| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 267166000 | COIL | 77 |
| 20090261518 | Microalloyed Spring - The systems and methods described herein include innerspring assemblies or innerspring cores for use with cushioning articles such as mattresses. The innerspring core may have one or more coil springs formed from a high-carbon steel wire alloyed with one or more suitable alloying elements such as titanium and copper and capable of imparting greater strength and durability to the innerspring core. | 10-22-2009 |
| 20100052231 | COIL SPRING FORMING APPARATUS AND COIL SPRING FORMED THEREBY - A coil spring forming apparatus including a core bar | 03-04-2010 |
| 20100090384 | COIL SPRING - A coil spring has a spring wire wound in a coil shape having an outer diameter side portion and an inner diameter side portion on a peripheral shape in a cross section thereof, one of the outer diameter side portion and inner diameter side portion formed in a semi-circular shape expressed by x | 04-15-2010 |
| 20100171249 | SPRING WITH ENHANCED PRECISION OF ELASTIC ENERGY - The invention provides a spring, which has multiple continuously arranged loops. The first and second loops of at least one of the two ends of the spring are fixedly connected with each other. Accordingly, when the first loop of the spring sustains a force, the first loop will not be outward swiveled or laterally displaced. Therefore, the action force applied to the spring can be effectively converted into elastic energy of the spring. | 07-08-2010 |
| 20100295223 | Coil Spring Having Unknotted End Turns With Bumps - Disclosed herein is a bedding or seating product ( | 11-25-2010 |
| 20110031666 | Heat Treatment of Helical Springs or Similarly Shaped Articles by Electric Resistance Heating - Apparatus and method are provided for metallurgical heat treatment of coil springs, or similarly shaped workpieces and articles of manufacture, by electric resistance heating along the entire length of the workpiece so that the ends of the workpiece can be heat treated to the same degree and quality as the section of the workpiece between its two ends. | 02-10-2011 |
| 20110062640 | VARIABLE CANTED COIL SPRING CROSS SECTION - A canted coil spring includes a plurality of canted coils generally canted relative to a centerline extending through the coils. At least one coil when viewed in the direction of the centerline appears to have a non-elliptical shape and a non-circular shape when the at least one coil is in the unbiased state. The plurality of coils is generally canted at a first coil angle relative to the center line. The at least one coil includes at least one section canted at a second coil angle relative to the centerline. The second coil angle is different from the first coil angle when the at least one coil is in an unbiased state. | 03-17-2011 |
| 20110074076 | SPRING STEEL AND SPRING HAVING SUPERIOR CORROSION FATIGUE STRENGTH - A high-strength spring steel and a spring are provided that have superior corrosion fatigue strength. The spring steel comprises, in mass percent, 0.35-0.55% C, 1.60-3.00% Si, 0.20-1.50% Mn, 0.10-1.50% Cr, and at least one of 0.40-3.00% Ni, 0.05-0.50% Mo and 0.05-0.50% V, the balance being substantially Fe and incidental elements and impurities. | 03-31-2011 |
| 20110074077 | SPRING STEEL AND SPRING HAVING SUPERIOR CORROSION FATIGUE STRENGTH - The present application provides a high strength spring steel and a high strength spring that have superior corrosion fatigue strength. The spring steel comprises, in terms of percent by mass, 0.35-0.55% C, 1.60-3.00% Si, 0.20-1.50% Mn, 0.10-1.50% Cr and at least one element selected from 0.40-3.00% Ni, 0.05-0.50% Mo 0.05-0.50% V, the balance being at least substantially Fe and incidental elements and impurities. | 03-31-2011 |
| 20110074078 | SPRING STEEL AND SPRING HAVING SUPERIOR CORROSION FATIGUE STRENGTH - A spring steel and spring having superior corrosion fatigue strength and a strength on the order of HRC 53 to HRC 56 are disclosed. The spring steel comprises a tempered martensite and 2.1 to 2.4% Si in terms of percent by mass of the total mass of the spring steel. | 03-31-2011 |
| 20110148017 | ADJUSTING DEVICE FOR ADJUSTING STIFFNESS THEREOF - The present invention provides an adjusting device. It is used a adjusting unit to be set in advance if a stiffness demanded is known and to adjust appropriately if the stiffness demanded is unknown or changed. A changed stiffness system which can be actively or passively adjusted can be achieved by the adjusted device. Based on the above conception, the adjusting device includes a first resilient unit and the adjusting unit, wherein the first resilient unit has a characteristic gap between one end thereof and the adjusting unit. In addition, the adjusting device further includes a connecting resilient unit, wherein the length thereof is a sum of lengths of the first resilient unit and the characteristic gap. It is the present invention to adjust the length of the characteristic gap by the adjusting unit to adjust the stiffness of the adjusting device. | 06-23-2011 |
| 20110233836 | SPRING STRUCTURE - A spring structure ( | 09-29-2011 |
