34results about How to "Large manufacturing tolerance" patented technology

A polyaxial bone anchoring device includes an anchoring element having a shaft and a head, a receiving part having a first end and a second end, a bore extending from the first end towards the second end, a seat for receiving the head, and at least one threaded through hole transverse to the bore, a pressure element to exert pressure onto the head, such that the head is pivotable and can be locked at an angle relative to the receiving part, the pressure element having at least one hole configured to at least partially align with the through hole, and at least one set screw threadable into the through hole to engage the pressure element at the hole such that a force is exerted by the pressure element onto the head that maintains the head at an adjustable angular position relative to the receiving part by friction.

Coupling assemblies for releasably holding separable parts together, and in particular for releasably securing a wear member to a support structure in excavating equipment are formed so as to provide increased take up to ensure a tight fit of the wear member on the support structure even if considerable deviation between the parts exists due to wearing, manufacturing variations or the like. The coupling assemblies are suitable for securing points, adapters, shrouds, or other replaceable component to various excavating equipment. The components of the coupling assembly include a wedge and a spool that pivots about a fulcrum when the wedge is driven into assembly for increased take up capabilities. The spool is rotatably engaged around a fulcrum of the support structure and has a bearing portion that bears against and moves the wear member to be secured to thereby take up any gaps between the engaging surfaces of these members. A movable insert may be provided to improve the cooperation between the wedge and the spool to further increase the available take up.

A small footprint dipole antenna of the invention for WLAN applications is designed for full natural resonance in a single band, e.g., the 2.4 GHz band, and uses a matching network to for artificial resonance at a second band, e.g., the 5 GHz band. The natural impedance of the dipole in second band is set in a range that produces an efficient antenna with substantial range in both of the first and second bands.

The invention pertains to an apparatus to measure a tensile force within at least one material web or at least one material strand or a corresponding force (F_M) that is exerted on the apparatus, or a transmitted force (F_Ü) resulting therefrom. The apparatus comprises at least one roller barrel (1), at least one bearing (2) to rotatably mount the roller barrel (1), at least one first force transfer element (3) to transfer the transmitted force (F_Ü), said element designed to react to this transmitted force (F_Ü) with an elongation, compression or other shape change in a direction parallel to the axis of rotation (A) of the at least one roller barrel (1), and at least one sensor (7) that is connected to the at least one first force transfer element (1). According to one aspect of the invention, the apparatus further comprises at least one second force transfer element (4) that extends inside the associated roller barrel (1) and that is connected to the first force transfer element (3). Through this design, an improved absorption of force is facilitated as well as a force measurement apparatus of minimal width (B).

The stator of an electric rotating machine includes a stator core constituted of a plurality of core pieces joined to one another in a ring, a plurality of phase windings wound around the stator core, the stator core and the phase windings constituting a core assembly body, and an outer casing into which the core assembly body is fitted. Gaps are provided between an outer periphery of the core assembly body and an inner periphery of the outer casing.

A transmission includes a housing, an electric motor having a stator within the housing, and a member including a generally cylindrical portion that circumscribes at least part of the stator. The member cooperates with the housing to form an annular coolant flowpath therebetween, and the member includes a plurality of holes to provide radial inflow of coolant from the flowpath to the stator to provide significantly improved motor cooling compared to the prior art.

The invention relates to an optical element for the field of optical fiber sensing or optical fiber communication, in particular to a multifunctional integrated optical modulator for integrating a coupler of an inclined passing arm in a single Y-shaped waveguide as well as a production method of the modulator. The multifunctional integrated optical modulator comprises a crystal substrate, a Y-shaped waveguide, an inclined passing arm waveguide and a waveguide electrode, wherein the Y-shaped waveguide and the inclined passing arm waveguide form an integrated coupler with a special structure. With the structure, the multifunctional integrated optical modulator can solve the problems of not high signal-noise ratio and extra 3dB which is 50 percent of light wave loss, wide wavelength band and the like in the prior art. In addition, the invention has the advantages of insensitive temperature, wide wavelength band, larger tolerance of production process and the like.

A connection member for a fluid line (2) defining a fluid duct (5) with stranded signal conductors (7a and 7b) in the wall (4) thereof for the transmission of electrical signals. The connection member has a female socket into which the fluid line (2) may be inserted and in which at least one signal contact (26a and 26b) is arranged, which at the end may stick into the at least one signal conductor (7a and 7b). The penetrating part (27) is constituted by a knife edge (27a) whose width is equal to the diameter of the signal conductor (7a and 7b) to be contacted and which splits the signal conductor 7a and 7b) on penetration from the end into an outer and an inner line limb.

A test element is disclosed for analyzing a human or animal body fluid sample. The test element includes a substrate carrying a test field with a reagent for effecting a detection reaction when exposed to the body fluid sample, and an optical data storage in which data regarding the test element, preferably calibration data, is stored. Accordingly, the data storage is a holographic data storage. A hologram reader also is disclosed for reading the data storage of such a test element. Moreover, a hologram label and a method for manufacturing a hologram label are disclosed, as is a medical product including a holographic data storage in which data regarding the product is stored.

