Abstract: An air compressor includes a compressor unit having a motor, a pump operably coupled to the motor and a primary tank fluidly coupled to the pump to receive pressurized air from the pump when operated by the motor. Air compressor also includes a secondary tank connected to the first tank. The secondary tank having a different air pressure than the primary tank and the air pressure in the secondary tank being controlled by fluidly connected valves to the primary tank.

Abstract: [Object] To provide a technology or the like capable of improving driving efficiency of a diaphragm pump. [Solving Means] A diaphragm pump (10) according to the present technology includes a first diaphragm (1a), a second diaphragm (1b), and an adjustment portion (11). The first diaphragm (1a) includes a first member including a first elastic portion (5a), and a first drive unit that elastically deforms the first elastic portion (5a) by drive of the first drive unit. The second diaphragm (1b) includes a second member that includes a second elastic portion (5b) and forms a space (13) with the first member, a fluid flowing in the space, and a second drive unit that elastically deforms the second elastic portion (5b). The adjustment portion (11) is provided to at least one of the first diaphragm (1a) or the second diaphragm (1b) and is for adjusting a resonant frequency of the at least one of the first diaphragm (1a) or the second diaphragm (1b).

Abstract: A fluid control apparatus includes a flow-path space forming portion, an inflow opening, an outflow opening, and a drive mechanism. The flow-path space forming portion includes a flexible portion that have flexibility, and a facing portion that faces the flexible portion, the flow-path space forming portion forming a flow path space between the flexible portion and the facing portion, the flow path space being a flow path of fluid. The inflow opening is provided to an outer peripheral portion of the flow path space, as viewed from a facing direction in which the flexible portion and the facing portion face each other, the inflow opening being an opening through which the fluid flows into the flow path space.

Abstract: The present invention relates to a peristaltic pump including planetary rollers (6) configured to revolve around a rotor driving the planetary rollers, wherein the rotor is configured to push the planetary rollers against a flexible tube such that the flexible tube is squeezed between the planetary rollers and a wall of a pump housing. In order to facilitate the assembly and/or reduce the manufacturing cost and/or reduce the operating noise, a contact surface between the rotor and the planetary rollers is toothless.

Abstract: A gas compression system that can continue control of the number of operated pieces of a compressor even when an abnormality has occurred and a control method thereof are provided. The gas compression system includes compressors, a number-of-pieces controller that executes master control to control the number of operated pieces of the compressor, and a communication network that connects the compressors and the number-of-pieces controller with each other in a mutually communicable manner. Each compressor includes a compressor main unit that compresses a gas and a controller that executes slave control to control the compressor main unit in response to a command from the number-of-pieces controller.

Abstract: In some implementations, a controller may obtain an indication of a first crank angle associated with a first pump, of a dual-pump single-power source system, that is mechanically connected to a power source of the dual-pump single-power source system via a first clutch. The controller may obtain an indication of a second crank angle associated with a second pump, of the dual-pump single-power source system, that is mechanically connected to the power source via a second clutch. The controller may determine that a difference between the first crank angle and the second crank angle is outside of a tolerance of a crank angle difference value. The controller may modulate a fluid pressure associated with at least one of the first clutch or the second clutch to cause the difference between the first crank angle and the second crank angle to be within the tolerance of the crank angle difference value.

Abstract: In some implementations, a controller may obtain a set of measurement values associated with the dual-pump single-power source system, wherein the set of measurement values includes at least one of one or more speed measurements associated with a clutch that is coupled to a power source and a first pump of the dual-pump single-power source system, a measurement value indicating an output speed of the power source, or a first crank angle associated with the first pump and a second crank angle associated with a second pump of the dual-pump single-power source system. The controller may detect that the clutch is experiencing slippage based on comparing at least two measurement values of the set of measurement values. The controller may perform an action to cause the clutch to disengage a mechanical connection between the first pump and the power source while the power source is running and is mechanically connected to the second pump.