| 20120013059 | COMPRESSION COIL SPRING AND MANUFACTURING DEVICE AND MANUFACTURING METHOD FOR COIL SPRING - Bending deformation exceeding a yield stress is applied by winding a material on a mandrel. Coiling is performed simultaneously with the application of the bending deformation, and the load is removed after the coiling. This spring includes an outside surface region having a compressive residual stress and a compressive stress reduction region in which the compressive residual stress is reduced from the outside surface region toward the center of the material. A stress change portion at which a change from the compressive residual stress to a tensile residual stress occurs exists between the outside surface region and the center of the material. The spring further includes a tensile stress peak portion, tensile stress reduction region, and inside surface region. The inside surface region has the tensile compressive residual stress having an absolute value smaller than that of the outside surface region. | 01-19-2012 |
| 20120098179 | Multi-Canted Coils, Tubes, and Structures - Coil, tube, and other structures configured with a plurality of individual coils, internal structures, legs or extensions with each having multiple cants per coil, internal structure, leg or extension, and wherein the cants formed therein allow for a load-deflection force when each is compressed. In addition, any horizontal or moment forces are substantially reduced and/or eliminated when a downward vertical force is applied, as minimal or no torsion is created in the individual coils, legs or extensions. | 04-26-2012 |
| 20120193848 | COIL SPRING - A stress distribution state is improved and a better design is realized. | 08-02-2012 |
| 20130099435 | Coil Spring - A coil spring has an effective section that functions as a spring when a load in a coil axis direction has been applied, end turn sections that are formed on both ends of the effective section, and rising sections that are formed between the effective section and the end turn sections, wherein the rising sections are formed in such a way that, when θ1 represents the pitch angle of the rising sections and θ2 represents the pitch angle of the effective section, pitch angle θ1> pitch angle θ2 holds true in at least one of the rising sections. | 04-25-2013 |
| 20130127099 | HIGH-STRENGTH SPRING - The present specification provides a spring of greater strength. A spring | 05-23-2013 |
| 20130127100 | STEEL WIRE ROD FOR HIGH-STRENGTH SPRING EXCELLENT IN WIRE DRAWABILITY, MANUFACTURING METHOD THEREFOR, AND HIGH-STRENGTH SPRING - Provided are: a steel wire rod material for a high-strength spring, which does not undergo the increase in deformation resistance arising from the increase in hardness and can exhibit good wire-drawing processability and the like even when a heat treatment, which deteriorates productivity, is eliminated or a simplified and rapid heat treatment is employed instead; a useful method for producing the steel wire rod material for a high-strength spring; a high-strength spring produced using the steel wire rod material for a high-strength spring as a material; and others. This steel wire rod material for a high-strength spring is a steel wire rod material that has been hot-rolled already, and has a texture having a specified chemical composition and mainly composed of pearlite, wherein the average value (Pave) of the pearlite nodule size numbers and the standard deviation (Pσ) of the pearlite nodule size numbers fulfill the following formulae (1) and (2), respectively: | 05-23-2013 |
| 20130270755 | MICROALLOYED SPRING - The systems and methods described herein include innerspring assemblies or innerspring cores for use with cushioning articles such as mattresses. The innerspring core may have one or more coil springs formed from a high-carbon steel wire alloyed with one or more suitable alloying elements such as titanium and copper and capable of imparting greater strength and durability to the innerspring core. | 10-17-2013 |
| 20130285299 | SPRING HAVING EXCELLENT CORROSION FATIGUE STRENGTH - A spring has a Rockwell hardness of HRC 53 to HRC 56 and a dislocation density ρ (cm | 10-31-2013 |
| 20130292890 | HOLLOW COIL SPRING AND METHOD FOR MANUFACTURING SAME - In an end sealing step, an end is sealed by which the core material of the end of a spring member is gathered by machining. For example, a squeezing roller is moved in an axial direction as necessary, while the end of the spring member is pressed to the inside in a radial direction by the squeezing roller. As a result, the end of the spring member is sealed and therefore, it is not necessary to use another member such as a lid member. For example, the end sealing step can be immediately carried out after an inner surface processing step. In a coil forming step after the end sealing step, formation of clearance can be prevented at the end even if the end of the spring member is gripped and the spring member is wound around the rod. | 11-07-2013 |
