Abstract: Systems and methods for limiting transmission of vibrations and forces causing vibrations from one element to another are provided. A vibration isolator may include a compressible inner member and an outer member compressible with the inner member. The outer member may be positioned at least partially around the inner member to provide lateral support to the inner member. The outer member may maintain a consistent diameter and compression force when in a compressed state. The outer member may include a tube with a zero or near-zero Poisson's ratio.

Abstract: A hermetic compressor is provided. The hermetic compressor may include a compressor body spaced apart from an inner surface of a shell and including a motor unit and a compression unit; at least one support spring provided between the shell and the compressor body and that elastically supports the compressor body with respect to the shell; at least one stopper cap fixed to the inner surface of the shell or the compressor body facing the inner surface of the shell; and a stopper bar that extends from the compressor body or the inner surface of the shell and inserted into the at least one stopper cap with a predetermined distance therebetween. By mechanically restraining vibration of the compressor body and limiting amplitude of the compressor body, vibration noise of the compressor body may be reduced and the compressor body may be suppressed from being in contact with the shell to thereby prevent damage to the compressor body.

Abstract: An orthodontic device comprising a biasing member and first and second anchors for attaching the biasing member within a patient's mouth, wherein the biasing member exerts a bias under compression or extension, wherein the biasing member comprises a limiter for preventing movement of the biasing member past a predetermined limit, and wherein at least one of the first and second anchors is inelastic.

Abstract: An aerosol generator (100) has a vibratable plate (1) with apertures therein and an annular piezo (2) which causes movement of the vibratable plate (1). An annular support member (3) supports the piezo (2) and the vibratable plate (1). A first electrical power conducting pin (10) engages directly with a first, top, surface of the piezo (2). A second electrical power conducting pin (11) indirectly conducts electrical power to a second surface of the piezo (2), by contacting an extension tab (103) of the support member (20), also on its top side. There is a film of cured epoxy adhesive on the tab (103), providing excellent gripping force between the pin (11) and the support (3). The aerosol generator (100) avoids need for soldered joints for electrical contact, and the pins are conveniently mounted parallel to each on the on the same lateral and top side of the piezo and support member. The pins may have multi-point tips (50) for particularly effective electrical contact.

Abstract: A valve actuator device includes a supporting body, a driving shaft, and a fluid cylinder having a body connected to one side of the supporting body. The cylinder has a rod that controls rotation of a driving arm rigidly connected to the driving shaft. Linear movement of the rod is converted into rotation of the driving arm by engagement of a cam-follower pin carried by the rod within a slot formed in the driving arm. The slot is formed in an insert that constitutes an element separate from the driving arm body and that is received and held within a seat of the driving arm body. Thus, a single main body for the driving arm is provided, having a plurality of inserts for selective mounting within the seat and are differentiated from one another in the dimensions and shape of the slot and/or in the material of the insert.

Abstract: A spring assembly having at least two canted coil spring lengths nested together are disclosed. Two sections of coils of a canted coil spring length can each be positioned between two adjacent coils of another canted coil spring. Each section of the coils of the canted coil spring length includes at least one coil and up to several coils or a plurality of coils. The canted coil spring lengths are nested together to increase the deflection force of the overall spring assembly. The spring assembly having two or more nested spring lengths can be used in connector applications.

Abstract: The current invention discloses several methodologies that mitigate shock loading and propensity to resonance in agricultural spray boom structures. These include a near planar linkage for decoupling the boom assembly from the vehicle. This serves to permit further aspects of the invention to: Use the combined mass of the booms and center section as the tuned mass of a tuned mass damper: Act as an enabling part of a boom compliant suspension system to mitigate shock loadings otherwise imposed on the boom system, and: Act as an enabling part of an active boom height and roll control systems to permit the accurate navigation of the boom over undulating terrain. Further aspects include the incorporation of tuned mass dampers in the boom structure and components; and the use of the mass and operation of the boom outboard “breakaway” sections as tuned mass dampers.

