Abstract: A heat exchanger (10) comprises an alternating stacking of first plates (12) and second plates (14) provided respectively with first corrugations (16) separated by a first pitch (P1) and second corrugations (18) separated by a second pitch (P2), which is different from the first pitch (P1). Between the plates, first flow channels are defined having a first cross sectional area adapted to a first fluid (F1) which alternate with second flow channels having a second cross sectional area adapted to a second fluid (F2). The invention applies in particular to heat exchangers for motor vehicles.

Abstract: A heat exchanger having a heat exchange surface comprising a plurality of tubes, a pair of tanks, an end plate, and a shroud disposed to cover the heat exchange surface, wherein, the shroud provides a first hook and a second hook at it's a vertical wall, and the end plate is held in place either between the first hook and the second hook, or between the second hook and the vertical wall. With the above structure, the fan shroud assembly can hold two types of heat exchangers having different thickness.

Abstract: A vehicle radiator may include a first header tank partitioned through a first barrier rib that is integrally formed at the inside to store a coolant to form a first chamber and a second chamber inside the first header tank, a second header tank disposed apart by a predetermined gap from the first header tank and partitioned through a second barrier rib that is integrally formed therein to correspond to the first barrier rib to form a third chamber and a fourth chamber, a plurality of first and second tubes that are mounted in a vertical direction at each separated position of each inside surface of the first header tank and the second header tank, heat diffusion fins, each of which are formed between the first tubes and the second tubes; and a condenser that is provided at the inside of the fourth chamber in the second header tank.

Abstract: A stub connection for a heat exchanger that is arranged in a housing. The stub connection includes a first part which is fastened to the heat exchanger and a second part which has a stub shank extending through an opening in the housing and is seated in a hole of the first part. The stub connection also includes at least two seals. The first seal is an annular seal, which is seated in a groove of the stub shank and the second seal is a gasket, which is arranged between the opening, the stub shank, and the first part. The first seal is seated in the hole and seals between the stub shank and the first part.

Abstract: An externally-operated weapon has a direct current servo motor that provides motive force to drive the weapon operating group at an average rate of fire. Within a single cycle, the weapon operating group is driven at rates greater than and less than the average rate of fire, while the overall rate for a single cycle is maintained at the average rate of fire. Some benefits of servo motor control include reduced power consumption, increased bolt dwell time, expansion of the weapon's battlefield role from one to many roles, and increased accuracy and shot-to-shot precision while firing from an open bolt position.

Abstract: A removable magazine for a rifle with a support and a magazine insert disposed on the support, the magazine insert having, in the direction of fire, a back side and a front side with an opening for bullets of cartridges insertable into the magazine insert. The magazine insert is mounted on the support so as to be able to pivot around a transverse axis by a pivot bearing disposed on the back side thereof.

Abstract: An ammunition magazine loader include a main body, a rounds recess, a rounds abutment, and a magazine recess. One or more rounds are provided to the rounds recess and positionally maintained by a rounds recess bottom and first and second rounds recess ledges. With a magazine positioned within the magazine recess and at least one round within the rounds recess, as the at least one round is slidably moved out of the rounds recess, the at least one round abuts the rounds abutment and pivots to orient the round such that each second case end is angled towards the magazine recess.

Abstract: A gun trigger-locking device which is configured to be manually installed on a gun with a trigger-blocking member disposed behind the trigger to prevent the gun from being fired. The device includes a data receiver, a data memory and a logic device for determining whether data received by the receiver is the same as data stored in the memory. If a data match is indicated, the logic device causes an electromagnetic device to move a locking member to an unlocked position, permitting the trigger-blocking member to be manually removed from the gun so the gun can be fired. A separate electronic key is provided to transmit unlock data to the data receiver of the trigger-locking device. This unlock data may be a password, a long pseudo-random number or biologic data identifying the gun owner or some other person who is licensed or otherwise authorized to fire the gun.