| 20140008852 | SPRING AND MANUFACTURE METHOD THEREOF - A spring with superior fatigue resistance is provided by decreasing the material cost while simplifying the production process. Disclosed is a spring including: a composition consisting of, by mass %, 0.5 to 0.7% of C, 1.0 to 2.0% of Si, 0.1 to 1.0% of Mn, 0.1 to 1.0% of Cr, not more than 0.035% of P, not more than 0.035% of S, and the balance of Fe and impurities; a structure including not less than 95% of tempered martensitic structure; a compressive residual stress layer formed to a depth of 0.35 mm to D/4, in which D (mm) is a diameter; the compressive residual stress layer having maximum compressive residual stress of 800 to 2000 MPa; a center portion with Vickers hardness of 550 to 700 HV; and a high hardness layer with greater hardness than the center portion. | 01-09-2014 |
| 20140015179 | High Fatigue Arcuate Spring - An arcuate spring having a plurality of coils which are configured and dimensioned to provide an arcuate shape to the spring and being substantially free of internal stresses which would tend to urge the coils into linear alignment. The spring is designed to function under load conditions while maintaining its natural arcuate shape. The spring is can be heated by use of an induction heating process. | 01-16-2014 |
| 20140021666 | COMPOSITE COIL SPRING - A composite coil spring includes a coil body that extends along a coiled axis. The coil body includes a core and a plurality of fiber layers impregnated with a polymer material. The plurality of fiber layers are arranged around the core at different radial distances from the coiled axis. Each of the plurality of fiber layers extends around the coiled axis at an oblique fiber angle to the coiled axis. Each of the plurality of fiber layers includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers. The positive non-zero integer of at least one of the plurality of fiber layers is different from the positive non-zero integer of at least one other of the plurality of fiber layers. | 01-23-2014 |
| 20140035211 | CORROSION-RESISTANT RESILIENT MEMBER - A resilient member including a base material and a corrosion resistant coating disposed on the base material. The base material is cold-worked subsequent to application of the coating to the base material in order to transition the base material from having a first cross-sectional area to a second cross-sectional area. The second cross-sectional area is less than the first cross-sectional area. | 02-06-2014 |
| 20140306389 | COMPRESSION COIL SPRING AND METHOD FOR PRODUCING SAME - A compression coil spring having high durability can be provided by using an inexpensive wire material. The present invention provides a compression coil spring formed by using a steel wire material, the steel wire material made of C: 0.45 to 0.85 mass %, Si: 0.15 to 2.5 mass %, Mn: 0.3 to 1.0 mass %, Fe and inevitable impurities as a remainder, and a circle-equivalent diameter of 1.5 to 9.0 mm, wherein hardness of a freely selected cross-section of the wire material is 570 to 700 HV, and at an inner diameter side of the coil spring, unloaded compressive residual stress at a depth of 0.2 mm from a surface in an approximate maximal main stress direction in a case in which compressive load is loaded on the spring is 200 MPa or more, and unloaded compressive residual stress at a depth of 0.4 mm from surface is 100 MPa or more. | 10-16-2014 |
| 20150137438 | Method for Coating an Extension Spring - A method for coating an extension spring. A helical extension spring is provided. The extension spring has a plurality of coils disposed along a longitudinal axis between a first end portion and a second end portion with the coils touching each other in absence of force acting on the spring that is sufficient for extending the same. The spring is then extended to an extended position. In the extended position the spring has a predetermined distance between successive coils. In the extended position a coating material is disposed onto the surface of the spring such that the coating material is disposed onto a surface portion of the spring where the coils touch each other in absence of extension. | 05-21-2015 |
| 20150292052 | HIGH-STRENGTH SPRING STEEL WIRE WITH EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE, MANUFACTURING PROCESS THEREFOR, AND HIGH-STRENGTH SPRING - A high-strength spring steel wire is provided which secures excellent hydrogen embrittlement resistance even when the adding amount of alloy elements is suppressed, and has 80 area % or more of tempered martensite and 1,900 MPa or more of the tensile strength, in which a predetermined chemical composition is satisfied, with C and Si satisfying the relation of the expression (1) below, with prior austenite grain size number being No. 10 or more, and with the hydrogen absorption amount being 14.0 ppm or more. | 10-15-2015 |
| 20150330471 | DEVICE AND METHOD FOR PRODUCING A SPRING MADE OF FIBER COMPOSITE MATERIAL - The invention relates to a method for producing a spring made of fiber composite material, in which a laminate strand which is formed from fibers of fiber composite material and is impregnated with a matrix material that can be consolidated is reshaped into a spring geometry. The invention also relates to a device for carrying out the method. On the method side, it is proposed that, prior to reshaping the laminate strand ( | 11-19-2015 |