Abstract: A rotation transmitting mechanism may include first and second tubular holders connected to first and second tubular members, respectively, to be incapable of rotating relative thereto, and a third tubular holder provided to project from an inside of the second tubular holder to the first tubular holder side and connected to the second tubular holder to be incapable of rotating relative thereto. The rotation transmitting mechanism may also include an inner coil spring, the ends of which are inserted inside of and respectively fixed to the first and third tubular holders, and an outer coil spring, the ends of which are inserted outside of and respectively fixed to the first and third tubular holders. The coils may have the same winding direction. In certain states, the second and third tubular holders may be connected to be incapable of rotating relative to each other.

Abstract: There is disclosed an improved substrate holding apparatus which can minimize deformation of a spring, which is provided to bias a support post for supporting a substrate, even when a large centrifugal force acts on the spring. The substrate holding apparatus includes: a support post movable in an axial direction thereof; a chuck provided on the support post and configured to hold a periphery of a substrate; a spring biasing the support post in the axial direction; a first structure configured to restrict a movement of an upper portion of the spring in a direction perpendicular to the axial direction of the support post; and a second structure configured to restrict a movement of a lower portion of the spring in a direction perpendicular to the axial direction of the support post.

Abstract: End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount.

Abstract: A vibration attenuation system for attenuating a transmission of an input signal is disclosed. The system includes a helical spring, a first terminal, and a first damping element. The helical spring includes a plurality of helical coils, a first end, and a second end. The plurality of helical coils define an inner volume of the helical spring intermediate the first and second ends. The first terminal includes a first inner member. The first terminal is coupled to the first end of the helical spring. The first inner member extends into the inner volume of the helical spring. The first damping element is positioned on the first inner member. The first damping element is within the inner volume of the helical spring. When the input signal is provided to the helical spring, the first damping element engages the helical coils and attenuates the transmission the input signal.

Abstract: Suspension group for motorized vehicles comprising a main spring which extends between a first and a second end of the group, a main damper connected in parallel to said main spring said main spring being pre-loaded by pre-loading means which together press the spring in compression and impose a rest length thereon, namely the length assumed by the spring when there are no further external loads on the first and/or on the second end of the group except for the pre-load caused by the pre-loading means, wherein the first and second end are connected kinematically to a first and a second mass of the motor vehicle respectively, the first mass being a mass suspended by the suspension group and the second mass being a non-suspended mass.

Abstract: A connector is disclosing with a housing having a housing groove and a shaft with a pin groove. A spring may be located in either the housing groove or the pin groove. To prevent or limit the spring from popping out from the groove where it is positioned, a reduced entrance is provided. The connector may be used in a holding application, a latching application, or both a holding with latching application.

Abstract: A spring assembly for a drug delivery device and to such a device, is presented having at least a first coil spring element, and at least a second coil spring element nested arranged with the first coil spring element, and at least a first support member attached to a first end of the first and the second coil spring elements.

Abstract: A spring system that includes at least an inner spring and an outer spring disposed around the inner spring. The inner spring exhibits a stiffness (k1) and the outer spring exhibits a stiffness (k2) in an uncompressed state. The inner spring exhibits a stiffness (k3) and the outer spring exhibits the stiffness (k2) in an intermediate compressed state, and the inner spring exhibits the stiffness (k3) and the outer spring exhibits a stiffness (k4) in a fully compressed state. In this manner, the spring system of the present disclosure may provide a vehicle with variable rates of compression that assist in providing a smooth ride at lower loads or jounce levels.

Abstract: A spring assembly includes a substrate, an inner coil spring, and an outer coil spring arranged outside the inner coil spring. One of the inner coil spring and the outer coil spring includes an end turn portion, the end turn portion forming a support wall for an other of the inner coil spring and the outer coil spring.

Abstract: A spring system that has first and second housings and a first mechanical spring connected to the first and second housings. The first and second housings each have a front portion having a front end and rear portion having a rear end and an internal chamber. The front end of the second housing is telescopically inserted into the internal chamber of the first housing. The first mechanical spring is at least partially positioned in the internal chamber of the first and second housings. The first end of the first mechanical spring is connected to a first connection arrangement in the first housing. The second end of the first mechanical spring is connected to a second connection arrangement in the second housing. The first and/or second connection arrangement threadedly engages the first mechanical spring.