Abstract: A firearm trigger assembly is disclosed. The disclosed assembly may include a trigger, a disconnect, and a hammer, each of which may be configured to be spring loaded when installed in a firearm receiver. Installation of the trigger assembly in a firearm receiver may include pivotally coupling the trigger and disconnect to the firearm receiver using a trigger pivot pin, and pivotally coupling the hammer to the firearm receiver using a hammer pivot pin. The trigger may include an integral sear feature configured to provide a mechanical stop to the hammer. The disconnect may be configured to be at least partially located in a disconnect slot located alongside or adjacent to the trigger sear feature when the disconnect is pivotally coupled to the trigger. The disconnect and hammer may each include integral cam features configured to buffer hammer contact during firearm recoil.

Abstract: In general terms, this disclosure is directed to a trigger mechanism with a mode selector element that is placeable in a safety mode, a semi-automatic fire mode, and a momentary automatic fire mode. In one possible configuration and by non-limiting example, the mode selector element includes a selector block and a handle portion extending from the selector block to allow the selector block to be rotated between the different modes. The mode selector element is configured such that the selector block can be indexed into the safety mode and the fire mode. The mode selector element is additionally configured such that the selector mode is spring biased to automatically rotate from the momentary automatic fire mode to the fire mode when the handle portion is not constrained by a force, such as when an operator releases the handle portion.

Abstract: A weapon barrel assembly including Silicon Nitride, Aluminum Oxide and/or Silicon Carbide combined with graphene.

Abstract: A gun rest system includes a weighted substance and a rifle. A mount is provided and the rifle is positioned on the mount thereby facilitating the mount to restrain the rifle. The mount is substantially hollow such that a selected amount of the weighted substance is positionable within the mount. Thus, the mount absorbs recoil from the rifle when the rifle is fired.

Abstract: An apparatus for supporting a firearm having a forestock and a stock, the apparatus including at least two supports, each having an upper end portion and a lower end portion that is opposingly disposed from the upper end portion. A first and second support is configured to be removably attached at their respective upper end portion to the forestock and stock, respectively, of the firearm. Further disclosed is a base including at least one support receiver configured for removably engaging one of the first or second support at its lower end portion. Upon firing the firearm, recoil occurs without restriction as the removably engaged support disengages from the at least one support receiver and the firearm is returnable to the position prior to the firing of the firearm.

Abstract: A munitions disabling device is disposed in a storage container proximate the muzzle of a single-use weapon. A projectile having a fused warhead is loaded in the weapon prior to storing the weapon. If an unplanned stimulus launches the projectile while the weapon is in the storage container, the projectile will impact or strike the disabling device. The disabling device prevents detonation or explosion of the warhead.

Abstract: In one or more embodiments, a prod may include a rail-engagement portion configured to engage a rail extending along a longitudinal axis extending proximally from the rail-engagement portion; a peripheral surface including a foot-engagement region; and, optionally, a bow-engagement portion configured to engage a bow or a bow limb. In one or more embodiments, prod or crossbow accessory engages a crossbow, wherein the prod or crossbow accessory includes a first foot-engagement region and a second foot-engagement region.

Abstract: A handheld archery release includes a handle and a first finger piece which is removably and adjustably connected with the handle to provide radial adjustment of the release. Preferably, a second finger piece is removably and adjustably connected with the first finger piece. Adjusting the finger pieces forward creates a flatter hand feel and provides a faster back-tension speed for shot execution. Adjusting the finger pieces rearward or backward creates a larger arcuate shape for a more swept hand feel and a slower back-tension speed for shot execution.

Abstract: A innovative sliding valve used in paintball gun or other compressed gas propelled firearm, wherein a portion of the valve body where air is exhausted is reduced in size to allow pressurized air to exhaust more quietly around the valve body by feeding into the air exhaust apertures formed on an extended wall of valve body. Because the air pressure is balanced between two equal, or nearly equal, sized O-rings on a central spindle, the valve can be opened more smoothly and quietly, and with less opening force. Further, because the exhaust O-ring is contained with apertures and seals against the escaping air, with the resulting compression of the O-ring away from the sealing surface, the O-ring is held in place, and cutting and wear of the O-ring is substantially reduced.

