398results about How to "Reduce structural strength" patented technology

A tool case including modular storage compartments. In one aspect, the tool case includes a translucent cover and the modular storage compartments can be removed from the tool case and displayed or mounted to a surface. In another aspect, the case may be configured such that the gravitational load of the contents of the case does not flow through the cover when the case is lifted by a handle, thus facilitating the cover to be made from lightweight translucent material. This configuration is achieved by connecting the handle to the floor of the base of the case, allowing the handle to protrude through an opening in the cover, the cover being separately removable.

Disclosed are various devices useful as components of a system for authorizing purchases associated with a vehicle that are generally simple to install, operate and maintain and are generally resistant to abuse. Devices disclosed include theft-resistant vehicular identification tags, sealed identification tag reader and variable range tag-readers.

A method for forming a pultruded part includes collating reinforcing fibers by providing a first layer of reinforcing rovings extending in the longitudinal pultrusion direction, applying onto the first layer an intermediate layer of reinforcing fibers at least some of which include at least portions thereof which extend in the transverse direction and covering the intermediate layer with a second layer of rovings extending in the longitudinal direction. Alternatively the transverse fiber layer is formed on the inside surface of a hollow part. To the collated fibers is applied a urethane resin so as to permeate through the layers and the materials are passed through a die to form a thermo-set cross-linked poly-urethane. The transverse layer or layers are relatively thin having a weight less than or equal to 0.5 ounces per square foot and more preferably as low as 0.25 ounces or 0.1 ounces.

The method provided by the invention comprises the following steps: a machine body, a walking part, a lifting part, a reciprocating pounding part and the like are arranged; a pounding guide element and the like are arranged on a pounding guide device; pounding heads are arranged at two ends of the pounding guide element, so that a power pounding element drives the pounding guide element; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; and the walking part drives the machine body to move ahead and retreats so as not to turn the machine body to excavate and drop materials forward and backward. Equipment provided by the invention comprises the machine body, the walking part, the lifting part, the reciprocating pounding part and the like; the reciprocating pounding part comprises the pounding guide device, the pounding driving device and the like; the pounding heads are both arranged at two ends of the pounding guide element; the pounding driving device comprises the power pounding element and the like; the power pounding element drives the pounding guide element to move in a reciprocating mode; the pounding guide element drives the pounding heads to pound; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; the walking part drives the machine body to move ahead and retreat so as not to turn the machine body to excavate and drop materials forward and backward.

Implant devices for the internal fixation of fractured bones, and more particularly to ankle plates for the tibia bone are disclosed and include an anterolateral tibia plate having an L-shaped body including a proximal portion defining a longitudinal axis, and a distal portion defining a traverse axis, and having a support bridge connected between the proximal portion and the distal portion. Implant devices disclosed also include an anterior tibia plate having an elongated first portion, a second portion that widens outward with respect to the elongated first portion, and a plurality of removable tabs attached to the outer edge of the second portion. Implant devices disclosed also include a medial tibia plate having an elongated shaft with a proximal portion and a distal portion. The distal portion is configured to extend proximate to a base of medial malleolus, and has a curvature with respect to a longitudinal axis defined by the elongated shaft. The distal portion may include a plurality of removable tabs. The removable tabs may be disposed to define an opening between the removable tabs to orient a bone fastener into a bone.

The invention discloses a method for improving slope stability of expansive soil and controlling structural damage of the expansive soil. An expansive soil slope form obtained through the method prevents direct contact of the expansive soil and the atmosphere and effectively avoids weathering of the expansive soil. A water-proof geomembrane is covered on a surface layer of the expansive soil, drainage facility is arranged on the surface layer of the expansive soil, variation range of water-containing rate in the expansive soil can be effectively reduced, and expansive deformation of the expansive soil is reduced. An overlaying load function further limits expansive and shrinkage deformation of the expansive soil and generation and development of fractures, avoids structural damage of the expansive soil, and prevents the structural strength from being reduced, each stagee of stopping wall adopts a flexible protection structure which can avoid damage of the structure caused by discordant deformation between the expansive soil and the structure, so that a slope protection structure has strong capacity to be adapted to deformation and antidumping capacity. The method for improving slope stability of expansive soil and controlling structural damage of the expansive soil is simple and convenient to construct and good in effect.

The present invention relates to a liquefied gas storage barge in the form of a concrete floating structure. The barge of the invention is essentially constituted by a floating structure (1) of reinforced and prestressed concrete containing tanks (2) for liquefied gas. Said tanks (2) are cylindrical tanks each having a cross-section perpendicular to its longitudinal axes that comprises a preferably circular curved portion (3) corresponding to the bottom of said tank, said portion being preferably a bottom half-circumference resting directly on the concrete bottom of the barge, which barge bottom is in the form of adjacent part-cylindrical troughs (3), each part-cylindrical trough having the same preferably circular, partially curved section in register with the bottom of each tank.