Abstract: End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount. A friction-resistant coating is applied between components of the assembly to mitigate wear and to prevent bending and twisting.

Abstract: A surgical fastener comprising a clip movable between an open configuration and a closed configuration and a biasing member contacting the clip and biasing the dip to its open configuration when the biasing member is actuated. The biasing member and clip both tend to assume the closed configuration when no external forces are applied to them. A needle may be releasably attached to the clip. Methods for making the fasteners are also disclosed, in which both the clip and the biasing member are set in the closed position.

Abstract: A spring system for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member movable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. The spring system includes a valve arrangement to control the rate at which the spring rod moves from a retracted position to an extended position.

Abstract: A spring assembly including a helical coil formed from a multi-strand cord.

Abstract: A torsion spring assembly includes a torsion spring body and a fixed base. The torsion spring body has a first coil part and a second coil part. The first coil part connects to the second coil part. The fixed base has a first fixed arm and a second fixed arm. The first coil part is wound around the first fixed arm and the second coil part is wound around the second fixed arm. The winding direction of the first coil part is perpendicular to the winding direction of the second coil part. A portable electronic device with the torsion spring assembly is also disclosed.

Abstract: End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount.

Abstract: In a camera device 1a with a shutter button 2 for transmitting an externally-applied pressing force to a switch 7, a boss 24 has a first end attached to the shutter button 2, and a second end opposed to the switch 7, a coil spring 6a has a first winding portion 61a and a second winding portion 62a, which are respectively wound into first and second shapes about a common central axis As, the second shape includes the first winding portion 61a, and the second end of the boss 24 is inserted into the first winding portion 61a.

Abstract: According to one embodiment, a spring assembly includes: a substrate; a coil spring having an end turn portion fixed to the substrate; an inner wall provided at an inner peripheral side of the coil spring; and an outer wall provided at an outer peripheral side of the coil spring, wherein one of the inner wall and the outer wall forms a spring fixing wall configured to prevent the end turn portion of the coil spring from coming off in an axial direction of the coil spring, and wherein the other of the inner wall and the outer wall forms a support wall configured to prevent the end turn portion of the coil spring from moving in a radial direction of the coil spring.

Abstract: A multiple-layer compression spring having spring bodies that are disposed inside of each other wherein the spring bodies are produced in a continuous manner from an uninterrupted piece of wire.

Abstract: A force control strut including a housing having first and second ends and an internal chamber, a rod member having an inner end reciprocally movable inside the housing and along the internal chamber, a guide member forming a bushing allowing reciprocation of the rod member in the housing, a bottom plug fixed in the internal chamber, a guide piston secured to an inner end of the rod and slidable along an inner surface of the internal chamber, a first coil spring positioned between the guide piston and one end of the housing to bias the rod member in a given direction in the housing, a first external connector fixed to the rod member, a second connector fixed to the bottom plug, and a damper that includes a plunger reciprocally mounted in a force controlling passageway inside the rod member and movable in a passageway of the rod member.

Abstract: A mechanical strut includes an inner tube and an outer tube configured to telescopically receive at least a portion of the inner tube. The mechanical strut also includes a friction lock mechanism having a released configuration that allows movement of a first locking member and a second locking member of the friction lock mechanism within the mechanical strut. An engaged configuration of the friction lock mechanism prevents movement of the first and second locking members within the mechanical strut. An adjustment mechanism is operably coupled to the friction lock mechanism for placing the friction lock mechanism into the released configuration, thereby releasing the first locking member from frictional engagement with an inner surface of the mechanical strut and allowing telescopic movement of the mechanical strut through a continuous range of positions.

Abstract: A spring apparatus includes a double coil spring and an elastically deformable damper made of resin. The double coil spring includes an outer coil spring and an inner coil spring. The damper has at least one ring portion. The damper is arranged such that at least a part of the damper is in contact with the outer coil spring and the inner coil spring. A spring line of one of the outer coil spring and the inner coil spring passes through the ring portion, so that the ring portion is caught in the one of the outer coil spring and the inner coil spring and the damper is held between the outer coil spring and the inner coil spring.

Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.

