81results about How to "Eliminate tolerance" patented technology

Floor panels (1, 1′) are shown, which are provided with a mechanical locking system having a tongue (30) of magnetic material that could be locked vertically by a magnetic field.

A composite sleeve seal for sealing a conduit connection including a body portion having collar sections spaced apart from one another to define gaps therebetween, and being interconnected to one another by link segments spanning the gaps. A seal portion interposes the collar sections in the gaps and surrounds the link segments to positively interlock the seal portion with the body portion to form the composite sleeve seal as one integral component.

Various embodiments of drug delivery devices and methods of assembling such devices are provided. In one embodiment, a drug delivery device for dispensing medicament comprises a medicament cartridge, wherein the cartridge comprises (i) a distal end, (ii) a proximal end that is opposite the distal end along a body axis of the cartridge, and (iii) a movable piston arranged substantially at the proximate end of the cartridge. The drug delivery device further comprises a piston rod having a distal end for axially moving the piston in the distal direction during dispensing of a set dose of medicament, wherein a relative axial distance between the distal end of the piston rod and a proximal face of the piston is set during assembly of the drug delivery system. The relative axial position between may be set such that the piston rod and the proximal face of the piston abut each other.

An antenna for use in a portable electronic communication apparatus has a pattern of a conductive material. The pattern of conductive material is printed on the Printed Circuit Board (PCB) (7), comprising the RF circuitry of the portable electronic communication apparatus, to which antenna pattern is connected. The pattern comprises a first and second antenna arm, which together for a PIFA antenna and are resonating in a first and second frequency band, respectively. As an alternative, the antenna pattern forms a multi-port antenna having separate antenna arms for Rx and Tx, respectively.

A nonvolative memory in the form of a vertical flash EPROM with high density and low cost. A vertical MOS transistor is formed in well etched into a semiconductor substrate, the substrate having source, body and drain regions formed by ion implantation. A thin gate oxide or oxide-nitride-oxide (ONO) layer is formed in the well and a self-aligned floating gate of polysilicon is formed over the gate oxide in the well to overlie the body region. An anisotropic etch is used to form the self aligned floating gate so as to remove all horizontal components and leave no portion of said floating gate extending beyond the perimeter of said well such that its lateral extents are determined by the anisotropic etch and not photolithography. Leff is determined by the energy of the implants used for form the source and drain regions and not by lithography. A deep field oxide bounding parts of said well keeps the coupling ratio good at all feature sizes. A vertically oriented NMOS and PMOS transistor are also disclosed.

A palletized framing system for a motor vehicle body assembly system in which the pallet with a body structure positioned thereon is positioned at the framing station on balls to establish the vertical Z dimension with the pallet free to float on the balls in longitudinal X and lateral Y dimensions, whereafter positioners carried by one of the gates of the framing station engage and lock onto the pallet to precisely position the pallet and the body structure at the framing station at X and Y dimensions corresponding to the precisely attainable X and Y positioning of the gate.

A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.

An adjustable steering column assembly includes a releasable clamp assembly that clamps a shroud of the assembly in position relative to a support bracket, the clamp assembly including an elongate clamp bolt onto which are stacked:at least a part of an adjustable shroud of the steering assembly, anda cam mechanism comprising a fixed cam part and a moving cam part, the two parts each having a bore through which the clamp bolt passes,a thrust bearing,and a locking nut which includes an internal thread that engages a complimentary thread on the clamp bolt and which is locked down so as to apply an axial load to the thrust bearing. The assembly also includes a tapered compliant bush which is pressed into a space defined between the clamp bolt and the bore of the moving cam part of the cam mechanism with the relatively thick end of the bush nearest the thrust bearing and with the thrust bearing applying an axial load to the bush.

