307 results about "Middle plane" patented technology

The finding regards a bicycle saddle of the type which has two identical portions (1′, 1″), longitudinally symmetrical. Each of these two portions has a rear part (2), a part (5) of transversal middle plane as well as a front part (6). The two portions (1′ and 1″) of the saddle are separated, at their intermediate parts (5) and front parts (6), by a channel (8). Thanks to this particular configuration the user arranges his buttocks very comfortably on the rear part of the saddle and avoids the squashing of his pelvic viscera. The saddle according to the finding is suitable both for those who use a bicycle for short journeys and for users who use a bicycle for long journeys like, for example, cycling-lovers and amateur and professional sports people).

The invention relates to a device and method for vibration measurement and failure analysis of a rolling bearing. The device comprises a detected bearing mounting device, a speed sensor, a signal conditioning circuit, a data collection device and a computer, wherein a detected bearing is mounted on a mandrel of the detected bearing mounting device; a vibration rod of the speed sensor is arranged on a middle plane of an outer cylindrical surface of an outer ring of the detected bearing with prescribed pressure, the measurement direction is along the radial direction of the bearing and vertical to the axis of the bearing, and the signal conditioning circuit and the data collection device are connected to the computer; the speed sensor measures radial vibration speed signals of the outer ring of the bearing, the picked bearing radial vibration speed signals are converted into corresponding electric signals which are processed by the signal conditioning circuit and then transferred to the data collection device which carries out A/D conversion of the conditioned signals to convert the conditioned signals into digital signals capable of being processed by the computer, and finally the computer carries out analysis and processing of the digital signal. The device and the method are applicable to production test and user acceptance of finished bearings by laboratories and bearing manufacture factories.

A rigid filter for capsules suitable for extracting beverages, comprising a flat body having a plurality of through filtering holes, which are sized so as to block the passage of solid particles and allow passage of brewed water or beverage, wherein the holes have a substantially symmetrical shape with respect to the middle plane of the flat body, so that the filter can be inserted into a capsule without taking care of the orientation of such holes with respect to the powdered substance within the capsule.

The invention discloses a single-fed dual-bandwidth wave beam circular polarization antenna which comprises a metal floor (1), two layers of dielectric slabs (2), a radiation paster (3), a coaxial feed unit (4) and a metal bracket (5), wherein the radiation paster (3) comprises a coupling radiation paster (3a), from which a triangular corner is cut, and a main radiation paster (3b); complementary opening resonance rings (6) are etched on the main radiation paster (3b) and embedded with one another; the central points of the complementary opening resonance rings (6) are overlapped, and the opening directions are opposite; the main radiation paster (3b) is printed on the upper surfaces of the dielectric slabs (2); the coupling radiation paster (3a) is printed on the middle plane of the two layers of dielectric slabs (2); the coaxial feed unit (4) is arranged in the two layers of dielectric slabs (2) in a deviation manner; and the metal bracket (5) is symmetrically arranged on the four corners of the two layers of dielectric slabs (2). The dual-bandwidth circular polarization antenna with the characteristics of wide wave beam, high gain and low coupling is realized and can be applied to satellite communication.

An electrical connector comprises a housing (12) and a substantially rectangular case (13) made of a metal and enclosing the housing. The rectangular case includes at least one connection portion (28) on a side of a lower surface thereof for connection with a circuit board, a resilient lock piece (20) and a pair of shield pieces (26) between the upper and lower surfaces the rectangular case for engaging a mating connector. The upper surface of the case is made flat for easy assembling with the housing. The resilient lock piece has a bending portion (21), which is bent toward an inner of the rectangular case and the shield pieces are provided on sides of the resilient lock piece.

There is disclosed a wristwatch (21) including a middle part (22) defining a middle plane (Y), conductive means (35, 36) for attaching the wristband (32) to the middle part, a radio-frequency module (27) arranged inside the middle part and connected, on the one hand, to a ground plane and, on the other hand, to a radiating element, insulated from each other and forming an antenna. The ground plane includes at least one conductive surface portion (37) of the wristband connected to the wristband attaching means and the middle part which is conductive, the latter being connected from the inside to the radio-frequency module. The radiating element includes a first conductive surface element (25) arranged in a substantially parallel plane to the middle plane defined by the middle part.

