Abstract: An optical device including a whispering gallery mode (WGM) optical resonator configured to support one or more whispering gallery modes; and a photodetector optically coupled to an exterior surface of the optical resonator to receive evanescent light from the optical resonator to detect light inside the optical resonator.

Abstract: A pulsed-laser beam detector with improved sun and temperature compensation. The detector includes a plurality of photo detectors, an ambient temperature sensor, a sun exposure filter and a mirroring circuit, a microcontroller unit that includes pre-stored values in a database and an algorithm—decision logic, a time base circuit that feeds microcontroller, an adjustable gain amplifier, a threshold setting circuit, a peak detector circuit, a comparator circuit, and a noise cancellation circuit. The gain of the amplifier is adjustable in real time to predetermined values, and the gain depends on the measured values from the detectors, and temperature sensor, that are preprocessed if necessary, and compared with the values already stored in the microcontroller unit and subjected to the program logic stored in the microcontroller that determines the gain of the amplifier.

Abstract: The present invention relates to a method and a device for calibrating an irradiation device of an apparatus for generatively manufacturing a three-dimensional object. The calibration includes steps of arranging an image converter plate (12) in or in parallel to a working plane of the apparatus, wherein the image converter plate (12) outputs detectable light (13), when the irradiation device irradiates predetermined positions of the image converter plate (12) with energetic radiation; of scanning the image converter plate (12) by the irradiation device; of detecting the detectable light (13) by a light detector (15); of determining coordinates of the irradiation device, when the detected light (13) is detected; of comparing the determined coordinates with predetermined reference coordinates; and of calibrating the irradiation device on the basis of a deviation between the determined coordinates and the reference coordinates.

Abstract: Ion implanters are especially suited to meet process dose and energy demands associated with fabricating photovoltaic devices by ion implantation followed by cleaving.

Abstract: Vapors of relatively heavy species having molecular weights in excess of 290 amu have not been previously detected in the gas phase at ambient temperature. A method to detect them is taught here based on the use of a mass spectrometer with an atmospheric pressure source. Ions produced in detectable quantities from such heavy vapors are claimed as a new state of matter.

Abstract: There is disclosed a method for direct quantitation of total carbon and 14C/12C ratios in a single measurement using Accelerator Mass Spectrometry (AMS). More specifically, measurement of both total carbon and 14C/12C ratio is performed in the same sample at the same time. The disclosed method provides improved sensitivity and accuracy for reliably calculating 14C-labeled compound concentrations in biological samples. There is also a reduction in measurement time, sample volume requirement and measurement cost compared to existing procedures.

Abstract: A FAIMS device for separating ions has a pair of electrodes for providing a compensation voltage and an asymmetric waveform that are separated and insulated where at least one porous spacer reside in the proximity of the analyzer region of the FAIMS cell. The porous spacers allow a focusing gas to flow into the analyzer region to provide pneumatic focusing of the ions traversing the analyzer region to improve the ion transmission.

Abstract: In a conventional mass spectrometer in which a pipe to be electrically heated is provided between a separation wall separating an ionization chamber for ionizing a sample and a separation wall separating an analysis chamber, and an ion in the ionization chamber is introduced through the pipe to the analysis chamber, the pipe is attached or detached by screwing or unscrewing a connector portion of an electrode connected to the pipe and a connector portion of a support disposed at the separation wall. However, with this structure, the screw needs to be loosened until it is completely unscrewed every time it is washed or exchanged, and thus the operability is deteriorated. According to the present invention, a screw hole for screwing the electrode connector portion is in the form of a cut-out portion facing in the direction of rotation centering on an axis of the pipe. Accordingly, the pipe can be attached or detached by only loosening the screw without completely unscrewing it.

Abstract: An EDL includes a case surface and at least one electrode surface. The EDL is configured to receive through the EDL a plurality of ion beams, to generate an electrostatic field between the one electrode surface and either the case surface or another electrode surface, and to increase the separation between the beams using the field. Other than an optional mid-plane intended to contain trajectories of the beams, the electrode surface or surfaces do not exhibit a plane of symmetry through which any beam received through the EDL must pass. In addition or in the alternative, the one electrode surface and either the case surface or the other electrode surface have geometries configured to shape the field to exhibit a less abrupt entrance and/or exit field transition in comparison to another electrostatic field shaped by two nested, one-quarter section, right cylindrical electrode surfaces with a constant gap width.

