (127-20). The supporting structure may include gaps or spacing in a nasal bridge region (NBR) and / or a lip region CHN.

A drawer slide system providing access and stability for side access drawers has a base including an outside pair of vertical webs and a centrally situated elevated portion. Vertically oriented drawer slides are coupled to each of the vertical webs and a horizontally oriented drawer slide is coupled to the centrally situated portion of the base. The vertically oriented drawer slides are coupled to outside margins of a side access drawer adjacent to a bottom of the drawer. The horizontally oriented drawer slide is coupled to a central portion of the bottom of the drawer. The base can be fixed to a bottom surface of a cabinet to position the side access drawer within a suitable drawer receiving opening in the cabinet.

An article of footwear includes a sole assembly and an upper secured to the sole assembly. A sole plate is positioned between the upper and the sole assembly. The sole plate includes a midfoot member comprising a medial member having a base plate and at least one medial pillar extending upwardly from a medial edge of the base plate; with the base plate having a substantially planar finger extending forwardly and configured to extend under a foot of a user; and a lateral member having at least one lateral pillar extending upwardly from a lateral edge thereof. A forefoot member has at least one finger extending upwardly along an exterior surface of the upper.

A spacer and sealant assembly comprising a stretchable sealant support member having a planar surface bounded by first and second edges wherein said first and second edges have at least one pleated portion, a plastic shim having at least one undulating portion in contact with said first and second edges of said stretchable sealant support member so that said at least one pleated portion is oriented concavedly inward into said at least one undulating portion of said shim, a sealant joined to at least said first and second edges of said sealant support member.

An air displacement pipette having axially spaced annular sealing and frusto-conical lateral support zones and regions on the pipette's mounting shaft and tip, respectively, in combination with structure for insuring uniform depth of mounting shaft penetration into the pipette tip to maintain uniform tip interference with the mounting shaft as successive tips are mounted on and ejected from the mounting shaft whereby the pipette tip is easily and firmly mountable on and ejectable from the pipette tip mounting shaft by the application of reduced user generated axial forces.

The invention relates to a trajectory tracking control method and a control device for a driverless vehicle. The control method comprises that error of present driving trajectory and a reference trajectory of a vehicle is calculated by a data preprocessor, a target performance indicator function which is corresponding to the present driving model is obtained simultaneously; an upper layer controller predicts driving states of the vehicle over a period of time through a vehicle dynamics model; transition switch is conducted to function parameters according to switching control algorithm, and a performance indicator function at present sampling time is obtained; optimal controlled quantity of present time is calculated by considering performance requirement constraint conditions at the same time according to predicted driving states and the performance indicator function; a lower layer controller calculates throttle opening, braking pedal pressure and steering wheel turning angle according to the optimal controlled quantity; and the control device comprises the data preprocessor, the upper layer controller and the lower layer controller. Compared with the prior art, the trajectory tracking control method and the control device for the driverless vehicle have the advantages of being good in control effect, high in practicability, capable of improving stability and safety of vehicles and the like.

A remotely operated vehicle or robot for picking up storage bins from a storage system includes a vehicle body, which includes a first section for storing vehicle driving means and a second section for receiving any storage bin stored in a storage column within the storage system, a vehicle lifting device in order to lift the storage bin into the second section, a first and a second set of vehicle rolling means allowing movement of the vehicle along a first and a second direction perpendicular to the first direction, respectively, within the storage system. The second section includes a cavity arranged centrally within the vehicle body. This cavity has at least one bin receiving opening facing towards the underlying storage columns At least one of the two sets of vehicle rolling means is arranged fully within the vehicle body.

A single, self-contained housing core configured for containerization is provided. The housing core includes a first section having a floor and a first portion of walls. A second section is connected with the first section to define at least one cavity. The second section includes a ceiling and a second portion of the walls. The second section also includes a reservoir. Deployment items are disposed with the first and second sections. Implants are disposed within the first and second sections. Loose items are disposed with the first and second sections. Methods and systems of constructing a dwelling unit including the housing core and transporting the housing core via intermodal transport are also disclosed.

A system for treating obstructive sleep apnea includes a body implantable in a soft palate, and a fastening element at a proximal end of the body for connecting the body with a hard palate. In one embodiment, the body is curved and has a convex top surface and a concave bottom surface. The curved body is adapted to support and / or change the shape of the soft palate for minimizing the likelihood of airway obstructions during sleep. The fastening element, secureable to the hard palate, includes at least one barb adapted to engage the hard palate for anchoring the body to the hard palate. In one embodiment, the body has a surface adapted to promote tissue in-growth. The implant body may be made of materials including nitinol, stainless steel, biocompatible polymers, temperature-sensitive materials, and shape memory materials.