A double-sided cutting insert with a plurality of indexable convex cutting edges can have a top face and a bottom face, at least three convex cutting edges on each face connected by at least three nose corners, at least three peripheral side surfaces extending from each face toward a virtual middle plane; and a common lateral seating surface on each peripheral side surface. Each convex cutting edge can have at least a curved cutting edge region, and can further have a primary substantially straight cutting edge region intermediate the curved cutting edge region and the nose corner. Each peripheral side surface can further have a primary planar facet associated with the primary substantially straight cutting edge, and each face may also be single-handed in same direction.

The invention provides a system and method for determining nonlinear membrane stress. According to the invention, a membrane material is taken as a multilayer board shell structure to perform mechanic modeling so as to define the deflexion, cross section corner, middle plane internal displacement or curvature variation on the middle plane of the multilayer board shell structure as well as nonlinear geometric relationship to describe the deformation of the membrane material. Shape measuring equipment is adopted to measure the deformation of the membrane material caused by membrane stress, and the deformation is represented as the deflexion, cross section slope, middle plane internal displacement or curvature variation of the thin-film material. The finite elements of the multilayer board shell structure are adopted to discrete the geometrical model of a detected object, the measured values of degree of freedom of all or part of finite element nodes are given in a direct measurement or indirect interpolation manner, the least square fitting condition between the deformation generated by membrane stress at the nodes and the measured deformation is created, and the membrane stress is reversely solved through nonlinear iterative computations. As for membrane temperature mismatching stress belonging to part of the membrane stress, the nonlinear temperature mismatching stress of the membrane material with a deformed base body is calculated and considered at the same time under the condition of given temperature variation.

A method for automatically assigning a communication port address and the blade server system thereof are provided. The blade server system comprises a middle plane and a plurality of hot-swappable devices. The middle plane has a plurality of slots. Each of the hot-swappable devices has a connector coupled to one of the slots. Each of the slots respectively corresponds to a slot ID. A particular hot-swappable device plurality of the hot-swappable devices is received at a particular slot of a plurality of slots. The particular hot-swappable device obtains the corresponding slot ID of the particular slot via the particular connector. The particular hot-swappable device generates a particular communication port address according to the particular slot ID. The particular hot-swappable device further broadcasts the particular communication port address to other hot swap devices already received at the middle plane, and receives the respective communication port address thereof.

An elongate pinch housing is provided which is U-shaped in cross-section with two sidewalls and with a web wall connecting these. A pinch roller is longitudinally displaceable in these sidewalls with an annular notch at its one circumferential corner region for forming the regulation cross-section of the flexible tubing. The pinch housing in its transition region from the web wall to that sidewall which is distant from the annular notch of the pinch roller is provided with an inner, elongate side guide surface for the flexible tubing. The side guide surface projects into the pinch housing and runs inclined to its longitudinal middle plane so that the flexible tubing inserted in the pinch housing is subjected to a transverse movement.

The invention discloses a spherical hinge which is provided with a large operating space. The spherical hinge is characterized in that a double-lug supporting frame (10) and a lower supporting rod (11) are fixedly connected with a supporting ball socket (1) into a whole, the double-lug supporting frame (10) is rotationally connected with a U-shaped shifting fork (3) through pins (2 and 9), the U-shaped shifting fork (3) is installed at the outer side of the double-lug supporting frame (10), a rotating supporting frame (6), the pins (7 and 7`) on the rotating supporting frame and supporting rollers (8 and 8`) are nested on an output rod (5) together, and the lower end of the output rod (5) is fixed with a ball head (4) centrally and is arranged in the supporting ball socket (1); the U-shaped shifting fork (3) is a semicircular arc cylindrical combined body, pin holes are arranged at both ends of the U-shaped shifting fork, and a radial sealed long groove internally and externally transparent and taking the middle plane of axial width as a symmetrical plane is arranged along the circumferential direction; the output rod (5) penetrates through the sealed long groove and can swing reciprocally in the sealed long groove. The spherical hinge has the advantages that the swinging space of the output rod is large, the structure is simple, and the volume is small, etc. The important basic unit in mechanism, namely the performance of the spherical hinge is changed in the spherical hinge, thereby bringing important influence to the mechanical design in engineering.

The invention discloses a system and method for determining film stress of multiple layers of films and belongs to film stress measuring technologies in the manufacturing process of integrated circuits and micro electro mechanical systems. Film material is of a multi-layer plate and shell structure for mechanics modeling so that deformation of the film material can be described with the deflection and the cross section rotation angle defined on the middle plane of the plate and shell structure, displacement or curvature torsion changes inside the middle plane and a linear or nonlinear geometrical relationship. Shape measurement equipment is adopted for measuring deformation, caused by film stress, of the film material layer by layer, a plate and shell structure finite element is adopted for dispersing the measured objects so that measuring values of all or partial finite element node freedom degrees can be given in a direct measurement or an indirect interpolation mode, the least square fit condition between deformation, at nodes, generated by film stress and measured deformation is established, and film stress of all the layers of films is reversely determined through linear or nonlinear iterative computation. Under the condition that a set temperature changes, linear or nonlinear temperature mismatch stress of the film material can be computed.