Abstract: A spring including a wire having an elasticity by which the wire is compressible by an external force to a first position at which first and second ends thereof of are separated by a first distance and when the force is removed or an electrical current applied, the wire is extensible in response to an internal spring force to a second position at which the wire is substantially straight. A spring assembly is disclosed including a plurality of inventive wires cross-coupled with a support structure consisting of a plurality of coaxial rings. In the assembly, the wires extend parallel to an axis through a center of the rings.

Abstract: A spring seat 51 adapted to support a large coil spring 34 to absorb and to dampen torsional vibrations and a small coil spring 35 positioned within the large coil spring 34 having a smaller outside diameter than an inside diameter of the large coil spring 34, includes a seat body 52 supporting an end of the large coil spring 34 and an end of the small coil spring 35 in a compressing direction, a first supporting portion 54 protruding from the seat body 52 in the compressing direction of the small coil spring 35 and supporting an inner periphery of the small coil spring 35, and a second supporting portion 53 formed at an end portion of the seat body to covering partial an outer periphery of the large coil spring 34 and to support an outer peripheral side of a part of the large coil spring 34.

Abstract: A prosthetic spinal disc uses a stiff spring or springs for resiliency between two plates that attach to adjacent vertebrae. When the disc has multiple springs, they may be adjacent, concentric or nested. Multiple springs may be spaced around the periphery of the plates. A foil metal bellows may surround the plates to prevent material from entering or exiting the space between the plates. Alternatively, the ends of the spring(s) may be machined with spikes to engage the vertebrae directly without plates.

Abstract: A lift spring assembly has a compression spring rod with a housing having a longitudinal axis and axially opposite ends, and having a rod member coaxial with the axis and having an inner end in the housing and an outer end axially outwardly of one of the opposite ends. A guide member is provided on the inner end of the rod member for supporting the rod member during movement of the rod member. A first stage spring assembly extends between one of the opposite ends of the housing and the guide member. A second stage spring assembly extends between the other of the opposite ends of the housing and the guide member. A mounting member extending from one of the opposite ends of the housing for mounting the spring rod assembly to a hood assembly. A locking member is pivotally connected to the mounting member and pivots into locking engagement with one of the ends of the housing.

Abstract: The present invention is a computer controlled display device. In one embodiment, the display device includes a flat panel display having an input for receiving display data. Additionally, a moveable assembly may be coupled to the display. The moveable assembly may provide at least three degrees of freedom of movement for the flat panel display device. Additionally, the moveable assembly may have a cross-sectional area, which is substantially less than a cross-sectional area of a display structure of the flat panel display.

Abstract: A self-centering mechanical strut has first and second housing members. The second housing member telescopically receives the first housing member. Spring assemblies are mounted within each of the housing members. The spring assembly in the first tube is compressed when the first housing is pushed into the second housing. The spring assembly in the second tube is compressed when the first housing is pulled out of the second housing. Each housing is spring-biased to return to its respective neutral position.

Abstract: A gripping device for a set of pinch rollers used in a wire feeder that supplies a welding operation with a consumable welding wire. The welding wire passes between the pinch rollers whereby the pinch rollers engage the wire with a gripping force and incrementally rotate to control the outflow of the wire to the welding operation. The gripping device has a first member which is displaceable relative to a second member and a spring mechanism extending between the first and second members which has at least a first and a second spring modulus. The spring mechanism produces the gripping force as the first and the second members are displaced toward one another. The gripper urges one roller of the set of pinch rollers toward the other roller of the set to engage the wire and to apply the gripping force.

Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.

Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.

Abstract: A method is provided for adapting or adjusting a machine support where the weight of the machine is accommodated exclusively by a main support. For a differentiated adaptation of the machine support to secondary forces, such as oscillating inertial forces, at least one auxiliary module, which is free of the weight of the machine, is connected in parallel to the main support in such a way that as a consequence of the spring rigidity of the auxiliary module, a spring system combination of the main support and of the auxiliary module corresponds to prescribed characteristics of dampening and inherent frequency.

Abstract: A single spring unit includes a multi-helical spring formed of composite material. The single spring unit includes multiple layers of composite material disposed in a first helical configuration, and multiple layers of composite material in a second helical configuration interwoven with one another, and coupled together to form the single spring unit.