The invention discloses a turnout zone and non-turnout zone transition section structure for a medium and low speed magnetic levitation low implantation line. The transition section structure comprises non-turnout zone reinforced concrete rafts, turnout zone reinforced concrete rafts, reinforced concrete turnout beam strip foundation, composite foundation of a plurality of rigid piles, a plurality of reinforced concrete cast-in-situ bored piles, a non-turnout zone bearing-trail beam, boss stoppers, a non-turnout zone bearing-trail beam overlapping platform, a non-turnout zone bearing-trail beam lower trapezoidal fill body, a low implantation line bearing-trail beam lower foundation and a non-turnout zone bearing-trail beam outside subgrade filling. According to the transition section structure disclosed by the invention, the condition that extremely large deformation of the turnout beam is caused in the rotating process due to insufficient stiffness of the foundation can be avoided, and the requirements of the turnout beam on the basement strength and stability of the foundation are met.

An improved truck racing tire includes three belts and reduced tread and undertread thickness for weight reduction. An asymmetric shoulder design is provided and circumferential grooves having wear indicia therein at a preselected depth are incorporated into the tread to divide the tread into plural ribs. Notches are formed within the tread ribs in circumferential patterns of distribution at a depth equivalent to the depth of groove tread wear indicators. The tread is constructed of a relatively softer compound in the cap and a relatively harder compound in the base. The boundary between the cap and the base is at a depth corresponding to the notch depth and the wear indicators within the grooves to provide a further indication and confirmation of wear pattern and magnitude.

The invention discloses a method for controlling the traction of an electric vehicle. A motor is driven by one controller; and the controller is internally provided with a finished vehicle status gain calculator, a vector controller, an error observer and an optimal slip ratio tracker. When a system operates, the finished vehicle status gain calculator analyzes the intention of a driver according to initialized vehicle information and real-time read finished vehicle status information and determines a torque gain curve, a vehicle acceleration curve and a vehicle desired speed; then the vector controller controls the motor to be up to a preset torque; next, the error observer compares the error between an actual value and a calculated value of the speed and adjusts a road condition resistance coefficient; and the optimal slip ratio tracker calculates the real-time slip ratio of the vehicle and adjusts a slip coefficient in a torque equation according to the calculated value so that the vehicle keeps in an optimal slip ratio state. By using the method, the phenomenon of slip is effectively prevented, and the acceleration performance and the side stability of the electric vehicle are improved.

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.

A stackable wall panel assembly including a lower wall panel having a top, a bottom, vertically extending ends and opposite sides and an upper wall panel having a top, a bottom, vertically extending ends and opposite sides. A vertically extending stanchion has a lower end connected to the top of the lower wall panel and an upper end connected to the bottom of the upper wall panel. The bottom of the upper wall panel is spaced from the top of the lower wall panel to form an open space between the upper and lower wall panels. In a preferred embodiment, a rail extends between the stanchions. Also in a preferred embodiment, a cover covers the space formed between the upper and lower wall panels. In another aspect, a second stanchion is connected to the top of the upper wall panel and a second upper wall panel is connected to the top of the second stanchion. In one preferred embodiment, draw members connect the first upper wall panel to the first stanchion and connect the second upper wall panel to the second stanchion. Alternatively, a draw block, insert and draw rod are used to connect the first upper wall panel to the lower wall panel, and to connect the first and second upper wall panels. In another aspect, a draw rod connects a lower connector post to a first upper connector post, with a spacer post disposed therebetween. A method for assembling a stackable wall panel assembly is also provided.

An expandable framework is provided that can move between an expanded state in use and a collapsed state for storage. A canopy covering is supported by the framework to form an expandable canopy. The framework includes a plurality of upright support members with adjacent ones of which being interconnected by edge scissor assemblies. Upper and lower mounts are located on the support members with some of the mounts having a lobe with outwardly facing substantially parallel sidewalls. At least some of the outer ends of the scissor assemblies are provided with socket fittings that have spaced-apart portions that define a channel opening therebetween to receive a lobe in close-fitted engagement wherein at least one of the portions has a substantially flat face that forms a sliding contact surface with the lobe. A fastener secures each lobe in a respective socket for pivotal movement.

The invention discloses a rapid freight car radial bogie. The rapid freight car radial bogie comprises an axle assembly, a frame, a swing bolster, a braking device, central suspension devices, a radial device, a side bearing device arranged on the swing bolster and an axle box suspension device, wherein the frame is installed on the axle assembly through the axle box suspension device, the two ends of the swing bolster are fixedly installed in the middle of the frame respectively through the central suspension devices, the frame is composed of two side beams and parallel cross beams connected with the side beams, and bearing platforms where the central suspension devices are installed are arranged outside the middle portions of the side beams. The rapid freight car radial bogie structure obviously reduces wheel-rail wear and wheel-rail noise, reduces wheel-rail acting force, reduces vehicle transverse vibration acceleration and improves vehicle operation lateral stability, straight line stability and curve line negotiating capacity. The unsprung mass of the bogie is reduced, the speed of the bogie is high, vehicle braking performance is improved, wheel-rail wear and wheel-rail noise are small, vehicle operation stability is good, and stability and safety are high.