Abstract: A method for estimation of a probe shape, in a scanning electron microscope provided with an aberration corrector, and the method is designed so as to obtain a probe image, by inputting to a computer an image taken in a just-focused state and an image taken in a de-focused state, as an image data; preparing a correlation window by automatically determining a size of a correlation window image, based on an input data size and an output data size; executing cross-correlation calculation between the correlation window and a reference area; and repeating this calculation while shifting the reference area, so as to obtain a cross-correlation matrix, in order to stably obtain the probe image, without receiving effects of use conditions or noises.

Abstract: An optical device for viewing an image is provided. The optical device includes two optical channels, each optical channel including an image detector assembly and a complimentary objective lens assembly spaced by a respective distance from the image detector assembly. A focus mechanism is either directly or indirectly coupled to both image detector assemblies. The focus mechanism includes two threaded segments having an unequal thread pitch. Each image detector assembly includes a mating threaded segment that is threadedly coupled to a respective threaded segment of the focus mechanism such that rotation of the focus mechanism causes translation of both image detector assemblies at unequal rates by virtue of the unequal thread pitch of the threaded segments of the focus mechanism.

Abstract: In a device for the detection of thermal radiation which and a method for production of such a device, a stack is formed with at least one detector support having at least one detector element for the conversion of the thermal radiation into an electric signal, at least one circuit support with at least one read-out circuit for reading out the electrical signal and at least one cover to shield the detector element, wherein the detector support and the cover are so arranged with respect to one another that a first stack cavity bounded by the detector support and the cover is provided between the detector element of the detector support and the cover and that the circuit support and the detector support are so arranged with respect to one another that at least one second stack cavity bounded by the circuit support and the detector support is provided between detector support and the circuit support and that the first hollow stack support and/or the second stack cavity is evacuated or can be evacuated.

Abstract: A system includes a solid state source of THz radiation and a detector. The source of THz radiation may be based on a superconducting material, such as materials containing one or more Josephson junctions (e.g. BSCCO). The source may include a crystal of superconducting material on which a mesa of superconducting material is formed. The resonant coupling between the Josephson oscillations and the fundamental cavity mode of the mesa may lead to synchronization of the Josephson junctions and emission of powerful THz radiation. The mesa may be formed and/or handled such that THz radiation can be emitted by the material without requiring application of an external magnetic field (e.g. the mesa may include a non-uniform compositional gradient, a non-uniform shape, may have radiation non-uniformly applied to the mesa, etc.).

Abstract: Disclosed are lighting techniques, including systems, apparatus, and methods, that employ optical transmission of two-dimensional control signals to manipulate lighting elements. The lighting apparatus can include a projector with an IR LED array to wirelessly transmit pixel information onto a target space. The pixel information controls lighting elements within the target space. The two-dimensional control signals can includes subareas corresponding to lighting elements in a control array. The lighting elements can be lights of desired wavelengths including infrared and/or visible wavelengths. LEDs can be used as light sources in exemplary embodiments.

Abstract: Disclosed are lighting techniques, including systems, apparatus, and methods, that employ optical transmission of two-dimensional control signals to manipulate lighting elements. The lighting apparatus can include a projector with an IR LED array to wirelessly transmit pixel information onto a target space. The pixel information controls lighting elements within the target space. The two-dimensional control signals can includes subareas corresponding to lighting elements in a control array. The lighting elements can be lights of desired wavelengths including infrared and/or visible wavelengths. LEDs can be used as light sources in exemplary embodiments.

Abstract: This invention provides a hydrocarbon concentration measuring apparatus, which, even when the concentration and composition of hydrocarbons contained in an object gas to be measured vary, can measure the concentration of the hydrocarbons with good response and good accuracy, and a hydrocarbon measuring method. Light with a waveband including a common absorption region, which is absorbed by a single or a plurality of chemical species, is applied to the object gas by an infrared irradiation equipment. The light applied to the object gas is detected with a line sensor. The absorbance in the common absorption region of the object gas is computed with an analyzer based on the detected light. The sum of concentrations of chemical species, which absorb light in the waveband in the common absorption region, in the single or plurality of chemical species contained in the object gas, is computed with the analyzer based on the absorbance.

Abstract: An apparatus comprising a mirror array having a plurality of mirrors and a control system. The plurality of mirrors is capable of receiving a signal for an image. The control system is capable of controlling a first portion of the plurality of mirrors in the mirror array to direct a first portion of the signal to a detector. The control system is also capable of controlling a second portion of the plurality of mirrors in the mirror array to direct a second portion of the signal away from the detector.