Abstract: A pump head element and a pump head comprising same, and a container. The pump head element comprises a buffer liquid portion (11), an opening portion (12), and a closed end (13); the opening portion (12) has one end communicated with the buffer liquid portion (11) and the other end connected to the closed end (13); the internal space of the buffer liquid portion (11) and the internal space of the opening portion (12) are defined as liquid storage space (14); the liquid storage space (14) has one end closed by an externally provided piston (2) and the other end closed by the closed end (13); and the opening portion (12) comprises an opening (15) through which liquid to be extracted enters or leaves the liquid storage space (14).

Abstract: In accordance with at least one aspect of this disclosure, embodiments of fluid pumps, pump cases, valve bodies, and volutes are disclosed herein. Embodiments of methods for manufacturing fluid pumps, pump cases, valve bodies, and volutes are also disclosed herein. Embodiments can include additive manufacturing, for example. Certain embodiments can include additively manufacturing a pump case in a tilted orientation, utilizing only coincidental support structure having a unique shape, and with teardrop shaped volute and/or valve body.

Abstract: The utility model relates to internal cycloidal gear mechanisms and can be used in various branches of mechanical engineering as working members of hydraulic machines (pumps and engines), compressors, internal combustion engines, as well as in planetary gearboxes, in particular in technical systems for drilling and repairing oil and gas wells. The problems to be solved by the utility model include the improvement of the quality of the process of designing working members having a cycloidal tooth profile, as well as the substantiation of the conditions for modifying cycloidal face profiles (by choosing the required combination of dimensionless gearing coefficients) in order to achieve the maximum or minimum open area of the gerotor mechanism having a different kinematic ratio.

Abstract: A rotor for a mud motor includes a core having a first outer shape, and a shell positioned around the core, the shell having a second outer shape that is different from the first outer shape, the second outer shape defining one or more lobes and one or more cavities that are configured to engage a bore of a stator during rotation of the rotor relative to the stator. A thickness of the shell varies as proceeding around the core, from a non-zero minimum thickness to a maximum thickness.

Abstract: [Problem] To reduce imbalance among all movable components of a scroll compressor including a drive shaft and components fixed or connected to the drive shaft. In a scroll compressor 10, a shaft balancer 31 integrated with a drive shaft 30 includes a first weight 33 disposed on the opposite side from an eccentric pin 71 with respect to a center line CL0 of the drive shaft 30, and a bushing balancer 721 integrated with an eccentric bush 72 includes a second weight 723 disposed on the radially outer side of the eccentric bush 72 and on the opposite side from a center line CL1 of the eccentric pin 71 with respect to a center line CL2 of the eccentric bush 72. In a view from the axial direction of the drive shaft 30, the second weight 723 is symmetric with respect to a virtual line passing through the center of the drive shaft 30 and the center of the eccentric bush 72, and the first weight 33 is asymmetric with respect to the virtual line.

Abstract: Reduction of a rotational moment that occurs in an orbiting scroll is suppressed. A scroll compressor 10 includes: a fixed scroll 51; an orbiting scroll 52; an anti-rotation mechanism 300; and a back pressure chamber H5. A spiral orbiting wrap 522 of the orbiting scroll 52 is meshed with a spiral fixed wrap 512 of the fixed scroll 51. A first compression chamber C1 is formed by an inner wall surface 522a of the orbiting wrap 522 and an outer wall surface 512b of the fixed wrap 512. A second compression chamber C2 is formed by an inner wall surface 512a of the fixed wrap 512 and an outer wall surface 522b of the orbiting wrap 522. The orbiting base plate 521 of the orbiting scroll 52 includes a first through hole 701 capable of communicating the first compression chamber C1 with the back pressure chamber H5 and a second through hole 702 capable of communicating the second compression chamber C2 with the back pressure chamber H5.

Abstract: A compressor and a moving scroll thereof includes a moving scroll wall integrally formed at a first side of a moving base plate, the moving scroll wall extending around an axis. A collection groove is disposed on an end face of the moving scroll wall, the end face being located at the end of the moving scroll wall that is opposite the moving base plate in the direction of the axis. A channel running in the direction of the axis is disposed between the collection groove and a second side, the channel and the collection groove being connected at a first port, and the channel running through the second side at a second port. The collection groove extends not less than 60 degrees and not more than 400 degrees around the axis from the first port to the collection end.

