260results about How to "Easy to center" patented technology

A micro-machined multi-sensor that provides 2-axes of acceleration sensing and 1-axis of angular rate sensing. The multi-sensor includes a rigid accelerometer frame, a first proof mass, and a second proof mass. The substrate has two associated acceleration axes in the plane of the substrate, and one associated rotation axis perpendicular to the acceleration axes. The proof masses have a common vibration axis, which is perpendicular to the rotation axis. The multi-sensor further includes a drive electrode structure for causing the proof masses to vibrate in antiphase, a first pair of acceleration sense electrode structures disposed along one of the acceleration axes, and a second pair of acceleration sense electrode structures disposed along the other acceleration axis. The multi-sensor adds the sense signals provided by the respective sense electrode pairs to extract information pertaining to acceleration sensing along the acceleration axes, and adds the differences of the sense signals provided by the respective sense electrode pairs to extract information pertaining to angular rate sensing relative to the rotation axis.

The present invention relates to an apparatus for carrying out a plasma chemical vapor deposition process by which one or more layers of doped or undoped silica can be deposited on the interior of an elongated glass substrate tube. The present invention further relates to a method for manufacturing an optical fiber using such an apparatus.

A laminated rotor core (36) wherein permanent magnets (47) are inserted in respective magnet insertion holes (46) is disposed between and pressed by an upper die (37) and a lower die (29). The upper die (37) has resin reservoir pots (50) provided above the laminated rotor core (36) and at positions corresponding to the respective magnet insertion holes (46). Raw resin material put in the resin reservoir pots (50) is heated by the upper die (37). Subsequently, the resin material in a liquefied state is ejected from the resin reservoir pots (50) by plungers (52) that are inserted and moves vertically in the resin reservoir pots (50) and is directly filled in the magnet insertion holes (46). Consequently, the respective magnet insertion holes (46) are filled with the resin material more evenly and highly reliable products can be supplied at low cost.

The invention relates to a device for injection molding a tubular element from synthetic material, particularly a tube for dispensing pasty product, comprising an outer mold intended to define the external wall of the tubular element, a main insert which, intended to define the internal wall of the tubular element, extends along the axis of the tubular element, the main insert being fixedly connected to the outer mold at a first end during the molding operation and being movable with respect to the outer mold during a demolding operation.

The invention relates to a wheel bearing unit (1) for a vehicle wheel, comprising a hub element (2, 3) which has a axially (a) extending cylindrical section (4) to be supported by a bearing arrangement (5) and which has a radially (r) extending flange section (6) for fixing the vehicle wheel and/or a brake disk at a face side (7) of the flange section (6). To ensure a simple design with high stability the invention is characterized in that the hub element (2, 3) consists of a first part (2) comprising the cylindrical section (4) and the flange section (6) and of a second part (3), wherein the second part (3) has means (8) for centering a wheel rim of the vehicle wheel and/or the brake disk and wherein the first part (2) and the second part (3) are connected by connection means (9).

A monolithic sheet metal chord nailing restricting and web stiffening device features a chord plate combined with a web stiffening structure configured for lateral attachment to the web of a wooden I-joist. The chord plate is positioned on the bottom of the web stiffening structure and features a nail restricting hole having a diameter that corresponds to a predetermined diameter of a chord nail as defined by wooden I-joist manufacturers. The web stiffening structure has a web plate for attachment to the web and a buckling opposing web stiffening rib. Once the web stiffening structure is attached to the web above the bearing rest the nail restricting hole restricts chord nailing position and nail shaft diameter to manufacturer defined limits. Two devices may be combined by a web front bridge plate for simultaneous attachment of two opposite devices along an I-joist end.

A prepackaged mounting assembly for securing a device, such as a ceiling fan, light fixture, or similar device to an overhead beam. The mounting assembly includes an L-shaped mounting box that includes a first and a second junction box. Each junction box includes an integral arcuate flange portion that cooperate to accept a separately supplied bracket thereon. The bracket includes slots therein and the integral flange portion includes downward extending alignment posts to enable easy centering of the bracket under the mounting box and the overhead beam. All hardware required to complete installation of the device is temporarily secured to the L-shaped box for shipment and storage, including an initial fastener and load bearing fasteners. The L-shaped mounting assembly is especially useful for mounting an electrical device to an existing ceiling.

The invention discloses a test stand for testing the performance of a dynamic directional rotary steering drilling tool. The test stand comprises a frame body, a rotating device, a clamping device and a loading device, can simulate the steering process of the directional rotary steering drilling tool in actual well conditions, and can realize random adjustment for the angle of a controllable bent joint within an operating range thereof while the directional rotary steering drilling tool bear the axial pressure torque at the same time. Experimental research on the aspects such as verification for the steering performance, the reliability and a control principle of the directional rotary steering drilling tool through loading the axial pressure and torque, and research on simulated well drilling can also be carried out. The test stand can be used for performance testing and principle verification for the directional rotary steering tool.