Abstract: A gas powered gun comprising a valve arranged to exhaust compressed gas from a chamber to thereby discharge a projectile inside a barrel, and a hammer arranged to be cooperate with a valve opening arrangement to thereby open the valve. A spring is arranged between the hammer and a spring abutment for spring loading the hammer. The gun further comprises an adjustment knob turnable around an axis A of rotation, substantially perpendicular to the spring loading direction. The knob has a cam surface having a varying radial distance from the axis of rotation, and a follower, integrated with the spring abutment, is pressed by the spring to rest against the cam surface. When the adjustment knob is turned, the follower will slide against the cam surface and move the follower and the spring abutment in the spring loading direction, to thereby adjust a pretension of the spring.

Abstract: A system facilitates one handed manipulation of a service pistol and includes a device having two components and related inserts that allow for single handed loading, cycling, firing, clearing and unloading of semi-automatic pistols. The present device includes a spine; and a retainer attached to the spine wherein the retainer comprises at least a first groove tapering from a first width towards the pivotal attachment between the cover and spine to a second width towards the front edge of the cover.

Abstract: An arm is attached to a mounting body at a first attachment. The arm is configured and arranged to move between an open position and a closed position. The arm has a first surface that in combination with a second surface on the mounting body forms a cavity for holding a fixed blade knife in a locked position when the arm is attached to the mounting body at a second attachment.

Abstract: A kit for fitting a handwheel to a focussing control of a rifle scope is used to enlarge a focussing ring of the control, without having to remove the focussing ring from the control. The handwheel is secured by a headed bolt to a projecting stub shaft. The handwheel has a side plate supporting an outer rim that has a plurality of peripheral indentations to assist turning of the handwheel. The side plate has a central hole and a hub that projects axially from the side plate and defines a bore for receiving the stub shaft. The outer diameter of the hub is received within an outer end portion of the focussing ring. The hub has at least one abutment that co-operates with the stub shaft to inhibit relative rotational movement. A cap bolt extends through the hole to engage the stub shaft and secure the handwheel to the control.

Abstract: An apparatus, device, or method may detect aim or pointing direction of a firearm, and may display aim directions of the firearm for gunshots fired at a target. Sequence of bullet strikes by multiple gunshots may be determined. A method may comprise detecting gunshots of the firearm discharging live ammunition, measuring aim directions of the firearm substantially at times of detecting the gunshots, recording the times of the gunshots and/or sequence order of the gunshots, and generating output for displaying an image that includes bullet strike icons that represent bullet strikes on the target. Locations of the bullet strike icons in the image may be based, at least in part, on the measured aim directions of the gunshots.

Abstract: A rifle camera mount comprises a Picatinny rail, a flat shaped L bracket attached to the Picatinny rail, an angled L shaped bracket attached to the flat shaped L bracket, and a fastener to attach a camera to the angled L shaped bracket.

Abstract: An electronic conditioning device delivers electric shocks correlated with sounds or driven by a signal associated with a sound sequence. The sound sequence can be a few seconds of a recorded human voice, a siren, a single tone, and so forth. A sound generator emits the sound sequence audibly. A power supply is electrically connected to the various components and provides energy to a shock inducer or electrodes embedded in the skin of a target. The device administers voltage spikes and sounds in a coordinated fashion. The conditioning encourages the target to associate certain sounds with the electric shock. Power may be supplied by a battery, a piezoelectric flexible film or movable magnet that converts kinetic motion into electric energy. Preferably, the device is applied to a target by loading the device into a shotgun shell and firing the loaded shell at the target from a rifle, pistol or shotgun.

Abstract: A vibration damping nock for crossbow arrows includes an insert to absorb bow string slap, thereby to prevent damage to the nock during crossbow firing.

Abstract: A method of actuating a control surface in a munition. The method including: coupling a pair of fins to an actuation device; generating pressurized gas to selectively actuate the actuation device; and converting the actuation of the actuation device to rotation of the pair of fins. The converting can convert a linear output of the actuation device to the rotation of the pair of fins or a rotary output of the actuation device to the rotation of the pair of fins. The generated gas can be directly provided to the actuation device or the generated gas can be stored in a storage device before being provided to the actuation device. The method can further include repeating the coupling, generating and converting for a second pair of fins.