Abstract: A centrifugal pump includes a pump housing having a suspension inlet and a suspension outlet and a flow channel between the inlet and the outlet, a shaft mounted by bearings for rotation about a center axis, an impeller which is rotatable by the shaft, in alignment with the inlet and arranged to be rotated about the axis in the flow channel, and gas collecting openings for gas removal arranged in the flow channel. The inlet end of the flow channel includes a number of static vanes comprising gas collecting openings, the vanes extend radially from an inner wall of the flow channel toward the center of the flow channel and are upstream of the impeller.

Abstract: Pumps and fluid-handling devices for modifying at least one property of a fluid and related method comprise a compensation assembly including at least one biasing element to enable a hydraulic insert to move within a housing.

Abstract: A compressor includes a first-stage compression unit configured to compress a refrigerant, a second-stage compression unit configured to compress the refrigerant compressed by the first-stage compression unit, a shaft member connected to the first-stage compression unit and the second-stage compression unit, and a cover member configured to cover the shaft member. A first passage is provided between the first-stage compression unit and the second-stage compression unit. A front chamber is provided around the cover member. The front chamber is connected to the first passage and to a second passage to which the refrigerant from an economizer is sent. The second passage is provided with a passage structure configured such that a flowing direction of the refrigerant supplied through the second passage to the front chamber is an avoidance direction. The avoidance direction is a direction that differs from a direction toward the shaft member.

Abstract: In an axial flow fan, a plurality of blades are rotated about a rotation axis of the plurality of blades to generate an air current. Each of the plurality of blades includes a leading edge portion on a forward side in a rotation direction, and a trailing edge portion on a rearward side in the rotation direction. At the trailing edge portion of the blade, a first recessed portion is formed such that the first recessed portion is recessed toward the leading edge portion. At the leading edge portion of the blade, the second recessed portion is recessed toward the trailing edge portion. Ranges of the first recessed portion and the second recessed portion in a radial direction overlap with each other or completely coincide with each other.

Abstract: A lower portion of a cylindrical portion provided in a vacuum pump on the outlet port side has an extension portion extending to a further downstream side than a stationary part of a thread groove exhaust element. In the extension portion, the smaller the outer diameter, the smaller the stress applied to the inner diameter side during rotation. As such, the configuration including a reduced diameter portion reduces the stress applied to the inner diameter side of the cylindrical portion without lowering the rotation speed of the rotating body. Additionally, providing a gradually decreasing diameter structure in the extension portion reduces stress concentration at the reduced diameter portion.

Abstract: There is obtained a vacuum pump which suppresses an influence on external piping caused by a contact failure of a rotor during rotation of the rotor. A temperature rise ring 301 is provided in the vacuum pump, an outlet port 133 to which the external piping is connected is connected to the temperature rise ring 301, and a rotational force is directly or indirectly applied to the temperature rise ring 301 due to the contact failure of the rotor during the rotation of the rotor. In addition, a rotation suppression means (a hole 301a and a bolt 305) for suppressing rotation of the temperature rise ring 301 by the above-described rotational force is provided separately from a connection portion between the temperature rise ring 301 and a casing (outer tube 127a).

Abstract: A blower includes a lower case provided with an inlet; a first tower that extends upward from the lower case and is formed with a first outlet; a second tower that extends upward from the lower case and is provided with a second outlet; a fan that is rotatably disposed on the lower case; a first air flow converter that is disposed at the first tower; and a second air flow converter that is disposed at the second tower, each of the first air flow converter and the second air flow converter including: a guide board that is disposed inside the first tower or the second tower or protrudes through a first wall or a second wall; an upper gear that rotates in engagement with an upper portion of the guide board; a lower gear that rotates in engagement with a lower portion of the guide board; a shaft that is connected to each of the upper gear and the lower gear to rotate together; and a motor that is connected to one of the upper gear and the lower gear to provide a driving force.