Abstract: A monitor part performs monitoring by detecting contamination on a lower surface of an article to be inspected based on a lower surface detection signal, detecting contamination on an upper surface of the article based on an upper surface detection signal, detecting contamination on a front surface of the article based on a front, lower surface detection signal and a front, upper surface detection signal, detecting contamination on a rear surface of the article based on a rear, lower surface detection signal and a rear, upper surface detection signal, detecting contamination on a left surface of the article based on a left, lower surface detection signal and a left, upper surface detection signal, and detecting contamination on a right surface of the article based on a right, lower surface detection signal and a right, upper surface detection signal.

Abstract: The present invention describes scintillator-elements for use in X-ray detectors, the elements being shaped to ensure maximum absorption of the energy carried in by X-ray photons and to provide high position-resolution. Arrangements of such scintillator-elements in arrays and detector-systems comprising a plurality of arrays are described.

Abstract: A radiation detection apparatus that utilizes a radiation sensor device that includes a scintillator device that is optically coupled to a plurality of silicon drift detector devices. Each silicon drift detector device segment includes an output anode that supplies the segment output to dedicated sensor processing circuitry. With each anode having dedicated processing circuitry, each output can be processed simultaneously. Also provided is a spectroscopic analysis device that is coupled with the sensor processing circuitry for computing spectral data associated with the radiation detection event. The spectroscopic analysis device accurately characterizes the detected radionuclide and prepares the results for display before the user. Networking capabilities also allow multiples of such apparatuses to communicate in an intelligent grid, providing even greater radionuclide characterization capabilities.

Abstract: In a case that a gamma ray has entered into a plurality of scintillators adjacent to each other simultaneously, a detector detects the gamma ray having entered simultaneously. A position calculator calculates the ratio of wave heights representing the energies of the detected gamma ray. The position calculator obtains a trajectory of such a gamma ray that a ratio of distances passed by the gamma ray inside the plurality of scintillators, respectively, coincides with the ratio of the wave heights. The position calculator obtains an intersection between the boundary of the plurality of scintillators and the trajectory, as a passing position of the gamma ray. A reconstructing part executes a back projection process with the trajectory passing through the calculated passing position as a projection position.

Abstract: It is provided a capacitive type proximity sensor, comprising a sensing electrode, whereas the sensing electrode has a surface with electroconductive areas 113 and not-electroconductive areas 117, whereas the sensor is adapted for measuring an electrical field 110, 112 between the sensing electrode and an object 109, 111. Further it is described an apparatus for medical x-ray diagnosis and/or x-ray therapy and/or nuclear diagnosis/therapy, e.g. SPECT, a system for medical x-ray diagnosis and/or x-ray therapy and/or nuclear diagnosis/therapy, e.g. SPECT, a method for avoiding collision between an apparatus for medical x-ray diagnosis and/or x-ray therapy and/or nuclear diagnosis/therapy, e.g. SPECT, and an object, a programme element and a computer readable medium. It is disclosed a capacitance type proximity sensor whose sensitivity of approaching objects has an improved independence from the special geometry of the sensor itself.

Abstract: A radiation-sensitive detector includes a photosensor elements (122) and a scintillator (116) optically coupled to the photosensor element (122). The scintillator (116) includes a powdered scintillator and a resin mixed with the powdered scintillator. The refractive index mismatch between the powdered scintillator and the resin is less than 7%. In one non-limiting instance, the composite scintillator material may be used to form fiber optic leaves arranged as a high-resolution detector array in conventional or spectral CT.

Abstract: A solid state radiation detector comprises a substrate having a sensing element thereon and at least one heavy metal plug formed in at least one insulation layer above the substrate. The at least one heavy metal plug is located directly above the sensing element and is electrically isolated from the sensing element. The at least one heavy metal plug reacts with a plurality of initial radiation particles to produce a plurality of secondary particles, the plurality of secondary particles having a lower level of energy than the plurality of initial radiation particles; wherein the number of secondary particles produced is greater than the number of initial radiation particles with which the at least one heavy metal plug reacts; and wherein the sensing element is operable to produce an electrical signal in reaction to the secondary particles.