Abstract: A munition includes a projectile and a propellant unit. A propellant insert in the propellant unit has at least two propellant chambers each receiving a respective propellant charge. A primer mechanism is actuatable to ignite all of the propellant charges in the propellant insert. The combustion products of a selected one of the propellant charges are directed to the projectile and the combustion products of the non-selected propellant charges are vented.

Abstract: An ammunition cartridge for a gun is optically initiated by a mechanism wholly within the cartridge case itself. The case has as optical primer initiation means producing light fluence to ignite a primer, which ignited primer may in turn ignite into a flashtube, and which ignited flashtube may in turn ignite a bed of propellant in said cartridge. The optical primer initiation means may be an LED, a laser diode, a VCSEL, or some other light emitting device in general. The cartridge optically initiated primer package is so sized and made electrically and mechanically seamlessly physically compatible with current ammunition cartridges such that these new cartridges are completely interchangeable.

Abstract: Initiator modules for munitions control systems include a mounting portion for receiving a portion of an initiation device, a detonator device disposed within the initiator module, a connection portion configured to connect the initiator module with a munitions control system, and an electronics assembly configured to electronically couple with a munitions control system and transmit a signal to the detonator device. Munitions systems may include initiator modules received in a socket of a munitions control system. Methods of igniting explosive devices include coupling a shock tube to an explosive device, connecting an initiator module to a munitions control system, mounting a portion of the shock tube to the initiator module, and igniting the shock tube with a detonator device disposed within the initiator module.

Abstract: Exemplary methods and apparatus for testing an electrically fired item, e.g., a primer-only cartridge or all-up round (AUR) cartridge, in a variety of modes are provided. For example, a test system may provide a method of testing a primer-only cartridge and an apparatus to execute such method. Various parameters associated with operation of the electrically fired item, such as a primer or initiator, may be varied and measured using an embodiment including programmable selection of a pulse duration for firing control signals, a voltage of the firing control signals, and a number of pulses associated with the firing control signals. An inline resistance of the path of the control signals may also be adjusted. Test data including temperature, pressure, voltage, and/or current associated with operation of the electrically fired item may be measured during tests and displayed on a display device.

Abstract: A method of blasting plural layers of material in a blastfield that reduces the amount of mechanical excavation required to expose a lower layer of material. The method includes using rows of equally spaced blastholes that pass through all of the layers and additional intermediate rows of blastholes that pass down only through the top layer. Each blasthole is capped with stemming material and includes one or more decks of explosive material and detonators, which air decks or inert stemming separating adjacent explosive decks. The detonators in layer are detonated first in order from row rearwards to throw a substantial amount of the blast material from the layer forwardly of free face onto the floor. In the same blasting cycle and within seconds of the throw blast, explosives materials in layers are detonated in a stand-up blast in which material in layers are broken up but otherwise are minimally displace or thrown forwardly.

Abstract: A blast treatment method for blasting an object includes: a step in which an explosive is detonated inside a pressure vessel (30) which has an elasto-plastic metal, thereby imparting to the pressure vessel (30) an initial load wherein the primary and secondary stress generated in at least a portion of the pressure vessel becomes high enough to be in a plastic region exceeding the elastic region, thereby generating a shakedown state in the pressure vessel (30); and a subsequent step in which a treatment explosive (50) is detonated within the pressure vessel (30), thereby blasting the object (10).

Abstract: A measuring probe includes a stylus having a contact part to be in contact with an object to be measured, an axial motion mechanism having a moving member that allows the contact part to move in an axial direction, and a rotary motion mechanism having a rotating member that allows the contact part to move along a plane perpendicular to the axial direction by means of rotary motion. The measuring probe includes a probe main body that incorporates the axial motion mechanism, and a probe module that is supported by the probe main body, incorporates the rotary motion mechanism, and supports the stylus. The probe main body and the probe module are detachably coupled to each other with a pair of rollers and a ball capable of positioning to each other. This allows adequate detection sensitivity and a restoring force suitable for the stylus to be obtained at a low cost.