Abstract: A fan assembly including a base arranged to support the fan assembly on a surface, an air flow generator that is arranged to generate an air flow, and an air outlet that is arranged to emit at least a portion of the air flow from the fan assembly is provided. The air outlet is arranged to be oscillated relative to the base. The fan assembly further includes a controller that is arranged to control the oscillation of the air outlet relative to the base. The controller is arranged to vary an oscillation speed of the air outlet for each oscillation.

Abstract: A built-in air pump with rapid inflation and deflation for an inflatable product includes a first channel, a second channel and a centrifugal fan. A first air hole and a third air hole are formed in the first channel. A second air hole and a fourth air hole are formed in the second channel. The suction end of the centrifugal fan is abutted against the first channel, and the exhaust end of the centrifugal fan is abutted against the second channel. When in inflation, the first air hole and the second air hole are communicated with the outside of the inflatable product, and the third air hole and the fourth air hole are communicated with an inner cavity of the inflatable product.

Abstract: The compressor arrangement comprises a main compressor having a suction side, a delivery side, and at least one dry gas seal. The dry gas seal is fluidly coupled to a sealing gas feed circuit adapted to receive sealing gas from the delivery side of the main compressor and feed the sealing gas to the at least one dry gas seal. An auxiliary compressor unit is further provided, including a sealing gas inlet fluidly coupled to the sealing gas feed circuit, and a sealing gas outlet fluidly coupled to the sealing gas feed circuit and adapted to booster the sealing gas pressure in the sealing gas feed circuit. The auxiliary compressor unit is further adapted to receive a gas flow from the main compressor, for instance a primary vent from the dry gas seal for recovery purposes.

Abstract: A method includes simplifying flowing of airflow at root of a rotor blade into flowing of free jet, and determining an airflow expansion angle according to Mach number of incoming flow at root of a stator vane; calculating a radial height difference between a first end point on a leading edge of a stator platform and a trailing edge of an adjacent rotor platform by using an axial distance thereof, the angle and a deviation coefficient; determining position of the first end point with radial height difference; determining intersection point of the leading edge and the stator platform as position of a second end point on the leading edge; and determining a profile line between the points by bridging spline curves, so that the tail end thereof is tangent to the intersection line, and the starting end thereof is kept on same plane as side wall of the leading edge.

Abstract: A rotor includes a bolt fixing portion having a plurality of bolts for collectively fixing a plurality of impellers including a disk having a central shaft structure. The disk has a first fitting portion having a plurality of first protrusion portions and first recessed portions, a second fitting portion having a plurality of second protrusion portions and second recessed portions, and a plurality of bolt holes through which the first fitting portion and the second fitting portion pass and into which the bolt is inserted. The first protrusion portion is fitted into the second recessed portion of another adjacent impeller in a state where movement in the circumferential direction is restricted to each other, and the first recessed portion is fitted to the second protrusion portion of another adjacent impeller in a state where movement in the circumferential direction is restricted to each other.

Abstract: A centrifugal air-sending device has blades that each have a vane length in a first region that is greater than a vane length in a second region and have a portion at which a proportion for which a turbo vane portion accounts is higher in a radial direction than a proportion for which a sirocco vane portion accounts in the first region and the second region. The blades that are located closer to an outer circumference than is an inner circumferential side end portion of a bell mouth that is located closest to an inner circumference in the radial direction is defined as a blade outer circumferential portion that is formed such that the proportion for which the sirocco vane portion accounts is higher in the radial direction than or equal to the proportion for which the turbo vane portion accounts in the first region and the second region.

Abstract: A turbo fan, formed by ultrasonic welding, a first component including: a flat portion; and plate-shaped blade portions standing from the flat portion, and a second component having recessed groove portions in each of which an end portion of the respective blade portion fits. The groove portions have a groove width greater than a thickness of the end portions of the blade portions. The turbo fan includes a group of positioning ribs partially burying two clearances created on two sides of the end portion in a thickness direction thereof, respectively, in a pre-welding state. The group of positioning ribs protrude in the thickness direction from the end portion of at least one of the blade portions, or from side surfaces of at least one of the groove portions, and are in contact with side surfaces of the groove portion, or in contact with the end portion of the blade portion.