Abstract: A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounded by a second compression spring for biasing the rod member to one of an extended or retracted position relative to the housing. The two springs are oppositely wound, of different length, of different outside diameter, and of different wire diameter whereby, from a compressed condition, the spring rod exerts an expansion force which increases at a linear rate. Two sets of the springs can be arranged for biasing the rod member to a central position relative to the housing.

Abstract: A suspension assembly for a motor vehicle includes a wheel assembly attached to the frame of a motor vehicle for movement in response to uneven roadway surfaces. A first inductive coil attached to the frame is mounted along an axis, and a second inductive coil is mounted co-axially with the first inductive coil and for movement with the wheel assembly. The inductive coils are movable relative to one another along the axis. An electromagnetic force generated by the inductive coils provides spring and dampening forces for the motor vehicle. Further, variation in the inductance between the coils is measurement to determine the relative position between the coils in order to monitor motor vehicle ride height.

Abstract: Backrests for vehicle seats are disclosed including a support attached to a frame including a plurality of resilient springs and a corresponding plurality of stroke limiters for permitting the resilient springs to move through a predetermined stroke and absorb a load within a first load range and limiting further stroke of the resilient springs within a second load range, one of the resilient springs and the stroke limiters including a fastener for attachment to the frame and one of the resilient springs and stroke limiters including a second fastener for attachment to the support.

Abstract: A torsional vibration damper comprising at least two components which can be twisted against the resistance of at least one energy storage element, spring coils extending along its longitudinal axis. The components have forced-application areas for compressing the energy storage element. The invention also relates to a helical compression spring made of steel spring wire which has a plurality of coils along its length and can be compressed until it becomes blocked. Between its two terminal coils, the helical spring has at least two types of coils having different external diameters, namely a first larger external diameter and a second, smaller external diameter.

Abstract: A single spring unit includes a multi-helical spring formed of composite material. The single spring unit includes a multiple layers of composite material disposed in a first helical configuration, and multiple layers of composite material in a second helical configuration interwoven with one another, and coupled together to form the single spring unit.

Abstract: A spring assembly having a coil containing a core and methods and apparatus for manufacturing the same are disclosed. The coil includes a core between reduced portions of the coil. One device for manufacturing the coil includes a coiling machine having an insert device operable with a coiler. The coiler is programmed to form coils of appropriate diameter along the length of the coil, including a diameter sufficiently large to contain the core and two diameters sufficiently small to retain the core in the coil. The insert device transfers the core to the coil after the first small diameter is formed and before the second small diameter is formed. The coil with the core contained between the two small diameters is thereby manufactured in a unified automated process.

Abstract: A spring assembly having a coil containing a core and methods and apparatus for manufacturing same are disclosed. The coil includes a core between reduced portions of the coil. One device for manufacturing the coil includes a coiling machine having an insert device operable with a coiler. The coiler is programmed to form coils of appropriate diameter along the length of the coil, including a diameter sufficiently large to contain the core and two diameters sufficiently small to retain the core in the coil. The insert device transfers the core to the coil after the first small diameter is formed and before the second small diameter is formed. The coil with the core contained between the two small diameters is thereby manufactured in a unified automated process.

Abstract: A multiple torsion spring assembly according to the present invention may be provided with a coiled helical torsion spring. The spring has first and second end coils, and a plurality of intermediate coils between the first and second end coils. The first end coil inner diameter is less than the inner diameter of the intermediate coils. The second end coil inner diameter is less than the inner diameter of the first end coil. The spring may be used to control a throttle return of a throttle body. Methods of manufacturing spring assemblies are also disclosed.

Abstract: The device serves for storing energy. A spatial work range is defined by a displacement path upon compression of at least one spring of the spring storage. Along the work range in the working direction, at least two springs are arranged which are impinged in temporal succession upon compression and relaxation, respectively. For impinging the springs, at least one stationary retaining element and a mobile runner are provided. A spring loaded at a first point of time is immobilized in such a way that during a further displacement of the runner no further force is exerted by this spring between runner and retaining element. Reactivation of the immobilized springs is provided in temporal succession upon a reverse movement of the runner.