A sensor objective at the exit of a measuring branch of a measuring probe of an interferometric measuring unit for detecting the shape, roughness or distance of the surface of a measured object, the interferometric measuring unit including a modulation interferometer and the measuring probe being optically connected to the modulation interferometer via an optical fiber system and the sensor objective having a focusing element and a downstream deflection element for coupling out and coupling back in a measuring beam directed toward the surface to be measured and reflected from the latter. The deflection element includes at least two optical components, each having a shared interface, the deflection angle of the at least one beam deflected to a system longitudinal axis being settable by mutual displacement and/or rotation of the optical components during mounting. The mutual displacement and/or rotation of the optical components is/are performed at the shared interface(s). Therefore, arbitrary deflection angles for the beam may be set using a small number of optical components which are tailored to one another. Because no components have to be manufactured for specific customers, there is a significant reduction in manufacturing costs as well as significantly shortened manufacturing and therefore delivery times. Because the interfaces of the optical components are joined to one another without a wedge-shaped gap during the gluing of the components after adjustment, the disadvantageous influence of non-reproducible adhesive shrinkage is eliminated.

Control equipment for generating a rotational travel motion from a rotational drive motion includes a drive shaft, an intermediate body, a reference body, and an output body that are movable relative to each other. The control equipment includes a first transmission and a second transmission, which is different from the first transmission. The first transmission transforms a rotational movement of the drive shaft relative to the reference body into a linear motion component of the intermediate body relative to the reference body, and the control equipment has a displacement line along which the intermediate body moves via the linear motion component of the intermediate body relative to the reference body. The second transmission transforms the linear motion component of the intermediate body relative into a rotational movement of the output body relative to the reference body.

A modular battery pack and method of making a battery pack. Prismatic can battery cells are interspersed with cooling frames along a stacking axis within a housing such that numerous a cell-frame assemblies, each with a cooling path, are formed. Resiliently-biased sealing members on the frames are arranged such that they remain out of the way of a footprint defined by the joined cells and frames to promote ease of high-speed cell-to-frame assembly. Upon formation of the cell-frame assembly and subsequent placement into the housing with inner walls that press against the protruding ends of the sealing member, the sealing member is forced by the housing to come into contact engagement with a corresponding surface of the edge of the battery cell. The generally linear, planar contact surface formed by the contact engagement promotes the formation of a sealing surface that makes it harder for introduced cooling air to escape. By this sealing member construction, cell-frame assemblies may be produced with high-speed automated assembly techniques that may have both large manufacturing tolerances prior to assembly and substantially gap-free cell-to-cooling frame contacting surfaces after assembly.

The invention concerns a method for mounting a drive shaft (19) of a compressor, particularly a hermetical refrigerant compressor, which has a motor with a stator (1) and a rotor (23), connected with the drive shaft (19) and located in a rotor opening (4) of the stator (1), a first bearing support (8) and a second bearing support (29) being connected with the stator (1), a first bearing (15) for the drive shaft (19) being mounted in the first bearing support (8) and a second bearing (28) for the drive shaft (19) being mounted in the second bearing support (29). It is endeavoured to provide a method for mounting a drive shaft, in which the use of components with relatively large manufacturing tolerances will still result in a good alignment of the drive shaft in relation to the stator. For this purpose, at least the first bearing support (8) is provided with a positioning stop for the first bearing (15) after mounting the first bearing support (8) on the stator (1).

A multibeam-inductive-output-tube amplifier comprises an output cavity and a plurality of electron guns each intended to emit an electron beam through the output cavity, each electron gun comprising a cathode intended to emit the electron beam and a gate allowing the density of the electron beam to be modulated. The amplifier comprises, associated with each gun, a DC voltage supply, each of the supplies connected to the gate of the corresponding electron gun so as to bias the gate. The voltage of at least one of the supplies is adjustable so as to balance the density of the various electron beams.

A packaging concept for MEMS components having at least one diaphragm structure formed in the front side of the component is provided, according to which the MEMS component is mounted on a support which at least laterally delimits a cavity adjoining the diaphragm structure. In addition, at least one electrical feedthrough is formed in the support which allows electrical contacting of the MEMS component through the support. To achieve the largest possible rear volume for the diaphragm structure of the MEMS component for a given chip surface area, and also to simplify the processing of the support, according to the invention the electrical feedthroughs are integrated into the wall of the cavity adjoining the diaphragm structure, in that at least one section of such a feedthrough is implemented in the form of an electrically conductive coating of a side wall section of the cavity.

Driver circuit for driving a useful signal having: (a) at least one amplifier circuit (3a, 3b) with low output impedance for the signal amplification of the useful signal; (b) a protection impedance (9a, 9b) respectively connected downstream of the amplifier circuit (3a, 3b) and serving to protect the amplifier circuit (3a, 3b); characterized in that (c) provision is respectively made of a feedback circuit (14a, 14b) for the frequency-dependent signal feedback of the useful signal amplified by the amplifier circuit (3a, 3b).