Abstract: Provided is an axial fan including multiple forward-swept blades. An angle of advance of a trailing edge of the forward-swept blade is larger than an angle of advance of a leading edge of the forward-swept blade. An outer portion of the trailing edge, being positioned further in an outer periphery of the trailing edge than an intermediate portion of the trailing edge with respect to a rotary shaft of the axial fan, advances as the trailing edge advances radially outward of a ventilation channel of the axial fan.

Abstract: A multi-blade centrifugal air-sending device includes an impeller including a back plate having a disk shape, a plurality of blades arranged at a peripheral portion of the back plate in a circumferential direction, and a rim having an annular shape and disposed to face the back plate, the rim fixing the plurality of blades; and a scroll casing having a spiral shape and housing the impeller, the scroll casing being configured such that air is introduced from the side of the rim and blown out to the outer peripheral side. The impeller is constituted by a metal. Each of the blades has a wall thickness constant from the side of the back plate to the side of the rim and extends toward the inner side further than an inner peripheral end of the rim.

Abstract: The compressor section can have a centrifugal impeller operable to rotate around an axis, the centrifugal impeller having blades, a compressor inlet oriented towards the front and axially relative the axis, a compressor outlet oriented radially outwardly relative the axis, a diffuser having a diffusion flow path, a diffuser inlet in fluid flow communication with the compressor outlet, a diffusion flow path between a rear wall and a front wall; a collector extending circumferentially around the axis, having a collector inlet in fluid communication with the diffuser outlet, and a collector outlet; and hollow structural members protruding rearwardly from the rear wall, the hollow structural members being circumferentially interspaced from one another, each hollow structural member having a length extending radially along the rear wall and having an internal conduit extending radially inwardly along the length.

Abstract: A gas turbine engine includes a fan having a plurality of fan blades, a turbomachine operably coupled to the fan for driving the fan, the turbomachine including a compressor section, a combustion section, and a turbine section in serial flow order and together defining a core air flowpath, a nacelle surrounding and at least partially enclosing the fan, the nacelle defining a longitudinal axis, and an inlet pre-swirl feature located upstream of the plurality of fan blades, the inlet pre-swirl feature attached to or integrated into the nacelle, wherein the inlet pre-swirl feature is transitionable between a first angle with respect to the longitudinal axis of the nacelle and a second angle with respect to the longitudinal axis of the nacelle.

Abstract: An attachment structure enabling more efficient work in performing maintenance of a fan of a fan unit and a more stable electrical connection between a main body of an electrical equipment and a fan unit. An attachment structure configured to detachably attach a fan unit including a fan and a casing housing the fan to/from a main body of an electrical equipment includes a guide mechanism configured to guide a slide motion of sliding the casing in one direction relative to the main body to dispose the casing at a mounting position, and a retaining mechanism configured to restrict movement of the casing relative to the main body in a direction opposite the one direction when the casing is disposed at the mounting position by the slide motion.

Abstract: An energy-conserving fluid pump is an apparatus used to transport low viscosity fluids like water and fuel without experiencing cavitation, recirculation, nor motor locking while also conserving energy. The apparatus includes a fluid diffuser, a fluid densifier, a convergent housing, and a strut assembly. The fluid diffuser improves the efficiency of the apparatus by expanding the fluid inflow and maintaining a fluid pressure buildup. The fluid densifier shears the incoming fluid flow from the fluid diffuser and increases the fluid outflow pressure. The convergent housing encloses the fluid diffuser and the fluid densifier while facilitating the outflow of the pressurized fluid without the loss of fluid pressure nor cavitation. In addition, the convergent housing facilitates the transfer of torque to the fluid diffuser for the operation of the apparatus. The strut assembly keeps the fluid densifier stationary while enabling the rotation of the convergent housing and/or the fluid diffuser.