Abstract: One or more specific embodiments disclosed herein includes an apparatus for manually measuring the distance between a first and second point, comprising: a first and second member that is positioned adjacent to the first member, wherein the first member is capable of sliding with respect to the second member in an axial direction and wherein each of the first and second members is substantially straight and has at least two outer longitudinal sides that are substantially straight and substantially parallel to one another, a first replacement tip receiver at a first location between the two outer longitudinal sides of the first member, wherein a first tip can be removably coupled to the first member, and wherein the first tip includes a first tip point capable of corresponding to the first point of the distance to be measured, and a first scale that provides a first distance measurement.

Abstract: A tape scale application jig includes a frame having a U-shaped cross section; a scale holder that is disposed inside the frame and to which a tape scale is temporarily attached; a handle that is disposed outside the frame and that is connected to the scale holder via a through-hole formed in a web portion of the frame; a spring that is provided so as to separate the handle and the web portion from each other; and a positioning reference disposed on at least one of two flange portions of the frame.

Abstract: Provided is a sensor capable of holding a sensing element at a position of good sensitivity without requiring filling of the case with resin. The sensor includes a sensing element, a case accommodating the sensing element and having a detecting face for the sensing element in an outer face thereof, a holder accommodated inside the case together with the sensing element and pressing the sensing element toward the detecting face and a cable electrically connected to the sensing element. At least one of the holder and the case includes a contact portion deformable by a pressing force generated when the sensing element is pressed toward the detecting face.

Abstract: A system for determining information regarding at least one object, comprising: a sensor sensitive to capacitive coupling; at least one object adapted to create a capacitive coupling with the sensor when at least one signal is input to the sensor; a detector adapted to measure at least one output signal of said sensor associated with the at least one object, wherein the output signal associated with the at least one object is an object information code.

Abstract: A position indicator includes a resonance circuit housed in a casing and having an inductance element and a capacitor variable in capacitance, such that the resonance circuit resonates at a predetermined frequency. The position indicator is electromagnetically coupled to a position detecting device. The capacitor includes a dielectric, an electrode disposed on one side of the dielectric, and a trimming electrode disposed on another side of the dielectric such that at least one part of a region of the trimming electrode is opposed to the electrode with the dielectric interposed in between, to form the capacitance of the capacitor. The capacitor is housed in the casing such that the at least one part can be exposed from the casing. The area of the at least one part exposed from the casing to the outside is changed so as to correspond to a resonance frequency desired for the resonance circuit.

Abstract: The present invention relates to a method for contactlessly measuring a relative position of a magnetic field source (102) which produces a magnetic field and a magnetic field sensor (100) in relation to each other. The present invention further also relates to a corresponding displacement sensor. The invention describes an operating principle of a sensor which is based on the Hall effect and which achieves an increase in the sensor output range with a magnet which is simultaneously reduced in size by storing the earlier value when control by the magnetic field is lost.

Abstract: Volumetric distribution of a micromechanical parameter of a biological tissue, such as viscoelastic parameter or tissue stiffness, is determined, with microscopic resolution, from optical data representing light scattered by sequential layers of the tissue and, optionally, displayed to visualization. A particular layer of the tissue is defined through coherence-gating of light received at the optical detector. Coherence-gating is achieved with the use of an interferometer the sample arm of which contains the tissue, illuminated with defocused light, and an optical length of a reference arm of which is repeatedly adjusted, within a coherence length of used light, to ensure that each of the sequential optical interferograms represents light scattered only by a particular tissue layer a position of which is re-defined through the tissue via such adjustment.

Abstract: Heterodyne interferometry is combined with spectrally-controlled interferometry (SCI) to achieve the advantages of both. Phase shifts produced by SCI produce phase-shifted correlograms suitable for heterodyne interferometric analysis, thereby enabling interferometric measurements with conventional common-path apparatus free of coherence noise and scanning-related errors, and with the precision of conventional heterodyne interferometry. A spectrum-modulating light source suitable for the invention is obtained by combining a rotating spiral grating with a multi-slit grating placed in the front focal plane of a collimating lens that propagates the light toward a blazed diffraction grating. Another exemplary spectrum-modulating light source is obtained by combining a slit spectrometer with an acousto-optic modulator.

