Abstract: A spring actuated rocking mechanism can be attached to the legs of a collapsible chair to allow for the user to rock in the collapsible chair. The mechanism may be attached at the factory or retrofitted to the chair. The rocking mechanism can be attached to the end of a leg or disposed within a leg, having a leg portion above and below the mechanism.

Abstract: A progressive release or multi-point engagement device according to aspect of the present disclosure includes a first component and a second component connected to the first component with mounted coil spring. The first component is movable relative to the second component and latch by moving the canted coil spring to a second common groove. Alternatively, a second spring is used to move the second component and relative to a third component. When a second engagement position is desired, a relatively higher a force may be necessary to move the relevant component.

Abstract: Disclosed herein is a method of making a spring core (12) for a bedding or seating product (10). The spring core (12) has coil springs (26) having unknotted end turns (72, 74) made from high tensile strength wire. In each embodiment, the end turns (72, 74) of the coil springs (26) are generally U-shaped having one arcuate leg (76) longer than the other (78), the legs (76, 78) being joined by a connector (80) having an arcuate bump (81) therein. The springs (26) are oriented in the spring core (12) such that a long leg (76) of one end turn (72) abuts a short leg (78) of the adjacent end turn (72) prior to being wrapped in helical lacing wire (32). The high tensile wire enables the coil springs (26) to be manufactured using less wire than heretofore possible.

Abstract: Disclosed herein is a method of making a spring core (12) for a bedding or seating product (10). The spring core (12) has coil springs (26) having unknotted end turns (72, 74) made from high tensile strength wire. In each embodiment, the end turns (72, 74) of the coil springs (26) are generally U-shaped having one arcuate leg (76) longer than the other (78), the legs (76, 78) being joined by a connector (80) having an arcuate bump (81) therein. The springs (26) are oriented in the spring core (12) such that a long leg (76) of one end turn (72) abuts a short leg (78) of the adjacent end turn (72) prior to being wrapped in helical lacing wire (32). The high tensile wire enables the coil springs (26) to be manufactured using less wire than heretofore possible.

Abstract: An apparatus is disclosed for the manufacture of a coil spring from a wire. The apparatus comprises first and second tools for contacting the wire prior to, and/or during, deformation of the wire into a coil spring. The apparatus includes means for applying an electrical potential difference between the first and second tools such that an electric current is caused to flow through at least part of the wire during use.

Abstract: Synchronization apparatus (6) having at least two actuating apparatuses (100, 200) for moving a movable furniture part (3) and having a synchronization rod (5) for synchronizing the movement of the at least two actuating apparatuses (100, 200), wherein a first end region of the synchronization rod (5) can be connected to a first rotary part (102) of the first actuating apparatus (100), and a second end region of the synchronization rod (5) can be connected to a second rotary part (202) of the second actuating apparatus (200), characterized in that at least one rotary part (202) of the actuating apparatuses (100, 200) has a sprung contact-pressure part (207) which bears against the end face of the synchronization rod (5).

Abstract: A spring assembly includes telescopically adjustable inner and outer members biased in an extension direction by a coil spring. A preload member is provided to apply a compression preload to the coil spring. The preload member can eliminate stickiness and the popping sound that are drawbacks of the prior art, and the fabric sleeve also provides general noise reduction when the spring assembly changes length.

Abstract: A jewelry item includes an ornament, a coil with a plurality of turns, and a pad. The pad includes a central bore configured for receiving the helical coil. A compressive force between adjacent turns of the helical coil couples the jewelry item to a body part. The jewelry item can be an earring.

Abstract: 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.

Abstract: A resilient unit suitable for providing comfort, convenience, support or protection is described. The unit typically takes the form of a pad comprising a plurality of pocketed coil springs arranged in an array, each spring being substantially encased in an individual pocket, and the unit being compressible in the axial direction of the springs, wherein each spring comprises a number of coils, and in respect of at least some springs the coils at opposed ends are of different diameter.

Abstract: A method of forming a pocketed spring unit (10), comprising a plurality of pocketed spring portions (22, 24, 26) arranged in a row, is described. The pocketed spring portions each comprise a portion of coil spring encased in a pocket (32, 34, 36), wherein the axis of the spring is substantially transverse to the row. The method comprises the steps of: forming a continuous coil spring, encasing the spring in a pocket and deforming the encased spring to form the pocketed spring portions.

Abstract: A mattress includes a first spring unit having a first degree of firmness, a second spring unit having a second degree of firmness different from the first degree of firmness, and a transition zone that is disposed between the first and second spring units. A foam perimeter surrounds the first and second spring units and the transition zone. The transition zone has a first row of springs adjacent to the first spring unit and has a degree of firmness between the first and second degrees of firmness that is closer to the first degree of firmness than the second degree of firmness. The transition zone also has a second row of springs adjacent to the second spring unit and has a degree of firmness between the first and second degrees of firmness that is closer to the second degree of firmness than the first degree of firmness.

Abstract: A spring assembly includes telescopically adjustable inner and outer members biased in an extension direction by a coil spring. A non-stretch fabric sleeve fitted about an inner diameter and an outer diameter of the coil spring is closed at its opposite ends to apply a compression preload to the coil spring. The fabric sleeve prevents transmission of the preload to the inner and outer telescoping members, thereby eliminating stickiness and the popping sound that are drawbacks of the prior art, and the fabric sleeve also provides general noise reduction when the spring assembly changes length.

Abstract: A method of attaching a seat cushion to a seat frame includes the steps of providing a spring latch having a spring portion and a brace portion, engaging a spring leg of the spring portion with the seat frame, attaching a cushion engaging leg of the brace portion to the seat cushion, and receiving a brace leg of the brace portion into a lock formation on a locking leg of the spring portion.