Abstract: A siphon includes a feed area for feeding a liquid, a downpipe connecting to the feed area, extended from top to bottom in a use position of the siphon, a deflection pipe filled with liquid during stationary operation on the end of the downpipe facing away from the feed area connecting to this, a riser pipe on the end of the deflection pipe facing away from the downpipe, and connecting to this, extended from bottom to top in the use position, and a discharge area connecting to the end of the riser pipe facing away from the deflection pipe for discharging liquid. A storage tank arranged on the siphon between the feed area and the discharge area is hydraulically connected to the deflection pipe and designed to automatically fill with liquid during stationary operation and to automatically empty into the deflection pipe following a pressure surge affecting the siphon.

Abstract: An actuation pressure to actuate one or more hydraulic actuators may be determined based on a load on the one or more hydraulic actuators of a robotic device. Based on the determined actuation pressure, a pressure rail from among a set of pressure rails at respective pressures may be selected. One or more valves may connect the selected pressure rail to a metering valve. The hydraulic drive system may operate in a discrete mode in which the metering valve opens such that hydraulic fluid flows from the selected pressure rail through the metering valve to the one or more hydraulic actuators at approximately the supply pressure. Responsive to a control state of the robotic device, the hydraulic drive system may operate in a continuous mode in which the metering valve throttles the hydraulic fluid such that the supply pressure is reduced to the determined actuation pressure.

Abstract: A hydraulic drive pump system incorporates: 1) a concentric, multi-lobed cam that produces multiple strokes per revolution; 2) a piston profile that maximizes the number of large-diameter pistons arranged radially around the centerline axis; 3) a flexible piston base 50 with internal oil flow; 4) hydraulically connected cylinders which counter displacement issues raised in item 2 above; 5) variable stroke capability leading to infinitely variable output the ability to disengage unneeded cylinders from the cam; 6) integral reservoir and accumulator capacity; 7) compact, external pressure and return manifolds; 8) axially-oriented pressure and return manifolds 60, 70, and 9) a hydraulic reservoir and pressure tank integrated into the body of the pump.

Abstract: A seal assembly includes a piston and a seal. The piston includes a first radial piston wall, a second radial piston wall extending radially further than the first radial piston wall, a groove formed between the first radial piston wall and the second radial piston wall, and a bypass line extending at least partially around the groove. The seal disposed in the groove. The seal includes a first sealing lip extending radially outward beyond the second radial piston wall and a second sealing lip. The second sealing lip is sealed against the first radial piston wall to seal an entry space when acted on by a pressure below a predetermined pressure limit pG, and pivotable radially inward to open the entry space when acted on by a pressure above the predetermined pressure limit pG.

Abstract: An arrangement for operating a hydraulic consumer including a hydraulic control valve having a main slide valve defining a hydraulic volume flow in the direction of hydraulic connections provided for operation of the hydraulic consumer, a pressure compensation valve and an orifice plate, the pressure compensation valve controlled on the basis of a pressure difference that drops at the orifice plate when the volume flow passes through, such that the pressure compensation valve adopts an at least partially closing control position when the hydraulic pressure upstream of the orifice plate in the direction of the volume flow is greater than downstream of the orifice plate, including a restoring spring force of a spring element preloading the pressure compensation valve into a fully open position, and a sensor arrangement sensing the pressure difference and transmitting a pressure difference value derived therefrom to a control unit evaluating the pressure difference value.

Abstract: Apparatuses for controlling gas flow are important components for delivering process gases for semiconductor fabrication. These apparatuses for controlling gas flow frequently rely on flow restrictors which can provide a known flow impedance of the process gas. In one embodiment, a flow restrictor is disclosed, the flow restrictor constructed of a plurality of layers, one or more of the layers having a flow passage therein that extends from a first aperture at a first end of the flow restrictor to a second aperture at a second end of the flow restrictor.

Abstract: A suspension assembly (14) comprises first and second suspension members (10, 12). The suspension assembly (14) further includes a pivot member (24) on which the first and second suspension members (10, 12) are pivotally mounted. Each of the first and second suspension members (10,12) defines clamping recess (30) for receiving an article (16). Each of the first and second suspension members (10, 12) also defines an elongate aperture (28) for effecting pivoting movement of at least one of the first and second suspension members (10, 12) to clamp the article in the clamping recesses (30).