Abstract: The invention relates to a radiation detector (3) comprising a detector array (5) having a periodical pattern of detector elements (51). Each detector element (51) comprises a sensor element (53) for converting incident radiation into an electrical charge. The sensor elements (53) are spaced at a sensor-center-to-center distance. Over the detector array (5) an imaging radiation-collimating structure (7) is disposed. The imaging radiation-collimating structure has a periodical pattern of radiation absorbing elements, which radiation absorbing elements are being spaced at a collimator center-to-center distance. The radiation detector (3) comprises a combiner for generating combiner-signals from the electrical charges of the sensor elements (53) of groups of an even number of sensor elements adjacent in a direction of the periodicity of the pattern of the radiation absorbing elements.

Abstract: A detector for electromagnetic radiation such as millimeter wave and infrared employs a ring-shaped ferroelectric element having a temperature affected by an absorber for the radiation. The dielectric constant of the ferroelectric material is a strong function of the temperature near its Curie temperature. The resonant frequency of the ferroelectric element is detected by applying a swept-frequency signal to the circuit and detecting the frequency which enhances the energy of the pulse. A two-dimensional camera for the radiation employs a two-dimensional array of these ferroelectric resonant circuits and a system for rapidly interrogating their resonant frequencies on a sequential basis.

Abstract: A system and method for measurement of radioactivity concentration of a radiopharmaceutical are disclosed. The radiopharmaceutical may be a radioactive tracer solution including a tracer solution and a buffer solution. The system may include a vial that receives the tracer solution and the buffer solution; a scale; a radioactivity measuring device; and a controller that determines the radioactive concentration based on a measured radioactivity of the tracer solution and the buffer solution in the vial, and a weight of the tracer solution and the buffer solution in the vial. The method may include the steps of (1) transferring the tracer solution into a vial; (2) measuring a radioactivity of the tracer solution in the vial; (3) determining a weight necessary to achieve a desired radioactivity concentration; and (4) diluting the tracer solution in the vial to the determined weight with a buffer solution.

Abstract: An arrangement for expanding the particle energy distribution of a particle beam is provided. The arrangement includes at least two ripple filters, which are arranged in series such that one ripple filter is behind another ripple filter in a radiation direction.

Abstract: An ion source, capable of generating high-density wide ribbon ion beam, utilizing one or more plasma sources is disclosed. In addition to the plasma source(s), the ion source also includes a diffusion chamber. The diffusion chamber has an extraction aperture oriented along the same axis as the dielectric cylinder of the plasma source. In one embodiment, dual plasma sources, located on opposing ends of the diffusion chamber are used to create a more uniform extracted ion beam. In a further embodiment, a multicusp magnetic field is used to further improve the uniformity of the extracted ion beam.

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: An apparatus capable of improving image quality by making it possible to suck specimens of different sizes electrostatically, and uniformalizing an electric field of a specimen edge portion, while suppressing increase in prime cost is provided. Specimen holding means is an electrostatic chuck, a master flat plane part surrounding a specimen of the largest size of specimen sizes, and an opening surrounding a specimen size except for the largest specimen size are included at an outer peripheral portion of the electrostatic chuck, a dummy specimen attachable to and detachable from the electrostatic chuck is included, and at a time of switching the specimen size, a dummy specimen is selected (or may be prevented from being used).

Abstract: The invention relates to a method for determining the amount of nucleic acid present in a sample, wherein:—a fluorophore is added to the sample,—fluorescence intensities emitted by the fluorophore at least two emission wavelengths in response to light stimulations at least two excitation wavelengths respectively are measured, and—the amount of nucleic acid present in the sample is deduced from the measured fluorescence intensities.

Abstract: A method for the detection or determination of a target comprising a plurality of target compounds, or derivatised target compounds, said method comprising: immobilising said target on a carrier, directing radiation at said target, said radiation being selected to cause said target to emit a relevant radiation, detecting said relevant radiation emitted by said target, and analysing said detected radiation to identify and/or quantify the plurality of target compounds in said target.

Abstract: The present invention relates to a gas sensing device comprising a nanoparticle layer (1) and a quantum dot layer (3) separated from each other by a gas absorption layer (2) which has a thickness which changes upon absorption of a gas. The nanoparticle layer (1) is provided for generating a surface plasmon resonance within a plasmon resonance frequency range upon illumination with light within a light frequency range; the quantum dot layer (3) has an absorption spectrum overlapping with said plasmon resonance frequency range of said nanoparticle layer (1) and shows photoluminescence in a photoluminescence emission frequency range upon absorption of energy within its absorption spectrum. The present invention further relates to a method for fabricating such a gas sensing device and to a method of using such a gas sensing device.