| 20160116013 | COIL SPRING AND ASSOCIATED PRODUCTION METHOD - The production of a coil spring takes place by way of a combination of two method steps, wherein the first method step consists of a twisted extrusion method and the second method step consists of a cold bending process, as in traditional spring production. | 04-28-2016 |
| 267166100 | Conical | 1 |
| 20110148018 | ASYMMETRICAL COMBINED CYLINDRICAL AND CONICAL SPRINGS - A mattress comprising asymmetrical coil springs with spring rates that provide comfort to users with different weights. The lower portion of the spring is cylindrical and the upper portion is conical or frustoconical. This arrangement causes the spring to compress with a first substantially constant spring rate for a substantial part of compression, and with a second substantially constant spring rate for a remaining part of compression. The result is a mattress that is sufficiently soft for lighter users and sufficiently firm for heavier users. | 06-23-2011 |
| 267167000 | Circular | 6 |
| 20090108511 | Variable force spring - A variable force spring that includes an elongated, pre-stressed strip of retractable spring material that is formed into coils and having a variation in cross-sectional mass along the length. In one instance, the variation in cross-sectional mass along the length of the retractable spring is achieved by varying the width of the pre-stressed spring along its length. | 04-30-2009 |
| 20090127758 | Toy rifle backlash vibration structure - A toy rifle (air soft rifle, BB-rifle) backlash vibration structure is disclosed formed of a receiver extension, a weight, a reaction spring and a buttcap spacer The weight has a front extension inserted through the frame of the toy riffle and connected to the rear end of the piston spring at the rear side of the piston so that the component parts of the backlash vibration structure doe not touch the piston during movement of the piston. The buttcap spacer is detachably fastened to the rear side of the receiver extension and mounted with an adjustment screw rod that is rotatable relative to the buttcap spacer to adjust the level of the backlash vibration from zero to the maximum. | 05-21-2009 |
| 20090174129 | HIGH-STRENGTH STAINLESS STEEL SPRING AND METHOD OF MANUFACTURING THE SAME - Provided is a high-strength stainless steel spring exhibiting a good workability and having a high load characteristic. Thus, the high-strength stainless steel spring of the invention has an chemical component containing 0.04 to 0.08% by mass of C, 0.15 to 0.22% by mass of N, 0.3 to 2.0% by mass of Si, 0.5 to 3.0% by mass of Mn, 16 to 20% by mass of Cr, 8.0 to 10.5% by mass of Ni, 0.5 to 3.0% by mass of Mo, and the balance of Fe and inevitable impurities, and when the average diameter of the coil is represented by D and further the diameter of the steel wire is represented by d in the case that cross sections of the stainless steel wire are in a complete round form or the value obtained by subtracting the average coil diameter from the outer diameter of the coil is represented by d′ in the case that the cross sections of the stainless steel wire are in a form other than the complete round form, the spring has a spring index D/d or D/d′ of 2 to 6. | 07-09-2009 |
| 20090212476 | COMPRESSION SPRINGS AND METHODS OF MAKING SAME - Compression springs, such as helical compression springs, include end portions with selectively contoured inner contact surfaces. The selective contours of the inner contact surfaces may take the form of planar, grooved, concave, or other shaped, non-circular surfaces. In addition, enough of the inner contact surface is contoured to reduce the contact stress and/or stress concentration effects on the adjacent coils when the compression spring is placed under load and the adjacent coil engages or contacts the respective end portion. The selective contouring of the end portions may be accomplished by holding the spring in a holder and moving a cutter relative to the end portion of the spring to remove the desired amount of material from the end portion. | 08-27-2009 |
| 20110198789 | SPIRAL SPRING - A spiral spring for a reclining adjustment mechanism for a vehicle seat in which ridges are formed on both ends in a direction perpendicular to a coiling direction of a surface of a spring plate member formed by a band-like steel plate having high hardness so that the ridges project from the surface, projected surfaces of the ridges are curved, and the spring plate member is spirally formed into a coil. The spring plate member has a pitch coiled structure in which a gap between an intermediate spring plate member and an inner spring plate member is formed to be smaller than a gap between an outer spring plate member and the intermediate spring plate member. An engagement piece bent in the radial direction is formed at the end of the outer spring plate member, and an engagement coiled core section is formed in the inner spring plate member. | 08-18-2011 |