Abstract: A modular storage clip and a kit including a plurality of the same are provided. The modular storage clip, notably, can secure an object within an interior cavity and can rotatably connect to other modular storage clips, forming a stable structure capable of rotating about the points of connection and holding multiple objects. The modular storage clip and kit are thus useful, for instance, for storing and organizing numerous cosmetic items in preparation for a cosmetic routine.

Abstract: Attachment device including: —a conical insert in the form of a truncated cone, an internal ring which is provided with a recess in the form of a truncated cone the diameter of which narrows in the direction of the interior of the tube and the angle of which is equal to the angle of the truncated cone of the conical insert, and an external ring comprising a cylindrical portion the internal diameter of which is substantially equal to the external diameter of the tube, the external ring comprising a shoulder which partially closes an end of the external ring and which has a circular opening, the shoulder comprising an annular internal face which is intended to abut the end face of the tube and the transverse end face of the internal ring located at the side of the end of the tube.

Abstract: A coupling kit-of-parts is provided for mounting an interior substructure to a primary structure of an aircraft. The kit includes a locking member and a mounting member. When the locking member is inserted into the mounting member, a first member part and a second member part are pushed radially outward to engage the primary structure in a form-fitting manner. When the locking member is removed, the first and second member parts are urged radially inward thereby disengaging from the primary structure.

Abstract: The present disclosure relates to fastening collars, multi-piece fasteners, and methods for fastening. A fastening collar comprises a first collar end, a second collar end, and an elongate portion intermediate the first collar end and the second collar end and defining a longitudinal axis of the fastening collar. The elongate portion comprises a first region adjacent the first collar end, extending a first distance along the longitudinal axis; a second region adjacent to the second collar end, extending a second distance along the longitudinal axis, and comprising a flange; and an inner collar surface defining collar cavity extending through the elongate portion from the first collar end to the second collar end. The second collar end extends away from the longitudinal axis of the elongate portion at a first angle offset from an angle perpendicular to the longitudinal axis of the elongate portion.

Abstract: The disclosure relates to an assembly (1) for providing a fastening possibility for a vehicle component (2), in particular an interior component, to a body component, where the assembly (1) is in particular designed as a torsion clip. The fastening assembly (1) includes a connecting element (3), preferably made of a plastic material, to which the vehicle component (2) is connectable.

Abstract: The present invention provides a universal fastening system that joins or affixes two or more objects together. The universal fastening system comprises a driving tool having a first end and a second end connected through a cylindrical shaft, wherein one end is a tip end having a plurality of indentations, and the other end is a tool head for receiving a driving shaft which can be rotated by a hand-driven tool or motorized tool. The system also includes a fastener comprising a head part on which a plurality of protrusion or teeth are positioned to facilitate the engagement of the fastener with the driving tool at various angles. Furthermore, the fastener also includes a shank member centrally attached to the head of the fastener, having a plurality of threads enables the insertion of the fastener within the fastening channel when rotated by the driving tool.

Abstract: Range taking shear bolts and bolt installation (drive) tools are described herein, which are configured for use with a variety of range taking connectors and conductors.

Abstract: An end nut assembly comprising a nut body defining a first portion and a second portion, a first opening is adjacent the first portion and a second opening is adjacent the second portion, and an axial bore extends between the first opening and the second opening. A bite ring defines an outer ring and a plurality of teeth extends radially inwardly from the outer ring, and a spacer defines an inner surface and an outer surface, wherein the inner surface defines a cavity centrally located within the spacer. The end nut assembly does not contain an o-ring.

Abstract: A thumb screw includes a main body and a rotating member. The main body has a shank and a threaded portion which are connected together along an axis of the main body. The shank has a groove and two guiding holes respectively located on two opposite sides of the groove and communicating with the groove. The rotating member has a head, a rod connected to an end surface of the head, and two pin portions connected to the rod. The head has two receiving grooves adapted to receive two partial end portions of the shank. When the two partial end portions leave the two receiving grooves and the two pin portions are respectively located in the two guiding holes, the rotating member could pivot around the two pin portions relative to the main body, thereby allowing the thumb screw to be received.