Abstract: An embodiment of the invention is a device for photo-stimulated color emission having at least one plurally doped semiconducting nanoparticle comprising at least one semiconducting material and a plurality of at least one dopant coupled with an irradiation source such that the plurally doped semiconducting nanoparticle emit electromagnetic radiation at two or more wavelengths where the intensities of the emissions depend on the intensity of the irradiation. In an embodiment of the invention, the plurally doped semiconducting nanoparticle can be a doped core/shell nanoparticle where the plurality of dopants can reside in exclusively the core, exclusively the shell, or in both the core and shell.

Abstract: A method of producing an array of islands (12) on concentric tracks (13) on a rotating substrate by selective exposure of an electron-sensitive surface of the substrate to an electron beam comprises directing the beam onto a point (A) on the surface within a zone of action of the beam and deflecting the beam in the sense (31) of substrate rotation to remain on the point until the point (A?) has received an electron dose from the beam. The beam is then redirected onto a further point (B or T) at a spacing from the preceding point (A?) and dosed by the beam in similar manner. The redirection and deflection procedure is repeated for at least one substrate revolution, preferably several revolutions, so that points are dosed along at least one of the tracks (13a), preferably several of the tracks (13a to 13j).

Abstract: The present invention relates to a gas discharge source, for generating EUV radiation and/or soft X-radiation, comprising at least two electrode bodies (110,120), of which a first electrode body (110) comprises a rotatably mounted electrode disk (100). The source further comprises a rotary drive (130) for the electrode disk, a device for applying a liquid film of a target material (140) onto a radial outer surface of the electrode disk (100), and a laser that is focussed, within a discharge area (240), onto the radial outer surface of the electrode disk (100) to evaporate target material. The source is characterized by an intermediate space (160) is formed between the electrode bodies, which intermediate space has a reduced width of <5 mm outside the discharge area (240), which is smaller than the intermediate space in the discharge area. The source enables the generated radiation to be emitted in a simple manner through a larger solid angle, without being shadowed by the electrodes.

Abstract: A detector apparatus and method for detecting radiation emitted from a target comprising: a first transmissive polariser (302) for polarising radiation incident on the target; a second transmissive polariser (304) for polarising the radiation emitted from the target (303) and absorbing any remaining light polarised by the first polariser; and at least one reflective polariser (306) arranged between the first and second transmissive polarisers.

Abstract: A method of inspecting an imprinted substrate on a printing press comprises illuminating a portion of the substrate which has been imprinted with different colors at a plurality of printing units of the printing press. The method further comprises sensing light reflected by the substrate using a contact image sensor to produce data representative of the imprinted substrate, and comparing the data representative of the printed substrate with stored reference data.

Abstract: A driving mechanism (100) includes a first rotor (10) that rotates around a first shaft L1 and a second rotor (20) that rotates around a second shaft L2 that is provided in parallel with the first shaft L1. The first rotor (10) includes a guide (13) that extends in a circular arc around the first shaft L1 and a drive pin (14) that is provided outside the guide (13) relative to the first shaft L1. The second rotor (20) includes a first member (40) with a plurality of leads (41) that extend in the radial direction from the second shaft L2 and a second member (50) that is provided between the first rotor (10) and the first member (40), that moves together with the first member (40), and that includes a plurality of first surfaces (51) with substantially the same curvature as a circular arc-shaped outer surface (13b) of the guide (13).

Abstract: The invention relates to a solenoid valve having a magnet assembly and a valve cartridge comprising a capsule, a valve insert connected to the capsule, an armature that is movably disposed within the capsule. The armature includes a tappet having a locking element and a main sealing element, and a valve body having a main valve seat pressed into the valve insert. A magnetic force generated by the magnet assembly axially moves the armature against the force of a return spring and plunges the main sealing element into the main valve seat in a sealing manner. According to the invention, the valve body is configured as a bonnet-shaped bushing, the open end of which is pressed into the valve insert, and acts as a spring support for the return spring, which is disposed outside of a fluid flow, which is present between the opened main valve seat and at least one radial downstream opening in the valve body configured as a bonnet-shaped bushing.

Abstract: The invention relates to a valve cartridge for a solenoid valve having a capsule, a magnetic armature that is movably guided within the capsule, a valve insert inserted into the capsule at a first end, and a valve body, which is pressed into a second end of the valve insert, and having a main valve seat. The magnetic armature, moved by a generated magnetic force, moves a tappet that is guided within the valve insert. The tappet has a locking element which includes a sealing element which plunges into the main valve seat of the valve body in a sealing manner for carrying out a sealing function, and an associated solenoid valve. According to the invention, the valve insert is configured as a slotted bushing, having a collar integrated onto the second end of the valve insert in order to increase an outer diameter and a shape stability of the valve insert.