| 20140131932 | CANTED COIL SPRINGS AND ASSEMBLIES AND RELATED METHODS - Canted coil spring rings each with a first plurality of coils having first coil major and minor axes; a second plurality of coils each having second coil major and minor axes; the coils of the first plurality of coils alternating with the coils of the second plurality of coils according to an alternating pattern. The spring rings having inner and outer perimeters and wherein the inner perimeter of the spring ring is defined by at least said first plurality of coils. The resulting configuration of the spring ring has improved spacing along the inner perimeter, among others, with respect to a similar canted coil spring ring having a constant coil cross section, such as a coil length with all similar coils. | 05-15-2014 |
| 267168000 | Plural, one within another | 6 |
| 20090085265 | Mechanical strut including a friction lock mechanism - 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. | 04-02-2009 |
| 20100065996 | TWO-LAYER OR MULTIPLE-LAYER COMPRESSION SPRING - 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. | 03-18-2010 |
| 20100320660 | Spring assembly and manufacturing method therefor - 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. | 12-23-2010 |
| 20110204550 | TENSION SPRING MOUNT - 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. | 08-25-2011 |
| 20130200557 | TENSION SPRING MOUNT WITH FRICTION-RESISTANT COATING - 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. | 08-08-2013 |
| 20130300044 | TELESCOPING STRUT - 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. | 11-14-2013 |
| 267169000 | Including internal brace | 1 |
| 20090243174 | COMPOSITE SPRINGS AND METHODS OF MANUFACTURE - Composite springs and methods of manufacture are described. The composite springs include a flexible core supporting multiple layers of a cured, resin-impregnated composite fiber wherein resin-impregnated composite fiber is wound or braided over the flexible core and cured on a helical mold to form a spring having a desired helical pitch, diameter and spring rate. The multiple layers of resin-impregnated composite fiber are wound or braided at ±5-90 degrees relative to the longitudinal axis of the flexible core. | 10-01-2009 |
| 267170000 | Including end thrust member | 27 |
| 20080211155 | Spring damper - A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more slots located radially to a central axis and one or more rings or bands. The rings or bands are located on the outer surface of the damper where the valve spring is located within the damper. The rings or bands are located on the inner surface of the damper where the valve spring surrounds the damper. The cross section, number and location of the slots, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application. | 09-04-2008 |
| 20080211156 | Spring damper - A damper is shown for damping the movements of a valve spring in an engine. The valve spring can be housed within the damper or the damper may be located inside of the valve spring. The damper is made from a suitable polymer and has one or more tabs or slots located radially to a central axis and one or more helical springs, rings or bands housed in the slots or between the tabs. The helical springs, rings or bands are located on the outer surface of the damper where the valve spring is housed within the damper. The cross section, number and location of the tabs, slots, helical springs, rings or bands can be adjusted depending on the particular application of the damper and the amount of damping that is desired for the particular application. The damper can also incorporate a hub or stem seal. | 09-04-2008 |
| 20090008846 | Spring Seat of Suspension - A spring seat for a suspension arranged between a vehicle body side member and a wheel side member, the spring seat supporting an end portion of a coil spring of the suspension, wherein rigidity of the spring seat in the orthogonal-to-axis direction of the coil spring is smaller than rigidity of the spring seat in the axial direction of the coil spring. | 01-08-2009 |
| 20090166940 | Spring plate for a vibration damper - A spring plate for supporting a coil spring of a vibration damper includes a metal base body and a plurality of discrete insulating segments positioned on the base body. Each insulating segment has a contact surface which contacts an end of the coil spring, and an edge part which prevents the spring from migrating radially. Each insulating segment can be replaced independently of the other insulating segments. | 07-02-2009 |
| 20090273129 | Combined deceleration and acceleration device - In a combined deceleration and acceleration device for the controlled closing and opening of, for example, furniture parts, a base part consisting of a cylinder and a guide structure is provided wherein a drag element is movably supported by the guide structure, and a piston with a piston rod is connected to the drag element which has a park position remote from the cylinder and is biased by an energy storage structure toward the cylinder for moving the piston into the cylinder in a controlled decelerating manner while carrying along the drag element and a movable part engaged with the drag element. | 11-05-2009 |