A pedal correction mechanism used in an elliptical trainer is disclosed to include a pedal link having a coupling portion at the inner side thereof, and a pedal bracket carrying a pedal and having a shaft pivotally inserted into the coupling portion of the pedal link for allowing the pedal bracket to be biased leftwards and rightwards on the axis of the shaft relative to the pedal link to eliminate cumulative tolerances among component parts, preventing derailment and reducing noises.

The embodiment of the invention discloses an optical transmit-receive module. The module comprises a circuit board, an optical guide main body, a wavelength division multiplexing optical filter, a first reflection surface, a laser and a detector. The optical guide main body is fixed at the upper surface of the circuit board, the optical guide main body has a first cavity, the opening of the first cavity faces the circuit board, a transmission lens and a receiving lens are formed on the bottom wall of the first cavity, and the protruding direction of the protruding surface of the transmission lens and the protruding direction of the protruding surface of the receiving lens both face the circuit board. The optical transmit-receive module can facilitate the demoulding after the injection moulding of the transmission lens and the receiving lens at the optical guide main body to allow the two lenses to perform one-time moulding on the optical guide main body so as to omit the calibration motion between the two lenses, simplify the structure and the process of the optical transmit-receive module, eliminate the tolerance caused by secondary assembling and ensure the yield rate and production efficiency; and moreover, the protruding directions of the protruding surfaces of the transmission lens and the receiving lens are the same to allow the optical paths thereof to perform alignment at the same time so as to improve the coupling efficiency.

A process comprising: (a) applying a stop etch mask to a substrate, the mask defining the location on the substrate of a groove for receiving a waveguide and one or more fiducials for positioning the optical device on the substrate relative to the waveguide; and (b) etching the substrate to define the fiducials and the groove, the groove being dimensioned to receive at least a portion of a waveguide and the fiducials enabling the optical device to be positioned on the substrate such that it is optically aligned with the waveguide.

A digital syringe is used with conventional polymer disposable syringe construction to be practical in the medical environment. Errors associated with the larger volumes of the syringes (which exacerbate minor errors in plunger position) and the flexibility and dimensional variations of the polymer plungers are accommodated by direct measurement of the syringe plunger position rather than indirect measurement of motor position and inference of syringe plunger position. This direct measurement eliminates mechanical tolerances (“stack up”) in the motor, gear train, and lead screw on plunger movement, an effect exacerbated by flexibility of the plunger and changes in syringe resistance and medicament viscosity, for example, with different medicaments or when the syringe is refrigerated. The digital syringe may be combined with the motor unit to provide additional versatility.

An electrical plug connector based on the push-pull system, with a plug component and a matching plug component that can be connected to the plug component, both of which each include one or several associated electrical contacts held by a contact carrier, and with a locking mechanism that is provided on the plug component and includes at least one movable locking element with a latch surface that is associated, on the matching plug component, with a fixed locking element with a matching surface for the latch surface. The plug component includes a plug component housing with an axially displaceable sliding sleeve with an actuation element for the locking element formed on the inside wall, wherein, when the plug component is connected to the matching plug component, a—in the plug-in direction—frontal section of the circumferential wall area of the plug component housing overlaps the matching plug component on the outside in a plug-in area. The locking element projects radially beyond an inner surface of the circumferential wall area, and the locking of the locking element with the matching locking element is achieved by moving the locking element transversely to the plug-in direction of the plug connector along the circumferential wall area.

The invention discloses a robot automatic auxiliary material pasting assembly line. The robot automatic auxiliary material pasting assembly line comprises a machine platform and two up-and-down reflux conveying modules which are arranged on the machine platform, wherein the two up-and-down reflux conveying modules are respectively a first up-and-down reflux module and a second up-and-down reflux module; a conveying system is arranged between the two up-and-down reflux conveying modules; a bearing tray for bearing a mobile phone shell material is arranged above the up-and-down reflux modules and the conveying system; a turnover mechanism and a discharging module are arranged above the conveying system; a four-shaft robot is arranged by the side of the conveying system; at least one four-shaft robot is arranged between the turnover mechanism and the first up-and-down reflux module; a visual mechanism is arranged below each four-shaft robot. According to the robot automatic auxiliary material pasting assembly line, disclosed by the invention, the equipment runs at a high speed accurately and stably, so much labor and space are saved and the space is saved by 60%.