The present invention is an improvement in the design of a perforating gun to perforate the casing in oil and gas wells. Perforating guns have a cylindrical body member with explosive charges at specified intervals designed to shoot outwardly through the body member, the well casing, cement sheath, and into the rock formation. There are recessed areas, scallops, on the outer surface of the body member where the perforating jets, formed by the explosive charges, exit the body member. The present invention uses the strength of an arching geometric shape for the recessed area to be able to further reduce the thickness of steel for minimal resistance to the perforating jet. Minimizing the resistance to the perforating jet increases the depth of penetration into the rock formation and increases the hole size.

The invention discloses a vibration damping and noise reduction device of an acoustic black hole. The vibration damping and noise reduction device comprises a disk-shaped structure whose distance between upper and lower surfaces is reduced gradually from the central axis to the external periphery, the disk-shaped structure comprises a block hole area, the distance between upper and lower surfacesof the black hole area is changed in the form of power exponent from the central axis to the external periphery, the disk-shaped structure is added to a noise reduced structure to carry out vibrationdamping and noise reduction on the noise reduced structure, the thickness of the noise reduced structure needs not to be reduced, and the noise reduced structure is avoided from locally high dynamic response or reduction of the structural intensity.

The invention relates to an ultra high speed test CRH train bogie and belongs to the field of railway vehicle bogie devices with elastic deformation buffering capacity, the problem of welding stress centralization is solved by a horizontal and longitudinal beam integrated type tray frame, and a wing-shaped elastic support arm of an elastic frame can have a damping effect by own elastic deformation. According to the novel bogie, by the aid of matching usage of the elastic frame and motor suspension devices with vibration absorption functions, high cut-down and inhibition effects can be realized on motor vibration, and accordingly, the vibration frequency control difficulty of a power system is reduced greatly and surplus vibration damping buffering components can be effectively cut down, so that redundant components can be simplified greatly, the structure dimension is shortened, and the weight is reduced. Master pin backward titling structures of traction wheel sets can swing consistently in S shapes. The ultra high speed test CRH train bogie can overcome inherent mutual contradiction of dual requirements on two aspects of lightweight design and speed lifting of a 500km/h ultra high speed train and is a novel breakthrough in the field of localization ultra high speed bogies.

A system for use in filtering a slurry using air pressure to squeeze the slurry material and dewatering it. The system including a source of slurry, a chamber, a filter belt that passes through the chamber, a manifold inlet supplying the slurry to a first side of the filter belt to form a uniform moist cake of the filter material, an inlet seal and an outlet seal to seal a belt inlet and a belt outlet formed on the chamber, and a source of the pressurized air selectively applicable to the chamber to dry the moist cake of filtered material.

A method of manufacturing bonded substrates. The method includes providing a metallic substrate. The metal substrate has a predetermined thickness. The method also includes bonding a first thickness of compound semiconductor material overlying the metallic substrate and reducing a thickness of the first thickness of compound semiconductor material to a second thickness. The method includes forming one or more via structures through a portion of the second thickness of compound semiconductor material to a portion of the underlying metal substrate, whereupon the via structure electrically connects to the metal substrate.

A reinforcement structure of safety helmet and a manufacturing method thereof. The reinforcement structure includes a helmet body formed of a cushion foam material; and a structure body integrated with the helmet body. The structure body is a texture at least composed of multiple strip members arranged in an array. The structure body is formed with a substantially cellular structure. The helmet body is defined with a top section and a peripheral section and the structure body is defined with a first section and a second section connected to the first section corresponding to the top section and peripheral section of the helmet body. The cushion foam material is injected into a molding module to enclose the first and second sections to form an integrated complex reinforcement structure, which is easier to manufacture and has higher structural strength, lighter weight and higher security.

A robot driving structure has a base (101), a first arm (102) hinged to the base (101), a second arm (103) hinged to the first arm (102), at least two servo power units (105, 307), and a driving wheel (302) and a flexible rope (304) which are arranged on the base (101). The driving wheel (302) is connected to the base (101) by a supporting arm; one servo power unit (105) is provided between the base (101) and the first arm (102), and the driving wheel (302) is connected to another servo power unit (307). The flexible rope (304) is engaged with the driving wheel (302), and one end of the flexible rope (304) is connected to the second arm (103).Driven by the driving wheel (302), the flexible rope (304) pull the second arm (103) to swing, and the two servo power units (105, 307) drive the first arm (102) and the second arm (103) together to realize a coordination movement. The joint of the flexible rope (304) and the second arm (103) is located on the far end of the second arm (103), thus the driving force can be applied more directly, and the working accuracy and the load capacity of the driving structure can be improved.