| 20130175747 | SPRING SEAT - A spring seat is interposed between a spring and a suspension arm supporting the spring. The spring seat includes a support portion for supporting the spring, and an upright partition portion disposed on one side of the spring seat in a lateral direction of the spring seat. The upright partition portion is formed integrally with the support portion for covering a side surface of the spring. The suspension arm includes a recessed portion supporting the spring, and the partition portion has a height equal to or greater than a height of the recessed portion. The partition portion includes a guide surface for upward or laterally guiding foreign matters coming from an outside of the spring seat in the lateral direction of the spring seat. | 07-11-2013 |
| 20140117602 | PEDAL SIMULATOR HAVING MULTI-STAGE SERIES SPRING - A pedal simulator using a multi-stage series spring includes a cylinder into which an operation rod connected to a brake pedal is inserted; a piston installed in the cylinder to receive a force of the operation rod; a plurality of springs installed between the cylinder and the piston to resiliently support the piston in the cylinder and disposed to overlap each other from an inner side to an outer side; and a plurality of spring seats disposed in the cylinder to overlap each other from an inner side to an outer side and configured to support the springs while being interposed between the springs, wherein the springs are installed between the piston, the spring seats, and the cylinder such that the plurality of springs are connected to each other in a multi-stage series structure. | 05-01-2014 |
| 20140159295 | SPRING SEAT MEMBER AND SPRING ASSEMBLY EQUIPPED WITH SAME - A spring seat member includes a seat body having a seat portion and a shaft portion extending from the seat portion, and attachment members attached to the seat body. The spring seat member is attached to a coil spring in a state where the attachment members are attached to the seat body. The shaft portion has a groove on the outer periphery thereof that extends in the circumferential direction. The attachment members are provided with engaging portions that engage with the groove of the shaft portion. The engaging portions are selectively and elastically deformable inward or outward in the radial direction of the shaft portion. The groove has an inner wall facing the seat portion. The inner wall has an inclined surface. The inclined surface is inclined radially outward of the shaft portion as the distance from the seat portion in an extending direction of the shaft portion increases. | 06-12-2014 |
| 20140312544 | EFFICIENT ENERGY ACCUMULATION ELEMENT FOR ACTUATORS AND OTHER DEVICES - An efficient energy accumulation element comprising compression spring which uses end caps and flexible rope to pre-compress spring for using in actuators and other devices. The efficient energy accumulation element is independent of external surfaces or end construction of spring. The accumulation and release of energy happens noiselessly. | 10-23-2014 |
| 267172000 | Including cam | 2 |
| 20080224369 | Sheathing for a Suspension Spring - A suspension assembly of a motor vehicle including a suspension spring, a sheathing to be placed on a portion of at least an end coil of the suspension spring, a center cup on which the sheathed end of the suspension spring is placed, a mechanism for indexing the angular position of the sheath with regard to the centering cup, and a mechanism for indexing the angular position of the suspension spring with regard to the sheath. | 09-18-2008 |
| 20130043629 | Spring with adjustable spring constant - A spring comprising a spring itself and end seat plates and a mount. In the spring seat plates are mechanically connected (constantly, variably, or actuable to connect) to each other and to the mount, so when a force or moment is applied to one of those seat plates its movement induce the movement of other seat plate as well, changing the total movement of the spring. Furthermore, there are provided mechanical means (a cams, a gears, a levers etc.) for changing the linkage between the end seat plates and the mount, which result in increasing, remaining the same (constant spring) or decreasing the spring constant. So, the spring constant of the spring can be controlled as to be adjustable. | 02-21-2013 |
| 267174000 | For dynamic or work environment | 3 |
| 20090230602 | Coil spring - A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end. | 09-17-2009 |
| 20110140327 | SPRING RETAINER AND SPRING SYSTEM - A spring retainer is made from an iron-based material to improve the strength and abrasion resistance of the spring retainer and reduce the thickness and weight thereof. The spring retainer includes a retainer body having a tapered support hole to be supported with a valve stem and a flange-like spring seat circumferentially formed on a periphery at a first side of the retainer body to receive and support a valve spring. The retainer body and spring seat are integrally formed from resilient steel with grain flows continuously formed from the retainer body to the spring seat. | 06-16-2011 |
| 267175000 | Adjustable | 1 |