The invention relates to an installation method of a viaduct segment box girder, which is characterized in that a mobile crane is adopted, the box girder segment of a front span is vertically lifted in the front of a front bridge pier; a vertically moving cart and a hoister are adopted and move vertically; and a horizontal moving device is adopted to conduct horizontal contraposition adjustment. The invention occupies relatively little traffic rode space and basically does not occupy the space in the two sides of the viaduct.

The invention relates to a technology of a novel structure of a semi-active damping-adjustable vibration absorber for suspension of automobiles, locomotives and rolling stocks. The vibration absorber comprises two end part connecting rings, a piston rod, a sealing and guiding device, a cylinder body, a vibration absorber cover in threaded connection with the cylinder body, a piston valve assembly and a bottom valve assembly, and also comprises a tensile unloading electromagnetic valve assembly embedded in the piston valve assembly and the piston rod, a compression unloading electromagnetic valve assembly embedded in the bottom of the bottom valve assembly, and an external high-pressure small oil chamber arranged in a lug boss and provided with a master control valve assembly and a safety valve assembly; and the tensile unloading electromagnetic valve assembly, the compression unloading electromagnetic valve assembly and the master control valve assembly are controlled by a controller. By the vibration absorber, the magnitude and the direction of a damping force can be controlled without the relative speed for auxiliary judgment, and both the unloading control related to movement and the control of the magnitude of the damping force are provided.

A spacer and sealant assembly comprising a stretchable sealant support member having a planar surface bounded by first and second edges wherein said first and second edges have at least one pleated portion, a plastic shim having at least one undulating portion in contact with said first and second edges of said stretchable sealant support member so that said at least one pleated portion is oriented concavedly inward into said at least one undulating portion of said shim, a sealant joined to at least said first and second edges of said sealant support member.

The invention discloses a horizontal splicing corrugated steel web plate combined box girder comprising a combined box girder formed by horizontally splicing multiple precast I-shaped girder units (1); and a top plate lower edge steel plate (2-1) and a bottom plate lower edge steel plate (3-1) are respectively connected to the lower end faces of a top plate wet jointing seam (2) and a bottom plate wet jointing seam (3) of two adjacent precast I-shaped girder units (1). The construction method comprises the steps of mounting the multiple precast I-shaped girder units onto a bridge pier abutment, fixing the top plate lower edge steel plates connected with shearing force nails to the top plate wet jointing seams of every two adjacent precast I-shaped girder units, and pouring top plate wet jointing seam concrete (2-3) by taking the top plate lower edge steel plates as support templates; and then fixing the bottom plate lower edge steel plates connected with the shearing force nails to the bottom plate wet jointing seams of every two adjacent precast I-shaped girder units, and pouring bottom plate wet jointing seam concrete (3-3) by taking the bottom plate lower edge steel plates as the support templates. The horizontal splicing corrugated steel web plate combined box girder and the construction method achieve the aims of simplifying the operation process, reducing work amount, shortening construction period, reducing weight and ensuring construction quality.

A support apparatus (10) for use in supporting a person, particularly a bariatric patient. The apparatus (10) is selectively convertible between a seat configuration for supporting the person in a substantially seated position and a table configuration for supporting the person in a substantially prostrate position. The apparatus (10) is both vertically and angularly adjustable in either configuration. The apparatus (10) includes enhanced lateral support provided by telescoping support cylinders (74,76), and substantially automatically retracting foot support portions (50).

The invention provides an airplane with a combined-wing layout of a flying wing and forward-swept wings. The airplane is characterized in that thin-wing type vertical columns A and B are additionally arranged at the 70% wingspan positions of the outer sides of two side wings of a flying-wing airplane with backward-swept wings, a thin-wing type vertical column C is additionally arranged at the tail part of the flying-wing airplane, and horizontal forward-swept wings are additionally arranged at the top ends of the three thin-wing type vertical columns A, B and C so as to form the combined-wing layout of the flying wing and the forward-swept wings; elevators are arranged on the horizontal forward-swept wings and a rudder is arranged on the vertical column C; a duct type air inlet channel is adopted on the upper wing surface of the flying wing, and cracking type drag rudders are distributed at the thin-wing type vertical columns A and B. The airplane provided by the invention has the advantages that under the condition that the structure strength is effectively guaranteed, the effective aspect ratio of the wings is increased, the induced drag is reduced, the lift-drag characteristics of the airplane are improved, the stealth performance of the airplane is improved, direct-force control of the airplane in the vertical direction is realized and the detecting accuracy under the maneuvering condition is improved.