Abstract: The invention relates to a valve cartridge for a solenoid valve, having a capsule, a magnetic armature that is movably guided within the capsule, a valve insert that is inserted into the capsule at a first end, and a valve body, which is pressed into a second end of the valve insert and has a main valve seat. The magnetic armature, moved by a generated magnetic force, moves a tappet guided within the valve insert. The tappet has a closing element with a sealing element which plunges into the main valve seat of the valve body in a sealing manner for carrying out a sealing function, and an associated solenoid valve. According to the invention the valve insert is configured as a one-part slotted bushing, and the valve body is configured as a bonnet-shaped bushing. The valve body configured as a bushing is pressed into a second end of the valve insert configured as a slotted bushing such that the main valve seat is disposed within the valve insert.

Abstract: A combined connector and valve, for example, for connection of an air line to a source of compressed air or to a vacuum source (all for use in an hydraulic fluid line) the connector comprising a one piece housing (112) a spring-loaded valve member (130) located in a bore (118) in the housing. The valve member (130) is removably retained in the bore by means of a threadedly engaged cap (134). A standard spring-loaded sleeve (140) is slidably located on the open end of the housing (112) to provide a means of connection, and a standard ribbed stem (114) may receive a hose at the remote end.

Abstract: A gas appliance including a frame and a control knob assembly connected to the frame, the control knob assembly including a gas valve with a valve stem, a control knob attached to the valve stem, and a valve restraint. The valve restraint is substantially fixed relative to the frame and longitudinally disposed substantially between the gas valve and control knob, and is configured to limit lateral movement of the valve stem.

Abstract: A water, sewer, and gas or electric conservation device for use with a showerhead includes a body portion including an inlet, an outlet, an inner surface, and an outer surface. The outer surface adjacent the outlet is threaded and configured to mate with an additional shower component. The inner surface adjacent the inlet is threaded for mating with a water source pipe. A valve element is disposed within the body portion. It includes a port and is pivotable within the body portion between an open position and a closed position. The open position places the inlet and outlet in fluid communication through the valve element and the closed position restricts fluid communication between the inlet and outlet. A pivot axle connects to the valve element and extends from the inner surface of the body to the outer surface. A lever includes a first distal end portion and a first proximal end portion. The first distal end portion rigidly connects to and extends from the axle.

Abstract: A rotationally actuated flapper valve including a flapper; a sinuous edge perimetrically about the flapper; and a congruous sinuous edge disposed at another component of the valve, the component being rotatable to misalign the congruous sinuous edge with the sinuous edge of the flapper whereby the flapper is urged out of a closed position and method.

Abstract: A wafer-style valve assembly adapted to be coupled between opposing pipeline components having a common centerline secured together by a plurality of longitudinal fasteners includes a substantially cylindrical valve body, a seat retaining plate, and at least one clip. The valve body has a peripheral edge portion and an axial end surface. The seat retaining plate is disposed on the axial end surface. The at least one clip is also disposed on the axial end surface and extends radially outward of the peripheral edge portion. The clip has a radially inward portion and a radially outward portion. The radially inward portion secures the seat retaining plate to the to valve body. The radially outward portion has an edge defining a first recess and a second recess. The first and second recesses are each adapted to accommodate a longitudinal fastener to locate the valve assembly relative to the centerline of the pipeline.

Abstract: The present disclosure relates to a hydraulic control valve assembly with a dynamic bore plug assembly that flexibly dampens valve operation. The disclosure teaches various bore plug assemblies for control valve body that can include a dynamic plug configured to restrict fluid flow out of a control valve bore. The bore plug assemblies are configured to selectively alter compressibility in the control valve bore during operation.

Abstract: A double-disc gate valve is provided, the shut-off or valve discs of which are displaceable from an open position into a closed position and vice versa by means of an actuator rod, there being associated with the actuator rod a locking device by means of which the valve discs, together with the actuator rod, are fixable in the closed position. The locking device is movable in the longitudinal direction of the actuator rod relative thereto from an unlocking position into a locking position and vice versa, the locking position being variable in dependence upon the closed position of the valve with predetermined maximum pressing force of the valve discs against the associated valve housing sealing seats.