A gauge for checking the tolerance of a manufactured tube having at least one bend therein is digitally manufactured layer-by-layer using an additive manufacturing machine. Multiple features of the gauge are integrated with each other within a common reference coordinate system to precisely locate the features relative to each other.

An electronic apparatus includes a base and an electronic device. The base includes a first main body and at least one first connection portion. The first connection portion includes a rotating component, and the rotating component is pivoted to the first main body and has a driven portion and a positioning portion. The electronic device includes a second main body and at least one second connection portion. The second connection portion includes an elastic component and a positioning trench. The elastic component is connected to the second main body, and the positioning trench is formed on the second main body. When the base supports the electronic device so that the first connection portion is aligned to the second connection portion, the elastic component pushes the driven portion such that the positioning portion is engaged into the positioning trench.

The invention relates to an electrostatic field therapeutic instrument capable of switching and outputting treatment voltages in order. The electrostatic field therapeutic instrument comprises an input module, a central control processor, a power transformer with at least two output terminals, a plurality of relays, a booster transformer with one input terminal and one output terminal, a high-potential output module capable of outputting a positive treatment voltage and / or a negative treatment voltage, and a relay control circuit, wherein the central control processor inputs a control command to the relay control circuit every two minutes, a plurality of control commands with different level signals sequentially circulate without a stop, and the relay control circuit drives corresponding relays to switch and output different treatment voltages in order through the booster transformer and the high-potential output module according to the control commands so as to generate a high-potential electric field varying regularly to effectively eliminate the human tolerance generated due to changeless output potentials. Therefore, the curative effect of the electrostatic field therapeutic instrument is effectively improved.

A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.

A process comprising: (a) applying a stop etch mask to a substrate, the mask defining the location on the substrate of a groove for receiving a waveguide and one or more fiducials for positioning the optical device on the substrate relative to the waveguide; and (b) etching the substrate to define the fiducials and the groove, the groove being dimensioned to receive at least a portion of a waveguide and the fiducials enabling the optical device to be positioned on the substrate such that it is optically aligned with the waveguide.

A method for producing printing stencils, especially for screen printing methods, and particularly those for use in filling at least one contact hole formed in a printed-circuit board, a pattern artwork being reproduced on the stencil, which corresponds to an arrangement of contact holes on the printed-circuit board. It is provided that the pattern artwork reproduced on the stencil be produced in the same working process, especially a punching process, using a cluster punching tool, as the at least one contact hole on the printed-circuit board. Also, a stencil device is provided.

A digital syringe is used with conventional polymer disposable syringe construction to be practical in the medical environment. Errors associated with the larger volumes of the syringes (which exacerbate minor errors in plunger position) and the flexibility and dimensional variations of the polymer plungers are accommodated by direct measurement of the syringe plunger position rather than indirect measurement of motor position and inference of syringe plunger position. This direct measurement eliminates mechanical tolerances (“stack up”) in the motor, gear train, and lead screw on plunger movement, an effect exacerbated by flexibility of the plunger and changes in syringe resistance and medicament viscosity, for example, with different medicaments or when the syringe is refrigerated. The digital syringe may be combined with the motor unit to provide additional versatility.

A mechanism used for preparing guide angle of end edge on gold finger at circuit board consists of a frame, a tool being set on frame and being set with a numbers of openings, a platform being set on frame near a side of tool and being set with a circuit board and a driver to move platform to tool to let said openings correspond to gold finger on circuit board, a cutter being set on frame near to another side of tool and being used to cut tail end of gold finger at corresponding locations of said openings for cutting out a vertical slope guide angle at tail end of gold finger.