| 20110260380 | ADJUSTABLE STIFFNESS JACK SPRING ACTUATOR - The present invention is a mechanical element, commonly referred to as a “Jack Spring” that is based upon the concept of adding and subtracting coils from a spring. In particular, with the method and apparatus of the present invention, by changing the number of coils in a spring, the actual or intrinsic stiffness of the spring is structurally changed. A very simple and practical method is used to adjust the number of coils. The Jack Spring actuator of the present invention is based upon adjusting the effective structure of a spring. | 10-27-2011 |
| 267177000 | Adjustable | 5 |
| 20100059913 | ADJUSTABLE TENSION SPRING ANCHOR WITH ROTATABLE HEAD - An adjustable tension spring anchor with rotatable head. A flanged head is rotatably mounted to a threaded cylinder mounted to a first element. The rotatable head is connectable to one end of a tension spring having its opposite end attached to a second element. A pair of mutually opposed flat surfaces on the cylinder and a socket at the end of the cylinder allows the cylinder to be rotated to adjust tension without twisting of the attached spring. | 03-11-2010 |
| 20110187036 | ADJUSTABLE STIFFNESS SPRING - A mechanical arm comprises a forearm, a spring, and an upper arm disposed between the forearm and the spring, wherein the forearm applies a moment to the upper arm. A translation device associated with the upper arm translates a force associated with the moment to the spring. The spring is adapted to apply a counter-force resisting at least a portion of the moment to reduce a torque for urging the forearm. | 08-04-2011 |
| 20120286462 | PRELOADED DUAL-SPRING ASSEMBLY - The present invention relates to dual-spring assembly that may be employed in cooperation with a damper unit to form a shock absorber. The spring rate of at least one of the springs is adjustable with a preload mechanism, which in turn is movable relative to the damper unit. Further, the dual-spring assembly includes two compression springs arranged in series and each having selected, but different spring rates. The first spring primarily absorbs the energy of applied loads that are below a first amplitude or threshold of applied load. Once the applied loads exceed the first amplitude of applied load, the dual-spring assembly operates with an effective spring rate to absorb the energy of applied loads that exceed the first amplitude of applied load. After a second spring of the dual-spring assembly achieves a desired amount of deflection, the first spring continues to absorb energy from the applied loads. | 11-15-2012 |
| 20130087956 | Extension Spring Installation Mechanism - A spring installation mechanism includes a bracket fixed against displacement, a spring that extends along an axis and includes first and second ends, the second end being fixed against displacement, a retainer secured to the first end and including helical threads, and a screw including a shank having helical threads engaged with the threads of the retainer, axial displacement of the screw toward the retainer limited by contact with the bracket, said contact permitting rotary displacement of the screw relative to the retainer and the spring. | 04-11-2013 |
| 20140077429 | SPRING ASSEMBLY AND METHOD - A method of assembling a spring inside of a tube includes providing a coil spring and a tube having a first retaining structure at a first end of the tube. The method includes positioning a rod in the tube. The spring is positioned in the tube, and a second retaining structure is attached to the rod with the spring positioned between the first and second retaining structures. A force is applied to the spring, and the second retaining structure is fixed at a position wherein the spring provides a desired preload. | 03-20-2014 |
| 267178000 | Support type | 2 |
| 20080246202 | Spring screw assembly - A spring screw assembly includes a screw, an inner tube having a spring mounted therein, and a retainer tube being covered by a color coat. The inner tube is axially movably assembled into the retainer tube, and the screw may be extended into the retainer tube and the inner tube to extend through the spring with a rack portion near an upper end of the screw tightly engaged with an upper open end of the retainer tube. Therefore, screws of different sizes and retainer tubes with different color coats may be separately kept in stock, and screws meeting customer specifications may be assembled to retainer tubes having colors meeting customer color management system at a later time to complete the desired spring screw assemblies. | 10-09-2008 |
| 20080290572 | Variable-Flexibility Spring Support - A support element for a motor vehicle suspension spring, including a main part and a substantially rigid or semi-rigid insert. The suspension spring bears directly on the substantially rigid or semi-rigid insert. | 11-27-2008 |
| 267179000 | Particular end connection | 6 |
| 20080237955 | SPRING SEAT AND DAMPER DISK ASSEMBLY - Second spring seats | 10-02-2008 |
| 20090134559 | Spring Assembly - To provide a spring assembly whose production cost is low. | 05-28-2009 |