The invention discloses a mechanical structure of an indoor building profile installation robot. The mechanical structure comprises a base, a mechanical arm and a mounting end. The mechanical arm is composed of three sets of connecting rods in series. Each set of connecting rods is connected with the last set by a connecting rod in a hinged mode, a rotating driving force is provided by a hydraulicoil cylinder in a both-end hinged mode, the set of connecting rods at the top is composed of three connecting rods and hinged to the mounting end through a tail end hinged part, and it can be ensuredthat the mounting end performs translational motion in the up-and-down and front-rear direction when the mechanical arm moves. The mechanical structure of the robot cooperates with a control system and a driving device, the problem of large-size high-weight building profile installation under the conditions of height and working space limitation can be solved, the mechanical structure can be usedfor transport installation of building profiles in indoor and outdoor low-altitude environments such as a workshop and a workshop, the operation is simple, the running is smooth and saves labor, andthe mechanical structure is efficient and safe.

The invention discloses a granular cold water soluble porous starch which is prepared by a method comprising the steps of: mixing porous starch and alcohol solution to form slurry, adding sodium hydroxide under the condition of stirring, and stirring for reaction at the constant temperature; after the reaction, leading reaction liquid to stand still or centrifuge, separating for precipitation, and washing by the alcohol solution; then, adding the alcohol solution, and neutralizing mixed solution to be neutral by using hydrochloric acid alcohol solution; filtering, washing a filter cake by the alcohol solution, drying, crushing and screening; and finally, obtaining the granular cold water soluble porous starch. The granular cold water soluble porous starch not only maintains the granular structure of the original starch and the porous structure of the surface of the porous starch, and has larger specific surface area and good absorption embedding performance, but also can be more rapidly dispersed and dissolved into the cold water, and has the dissolution rate reaching up to more than 70%. Furthermore, the preparation method is simple, and industrialized production can be easily realized.

The invention discloses a combined type bidirectional moving intelligent garage carrying robot. A traveling mechanism for driving a first trolley to move forwards and backwards, a sliding eliminating mechanism for eliminating a parking deviation of a vehicle, a lifting mechanism for lifting the vehicle and a clamping mechanism for clamping tires of the vehicle are arranged on the first trolley. According to the combined type bidirectional moving intelligent garage carrying robot, no comb tooth exchange is needed, and reduction of the service life of each tire due to excessive squeezing on the tire is avoided; automatic matching with the consistent clamping degree of the position and the size of each tire can be realized; in an alignment process, no friction is generated on the tires, the ground vibration is isolated, and the universality is high; the combined type bidirectional moving intelligent garage carrying robot has the advantages of low civil engineering requirement, high carrying efficiency and the like; meanwhile, the combined type bidirectional moving intelligent garage carrying robot is simple in structure, low in cost, high in working efficiency, long in service life and easy and convenient to operate.

The invention discloses a three-phase mixed excitation magnetic flux switching motor structure which comprises a rotor, a stator, permanent magnets, a DC excitation winding and a three-phase armature winding. The stator and the rotor respectively have a salient pole gullet structure. The stator comprises a plurality of stator poles. A stator gullet is arranged between two adjacent stator poles. Each stator gullet is internally provided with two windings, namely a three-phase armature winding and a DC excitation winding. The three-phase armature winding and the DC excitation winding are centralized windings. A plurality of permanent magnets exist and are respectively arranged at the opening of each stator gullet. Furthermore the permanent magnets at two sides of one stator pole have same polarity. The three-phase mixed excitation magnetic flux switching motor structure has advantages of novel structure, reliable performance and simple control. After the permanents are added, not only can motor torque output improvement and motor copper loss reduction be realized, but also a demagnetization problem of the permanent magnets is prevented because of a placement position relationship. The three-phase mixed excitation magnetic flux switching motor structure further has advantages of improving reliability and utilization rate of the permanent magnets and greatly improving electromagnetic compatibility of the motor.

A process for determining a remaining life of a part, such as an airfoil in a gas turbine engine, comprising the steps of establishing the boundary conditions that act on the part, determining the material properties of the part, creating a 3D finite element model of the part and determining the residual stresses on the part, observing the actual part for cracks, and comparing the location of the crack to the residual stresses determined on the model at the crack location. If the residual stress at the crack location passes into the wall of the part beyond a predetermined length, then the part is rejected for further use.

The invention discloses lightweight high-strength concrete and a preparation method thereof. The lightweight high-strength concrete comprises the following components by weight: 550-650 parts of Portland cement, 120-150 parts of pumice stone, 100-150 parts of expanded perlite, 90-110 parts of fly ash, 75-80 parts of glass beads, 10-25 parts of methyl silicone oil and 110-130 parts of water. The lightweight high-strength concrete has the beneficial effect of high structural strength.