Abstract: An interference measuring device comprises: a light source; a beam splitter that causes the light to diverge into a reference optical path and a measurement optical path and that outputs a combined wave in which reflection light passed the reference optical path and reflection light passed the measurement optical path are combined; a reference light diverging part that causes the light diverged into the reference optical path, to further diverge into a plurality of optical paths and that causes reflection light beams respectively passed the optical paths to be input into the beam splitter; and a plurality of reference mirrors that are respectively arranged in the optical paths such that optical path lengths of the optical paths are different from each other, and that reflect reference light. An interference image is imaged by varying the optical path length of either the reference optical path or the measurement optical path.

Abstract: In a process for optical coherence tomography a plurality of first OCT slice images, in each first slice image representing a different slice of an object, are recorded. Subsequently a reference figure that is representative of the three-dimensional contour of at least one structural feature of the object in a given three-dimensional coordinate system is ascertained by feature recognition of the at least one structural feature in the first slice images. Then a plurality of second OCT slice images, each second slice image representing a different slice of the object, are recorded. At least a fraction of the second slice images are displaced in the coordinate system until each second slice image is in feature overlap with the reference figure. Lastly, a set of three-dimensional OCT image data is generated at least from the feature-overlapped second slice images.

Abstract: A method of manufacturing an optical interferometer includes a first step of forming a first semiconductor portion for a beam splitter and a second semiconductor portion for a movable mirror on a main surface of a support substrate and a first insulating layer formed on the main surface, a second step of disposing a first wall portion between a first side surface of the first semiconductor portion and a second side surface in the second semiconductor portion, and a third step of forming a mirror surface in the second semiconductor portion by forming a first metal film on the second side surface using a shadow mask. In the third step, the first side surface is masked by the mask portion and the first wall portion and the first metal film is formed in a state in which the second side portion is exposed from an opening portion.

Abstract: Provided is an apparatus and method for generating tomography mages, the apparatus including a detection unit configured to modulate each of incident beams into at least two basic modulated incident lights on the basis of at least a basic modulation parameter and into a target modulated incident light on the basis of a target modulation parameter, and to detect at least two basic interference signals and a target interference signal of an object; and an imaging unit configured to analyze the at least two basic interference signals to output a set target modulation parameter, to process the target interference signal as a target image of the object, and to output the target image.

Abstract: Optical coherence tomography imaging systems and methods are disclosed. According to an aspect, an optical coherence tomography imaging system includes a scanner configured to obtain images and to convert the images to electrical signals. The system also includes a computing device comprising an OCT module configured to receive the electrical signals, to apply an OCT imaging technique, and to generate imaging data.

Abstract: Imaging systems are provided allowing examination of different object regions spaced apart in a depth direction by visual microscopy and by optical coherence tomography. An axial field of view and a lateral resolution is varied depending on which object region is examined by the imaging system. The proposed imaging systems are in particular applicable for thorough examination of the human eye.

Abstract: In an illustrative embodiment, the free space attenuation of illumination with distance, according to a square law relationship, is used to estimate the distance between a light source and two or more different areas on the surface of a product package. By reference to these distance estimates, the angular pose of the product package is determined. Plural frames of imagery, captured both with and without illumination from the light source, can be processed to mitigate the effects of ambient lighting.

Abstract: An optical measuring system determines coordinates of points for distance measurement. The measuring system includes a radiation source for emitting electromagnetic radiation and a receiving unit having a filter unit for extracting electromagnetic radiation in a defined wavelength range and having, a detector, such that the radiation extracted by the filter unit is detectable by the detector. The filter unit includes at least two mirror elements which are at least partly reflective and constructed in a multilayered fashion. The mirror elements are substantially parallel to one another. Two adjacent mirror elements in each case enclose a cavity and are arranged at a specific distance from one another. An optical thickness is defined by a refractive index of the cavity and by the distance between the mirror elements. Optical thickness varying means operate to varying the optical thickness, such that an extractable wavelength range of the filter unit is varied.

Abstract: An optical inspection probe for obtaining and providing images of an object to be inspected. The optical inspection probe comprises an imaging assembly for capturing an image of an object and an illumination assembly for producing a light beam directed toward the object. The optical inspection probe is configured such that the light beam converges to a focal point at a first focal plane.