| 20130038007 | ENERGY-ABSORBING ELEMENT AND RELATED PRETENSIONING FLANGE - The invention essentially relates to an energy-absorbing element ( | 02-14-2013 |
| 20130334750 | SPRING ASSEMBLY - A supporting projection is formed on a resin base plate on which a seat winding portion of a coil spring is fitted. The supporting projection has such rigidity that a distal end portion does not deflect against a spring force applied radially inwards from the seat winding portion of the coil spring. On the other hand, an elastic deflectable area which deflects elastically by the spring force applied radially outwards from the seat winding portion of the coil spring is formed in an area which extends from a proximal end to the distal end portion of the supporting projection. | 12-19-2013 |
| 20140159296 | SPRING SYSTEM FOR AN AIRCRAFT - A spring system includes at least one spring and at least one spring receiver including at least one lug head to which the spring is attachable or is attached, wherein the lug head includes a thread onto which the spring can be screwed on or is screwed on, and the thread includes at least one thread portion including a thread pitch in the range of an operating pitch of the spring. | 06-12-2014 |
| 20140353892 | SPRING RETAINER FOR A TORSIONAL VIBRATION DAMPER AND METHOD OF PRODUCING A SPRING RETAINER - A spring retainer for a torsional vibration damper, including: first and second oppositely facing sides; at least one curved portion forming at least part of a radially outermost portion of the spring retainer and including: at least a portion of the first side enclosing at least one space and including at least one indentation extending in a circumferential direction; and at least a portion of the second side including at least one protrusion extending in the circumferential direction. | 12-04-2014 |
| 267180000 | Irregular | 6 |
| 20110031667 | COIL SPRING WITH IRREGULAR CROSS SECTION - A coil spring with irregular cross section according to the present invention is made by subjecting a coil wire having an irregular cross section to a fatigue-strength improving treatment including a shot peening treatment after coiling the coil wire into a spring configuration, and the coil spring with irregular cross section has a vertical cross-sectional profile whose coil inner-peripheral-side section is expressed by following Equation (1) and Equation (2) in a polar coordinate system and orthogonal coordinate system: | 02-10-2011 |
| 20110068523 | LONGITUDINAL CANTED COIL SPRING CONTACTS TO FACILITATE ASSEMBLY - A canted coil spring includes a first section having a plurality of first canted coils generally canted at an acute first angle relative to a first direction of a centerline extending through the first canted coils, and at least a second section coupled to the first section and having a plurality of second canted coils generally canted at an acute second angle relative to a second direction of the centerline extending through the second canted coils. The second direction is opposite to the first direction when the centerline is in a linear configuration. A method of manufacturing the canted coil includes fabricating a first wire section in a canted helical configuration thereby forming the plurality of first coils, and fabricating at least a second wire section in a canted helical configuration thereby forming the plurality of second coils. The first wire section is coupled to the second wire section. | 03-24-2011 |
| 20110169205 | Plastic Spring And Method And Apparatus For Making The Same - This invention provides a helical spring formed of plastic material, comprising a pair of end coils situated at respective ends of said helical spring; at least one full pitch active coil between said pair of end coils; a pair of transition coils, each transition coil interconnecting an end of a respective end coil to an end of a respective proximate full pitch active coil, and having a varying pitch. | 07-14-2011 |
| 20120112396 | SPRING COILS FOR INNERSPRING ASSEMBLIES AND METHODS OF MANUFACTURE - A progressive spring coil comprises a first spring portion comprising a top end and a bottom end and having a first spring rate, wherein the first spring rate is substantially linear or substantially nonlinear; a second spring portion comprising a top end and a bottom end and having a second spring rate, wherein the second spring rate is substantially linear or substantially nonlinear; and a third spring portion disposed between the first spring portion and the second spring portion, wherein the third spring portion has a third spring rate, wherein the third spring rate is substantially linear or substantially nonlinear. | 05-10-2012 |
| 20130062821 | COIL SPRING FORMING APPARATUS AND COIL SPRING FORMED THEREBY - A coil spring forming apparatus including a core bar | 03-14-2013 |
| 20150084251 | HIGH TENSION COIL-SPRING FOR BED MATTRESS HAVING MEANS FOR PREVENTING FRICTIONAL NOISE - A high tension coil spring for a bed mattress having an exposed wiring portion which is formed on the coil spring and works together with a body spring to absorb an external load. A gap A is provided on at least one of upper and lower end wiring portions | 03-26-2015 |
