336results about How to "Large tolerance" patented technology

A foldable intravascularly insertable blood pump employs an impeller with radially delivering vanes in combination with an annular deflection channel. The impeller is driven by a shaft extending through a catheter wherein the impeller and its envelope are foldable by relative displacement of the shaft and catheter.

A wireless data communication system for a down hole environment. The system includes a housing containing a sensor, positioned within a tubular, for collecting information and processing the information, a modulator for modulating the information from the sensor into an analog signal, and a sensor antenna electrically connected to the first modulator for generating a modulated electromagnetic wave. The system further includes a probe housing, concentrically disposed within the tubular, comprising a probe antenna for receiving the modulated electromagnetic wave and generating an output, and a demodulator for demodulating the electromagnetic wave received from the sensor to a digital record. A method of wirelessly communicating between a probe and a remote sensor is also disclosed.

A reflective polarizer contains:(a) a light-entrance medium having a light-entrance surface and a microstructured surface with a series of prismatic structures, wherein first and second sidewalls of each prismatic structure have an inclination angle of more than 53 degrees with respect to the light-entrance surface;(b) a polarization-selective thin film optical coating on the series of prismatic structures, for transmitting a first polarization of light and reflecting a second polarization; and(c) a light-exit medium on the polarization-selective thin film optical coating that provides a smooth light-exit surface.

Drug delivery system comprising a cartridge with an axially displaceable piston, and a front-loaded cartridge holder adapted to axially receive and hold a cartridge in a loaded position. The cartridge comprises first coupling means arranged at the distal portion, and the cartridge holder comprises second coupling means arranged at the distal portion, wherein the first and second coupling means are configured to engage each other to thereby axially secure a cartridge mounted in the cartridge holder.

In a method and a corresponding device for outputting parking instructions to a driver of a vehicle, the parking process is divided into a multiplicity of sections each having a constant specified steering angle, and there being situated between each two sections a stopping point that is to be approached after a corresponding stop instruction within a stopping path. A respective tolerance band is defined for the stopping path and / or for the steering angle, a corresponding stop instruction, corresponding to a specified stopping path, and / or a corresponding specified steering angle being defined for each section, taking into account the respective tolerance band.

A trim component (1) includes a substrate (2) and two different cover materials (3, 4), which are not spliced together but are independently adhesively bonded onto the substrate (2) by a hot-melt contact adhesion. The junction (7) is received in a valley (6) of the substrate that is pinched closed using a molding apparatus that includes a horizontally movable pinching stamp (13) which forms a pinching gap (16) relative to a protruding edge (11A) of a fixed mold tool (11). A tucking blade (22) cooperates with a counter-clamping blade (26) to clampingly hold and then press the substrate and junction of the cover sheets into the pinching gap. The tucking blade is then retracted while the pinching stamp pinches closed the pinching gap, to form a tightly closed valley in the substrate with the junction cleanly pinched therein.

A wireless data communication system for a down hole environment. The system includes a housing containing a sensor, positioned within a tubular, for collecting information and processing the information, a modulator for modulating the information from the sensor into an analog signal, and a sensor antenna electrically connected to the first modulator for generating a modulated electromagnetic wave. The system further includes a probe housing, concentrically disposed within the tubular, comprising a probe antenna for receiving the modulated electromagnetic wave and generating an output, and a demodulator for demodulating the electromagnetic wave received from the sensor to a digital record. A method of wirelessly communicating between a probe and a remote sensor is also disclosed.

A photovoltaic device having a front and back orientation and comprising: a crystalline substrate having a resistivity greater than about 0.01 ohm-cm; and an epitaxy thin-film layer in front of said substrate, said thin-film layer contacting said substrate in at least one region to define a p-n junction.

The invention relates to a tool holder (10) for shrink-fit attachment of rotating tools (11) with predominantly cylindrical shafts (12), having a chuck (13) with a clamping section (14) containing a conical receiving bore (15) to accommodate an insert (30) that has a cylindrical bore (32) to accommodate the tool shaft (12) and has a conical outer surface (31 ) to be contained in the receiving bore (15) of the clamping section (14). The insert (30) is embodied so that after the axial insertion of the insert (30) into the hot chuck (13), a contact is produced between the insert (30) and the chuck (13) on the one hand and between the insert (30) and the inserted tool shaft (12) on the other hand and, when the chuck (13) cools, the tool shaft (12) is clamped, wherein it is possible to bridge over large diameter tolerances while achieving maximum clamping forces (FIG. 1).

The present invention provides a dual-frequency phase-shift three-dimensional measurement method and system. The measurement method includes the following steps that: a computer is utilized to generate two sets of phase shift projection fringes with different frequencies, the fringe period of the phase shift projection fringes satisfies an equation that T1=(A+1 / C1)T2, wherein T1 is a low-frequency stripe period, and T2 is a high-frequency stripe period, if an equation that A=[T1 / T2] is satisfied, it is indicated that the greatest integer of the [T1 / T2] is obtained through floor operation, wherein T2 is the integer multiple of C1, wherein C1 is the multiple of a set range to the low-frequency period T1; the projection fringes are projected onto the surface of a measured object; a wrapping phase is solved through four-step phase-shift solution; and an absolute phase is obtained through a determined mathematical relationship, and unwrapping is realized. With the dual-frequency phase-shift three-dimensional measurement method and system provided by the invention adopted, tolerance can be expanded, and the problem of misjudgment on the serial numbers of fringes can be solved.

An electrostatic discharge protection element and a protection resistor, which are formed on an N-drain region with a field oxide film interposed therebetween for the purpose of preventing electrical breakdown of a field effect transistor, are composed as a stacked bidirectional Zener diode of one or a plurality of N+ polycrystalline silicon regions of a first layer and a P+ polycrystalline silicon region of a second layer, and a stacked resistor of one or a plurality of N+ resistor layers of the first layer and an N+ resistor layer of the second layer, respectively. One end of the plurality of N+ polycrystalline silicon regions of the first layer is connected to an external gate electrode terminal, and the other end is connected to a source electrode. One end of the plurality of N+ resistor layers of the first layer is connected to a gate electrode, and the other end is connected to the external gate electrode terminal. Semiconductor regions of the first layer and the second layer are formed by using semiconductor films, which form a hetero semiconductor region and the gate electrode, respectively.