The invention provides a portable type large-variable-diameter all-wheel-drive type pipeline robot which comprises a front end plate, a rear end plate, a front rocker arm, a rear rocker arm, a scissor-type reducing mechanism and a positioning all-wheel-drive mechanism, wherein the positioning all-wheel-drive mechanism is arranged on the front end plate; the scissor-type reducing mechanism is arranged on the rear end plate; one end of the front rocker arm is hinged with the front end plate; the rear rocker arm is hinged with the rear end plate; the front rocker arm is hinged with the rear rocker arm to form a shears-fork structure; the scissor-type reducing mechanism is connected with the positioning all-wheel-drive mechanism; and the scissor-type reducing mechanism can slide relative to the positioning all-wheel-drive mechanism to drive the front rocker arm and the rear rocker arm to form shears-fork motion. According to the portable type large-variable-diameter all-wheel-drive type pipeline robot provided by the invention, when the reducing motor rotates, a nut pulls the front end plate to get close to a guide post or get away from the guide post, and scissor-type rocker arms which are synchronously fixedly arranged on the front end plate and the rear end plate open and close, so that a supporting radius of the robot is changed.

The invention discloses a numerical control stirring friction welding system, which comprises a numerical control stirring friction welder [1] provided with control software, wherein a main shaft of the numerical control stirring friction welder [1] is provided with a stirring head [5]; a welding fixture [2] is arranged on a rotating platform [3]; the shaft center of the welding fixture is the same as that of a central shaft [7] of the rotating platform [3]; and a welding structure member [4] is arranged on the welding fixture [2]. The invention also discloses a welding method for the system, which comprises the following steps: 1, the compiling of numerical control programs; 2, system debugging; 3, assembly; 4, system centration; 5, the set of welding parameters; and 6, system zero restoring. The numerical control stirring friction welding system solves the problems of the welding of space curve welding seams and plane two-dimensional welding seams, and has the advantages of high welding precision, simple and convenient operation, and the like.

A combined pressure and temperature sensor for recording the pressure and the temperature of a medium. A sensor element of the combined pressure and temperature sensor includes a through-hole to a diaphragm and a bore for accommodating a temperature sensor. The diaphragm cooperates with a pressure sensor. At an end face of the sensor element, on the side of the medium, a cover is fastened, in which a hollow space is developed to accommodate the temperature sensor.

A multi-functional sunshade is provided, including housing (1), raising and lowering mechanism (2) and folding mechanism (3), in which raising and lowering mechanism (2) connects to housing (1), and raising and lowering mechanism (2) drives folding mechanism (3) for spreading and drawing in. Housing (1) comprises housing body (11), motor. Raising and lowering mechanism (2) comprises: raising and lowering rod (21), raising and lowering platform (22) and raising and lowering seat (23), in which: motor set up in housing body (11) drives raising and lowering platform (22) to move along the axial direction of raising and lowering rod (21), which is installed in housing body (11) via raising and lowering seat (23). In case of equipment failure, it can draw in the sunshade cloth through an emergency mechanism and uses a plug-in buckle to increase the assembly efficiency substantially. It has a broad market prospect.

A method and a device for forming at least a first pattern on a substrate (6,28), which is coated with a layer (5) on at least a first planar surface, are described. According to the method, a first pressing means (27) is arranged with a first structure (32) that defines the pattern, and the substrate (28) is arranged so that the first pressing means (27) is separated from the substrate (28) and so that the first pressing means (27) and the substrate (28) are unable to move transversely of the common center line (50) but are able to move freely in a direction first pressing means (27) is contacted with the substrate (28) while maintaining the common center line, and a pressure is applied to the substrate (28) and the first pressing means (27) to form said at least one pattern in the layer (30)

The invention relates to a three-axis testing machine and a testing system, including a loading frame, a test piece box, a base, six actuators, a lifting cylinder, and a locking cylinder, wherein the axes of the six actuators intersect at one point O; the actuator is used to provide the test piece in the test piece box with six loads perpendicular to the six surfaces of the test piece, so that there are independent loading/unloading capabilities in three directions perpendicular to the surface of the test piece; the test piece The box is used to install and position the test piece, so that the geometric center 0'' of the test piece coincides with the geometric center 0' of the test piece box, and the geometric center O' of the test piece box coincides with the point O, and at the same time the Any plane is perpendicular to the axis of any actuator. The triaxial testing machine and test system can conveniently and quickly complete the centering process of the specimen, not only can load the specimen in three directions and six sides to complete the true triaxial test, but also , It can also realize one-way sudden unloading and complete the rockburst test.

An oral orthosis includes a holder in the shape of a mouthpiece, including a curved arcuate trough-like upper section which receives a formable material. The formable material does not occupy the entire trough but rather includes voids between the formable material and the inner surfaces of trough of the holder to allow expansion of the formable material into the voids during the molding process when tooth pressure is placed on the formable material. This design results in elimination of the excess formable material which otherwise would require removal by trimming. Additionally, the formable material is placed in the trough in a configuration which includes indexing indentations along the centerline of the material, such that, during the molding process, the mouthpiece containing the formable material is easily centered along the edges of the user's teeth to provide a precise fitting.

A reconfigurable vehicle console having a plurality of interchangeable overlapping blank and equipment mounting face plates, including both tongue-and-groove joints between adjacent face plates, as well as optional lap joints.

The roller changer for multiple roller rolling mill includes frame, two-layer connecting shaft seats, rotary connecting shafts supported with the connecting shaft seat, and sleeves in one end of the connecting shafts. Under the support of the frame, the connecting shaft seats and thus the connecting shafts may be shifted vertically and/or horizontally, while the sleeves are relatively fixed. The present invention is favorable to the centering of driving rollers and the automatic centering of the sleeves to realize fast roller change in high efficiency.