The invention discloses an induction-ultrasound combination assisted laser metal forming method. Induction heating and ultrasonic vibrating are used in assisted laser metal forming simultaneously, an ultrasonic transducer is arranged inside an ultrasonic loading table, and a base body is rigidly connected to the ultrasonic loading table; the positions of induction coils are adjusted, and the middle planes of the induction coils and the forming surfaces of the base body are spaced by an appropriate distance; an induction heating power source is turned on firstly, an ultrasonic generator is turned on later, and the temperature of the base body is controlled through an infrared temperature control system; the positions of the center planes of the induction coils are adjusted in real time through a linear stepping motor in the forming process, and the relative distance between the center planes of the induction coils and the formed surfaces keeps unchanged; laser metal forming is carried out under the continuous effect of induction heating and ultrasonic vibrating, the induction heating power source is turned off after forming is completed, and then the ultrasonic generator is turned off. According to the method, through coupling reinforcement of auxiliary effects of induction heating and ultrasonic vibrating, laser near-net forming of high-performance and high-compactness metal parts is realized.

Taught is an espresso coffee machine comprising a supply unit (101) supplying hot water; and filter-holder means (2, 102) for containing a pre-packaged measure (3) of coffee powder; said supply unit (101) and said filter-holder means (2, 102) being sealingly engaged with each other along a path of the engaging movement, said path of the engaging movement lying in a plane substantially perpendicular to the middle plane of engagement of said supply unit (101) and said filter-holder means (2, 102), the surfaces of said unit (101) supplying said filter-holder means (2, 102) coming into contact only upon engagement of the latter; and an ejection member (401) arranged in the vicinity of the periphery of said supply unit (101) and projecting perpendicularly with respect to the middle plane of engagement of said supply unit (101) and said filter-holder means (2, 102).

The invention relates to an injection needle for injecting a pharmaceutical product into a human or animal body. The needle comprises a tubular body with an end for penetrating into a human or animal body, and having a main bevel and a secondary bevel forming a tip of the needle. The secondary bevel is positioned opposite the main bevel and forms, with the main bevel, a single cutting edge oblique to the longitudinal axis of the tubular body. The cutting edge extends on both sides of a middle plane of the main bevel that passes through the longitudinal axis of the tubular body.

The invention discloses a method and a system for testing gap values of workpieces on the basis of laser light. The method includes a process for determining gaps with jump and a process for determining gaps without jump. The process for determining the gaps with the jump includes that whether three continuous planes are available in two-dimensional contour data measured by laser line scanning sensors or not is judged by the aid of gap determination parameters, the middle plane is positioned below the left plane and the right plane, the gaps with the jump are reserved in objects if the three continuous planes are available in the two-dimensional contour data, and the sizes of the gaps are equal to a length value, namely, an absolute value of a difference value of X-axis numerical values ofan intersection B1 of the first plane and the second plane and an intersection C1 of the second plane and the third plane, of the middle plane in the contour data. The process for determining the gaps without the jump includes carrying out point-by-point comparison to judge whether X-axis numerical values of every two adjacent points are larger than gap distance determination parameters or not; determining that the gaps without the jump are reserved in the tested objects if the distance D between every two adjacent points is larger than the gap determination parameters. The gaps without the jump are larger than or equal to the distances D. The method and the system have the advantage that the problems of lower measurement accuracy and insufficient automatic judgment ability of gap measurement at present can be solved by the aid of the method and the system.

A test-bed balance adjustment method for the HP-IP (High pressure-Intermediate Pressure) rotor of a 600 MW steam turbine relates to a method for the test-bed balance adjustment of a rotor and aims to solve the problems of low balance efficiency and low balance accuracy of the existing balance method for the HP-IP rotor of the 600 MW steam turbine. In a low speed balance process, the residual balance amount of each plane of the rotor is controlled within 200 g; in a high speed balance process, when the vibration velocity of the first-order critical rotating speed of the rotor is greater than 2.5 mm/s; a balance weight is arranged on the middle plane of the rotor for weight increase adjustment; when the vibration velocity of the first-order critical rotating speed of the rotor is lower than 2.5 mm/s, no weight is increased on the middle.