Abstract: Disclosed herein is a method of making a spring core (12) for a bedding or seating product (10). The spring core (12) has coil springs (26) having unknotted end turns (72, 74) made from high tensile strength wire. In each embodiment, the end turns (72, 74) of the coil springs (26) are generally U-shaped having one arcuate leg (76) longer than the other (78), the legs (76, 78) being joined by a connector (80) having an arcuate bump (81) therein. The springs (26) are oriented in the spring core (12) such that a long leg (76) of one end turn (72) abuts a shortleg (78) of the adjacent end turn (72) prior to being wrapped in helical lacing wire (32). The high tensile wire enables the coil springs (26) to be manufactured using less wire than heretofore possible.

Abstract: A method for enhancing an initial tension by changing a wound direction of a coil spring. A large and precise initial tension is provided to the coil spring. An actuator having an excellent function is prepared by using a shape memory alloy. Each shape of the coil spring at high and low temperatures can be controlled by a flexible shape memory effect.

Abstract: Method for manufacturing a filling material, characterised in that it consists at least in providing cylindrical foam springs (14) between two support layers (2,9) and in fixing them to the latter, for example by gluing the crosscut ends (15) to the support layers (2,9), after which the thus obtained double-coated layer (16) is cut, through the support layers (2,9), in two single-coated layers which each mainly consist of a single support layer (2, 9) with shorter foam springs (14) connected thereto.

Abstract: A connecting element for a spinal column stabilization system includes a first attachment section for fixing to a first bone attachment device, a second attachment section for fixing to a second bone attachment device and an at least partially flexible intermediate section. The intermediate section is arranged between the first and the second attachment section and is in the form of a strip-like, winding leaf spring element having at least one recess. A desired spring stiffness is maintained as precisely as possible, especially in the intermediate section independently of possible manufacturing tolerances arising from the manufacturing process. At least one of the two leaf spring element surfaces of the leaf spring element includes at least one stiffness-modifying element. The connecting element may be part of an improved spinal column fixation system and made by an improved method of manufacturing a connecting element.

Abstract: Spring cushions (10) having slow-acting pocketed spring cores (12) characterized by the individual springs of the cores (12) being pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores (12). Fibrous material is located between adjacent rows of pocketed springs to reduce noise.

Abstract: Spring cushions (10) having slow-acting pocketed spring cores (12) characterized by the individual springs of the cores (12) being pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores (12). Cushioning material is located between adjacent rows of pocketed springs to reduce noise.

Abstract: Disclosed herein is a bedding or seating product (10) having a spring core (12) comprising coil springs (26) having unknotted end turns (72, 74) made from high tensile strength wire. In each embodiment, the end turns (72, 74) of the coil springs (26) are generally U-shaped having one arcuate leg (76) longer than the other (78), the legs (76, 78) being joined by a connector (80) having an arcuate bump (81) therein. The springs (26) are oriented in the spring core (12) such that a long leg (76) of one end turn (72) abuts a short leg (78) of the adjacent end turn (72) prior to be wrapped in helical lacing wire (32). The high tensile wire enables the coil springs (26) to be manufactured using less wire than heretofore possible.

Abstract: The mattress assemblies have an array of springs extending from a sheet. Each spring in the array may be manufactured by choosing a position for the spring, cutting a profile of the sheet spring in the sheet, peeling back or bending the profile or tab of the sheet, and shaping the profile to form the sheet spring. The array of springs may be formed from creating a plurality of such springs along rows and columns. In certain embodiments, multiple sheets may be stacked to form the sheet spring array.

Abstract: A foam spring for use in pillows, cushions, mattresses or the like, the foam spring having a tubular resilient body (2) made of foam and forming an outer wall, with holes (3) extending inwardly from an outside surface (4) to an inside surface (5), those holes (3) being arranged in a staggered symmetry and mainly being diamond shaped, characterized in that the tubular body (2) displays said holes (3) only over a limited part (16) of its surface (4), and that this limited part (16) is regularly alternating with a limited part (18) of the surface (4) that is not provided with said holes (3) and which forms longitudinal reinforcement ribs (7) in the wall of the tubular body (2) of the spring (1).

Abstract: A gas spring device includes a pair of gas springs disposed parallel and adjacent one another. Each of the gas springs has a piston extendable in an opposite direction from the piston of the other gas spring. An adjustable coupling joins the pair of gas springs together and is adjustable to selectively position one of the gas springs along a longitudinal length of the other gas spring in order to adjust the overall piston-to-piston length of the gas spring device. Additionally, an inclinable chair can include the gas spring device to allow a chair frame to be selectively positioned at a desired angle of inclination with respect to a base frame.

Abstract: A method for manufacturing a filter device having filter means, in particular hollow-fibre membranes, arranged in more than one filtration compartment within a filter housing. For example a dialysis type filtration process such as haemofiltration or haemodiafiltration or haemodialysis may be carried out at the same time as an ultrafiltration process or as another haemofiltration, haemodiafiltration or haemodialysis process. A split shell is bonded or welded together along longitudinal seams. Internal separating walls within the housing are formed integrally with the shell portions of the housing to form adjacent filtration compartments when the housing portions are joined together.

Abstract: A manufacturing method for a composite coil spring includes the following steps: preparing a mold, winding a coil former around a mandrel of the mold, winding composite material pre-preg, compressing and heating, opening the mold and detaching the mandrel and the coiled coil former.

Abstract: An apparatus for the production of pocketed coil springs is disclosed. The apparatus includes a coiling section in which a coil is formed from wire fed to the coiling section, the coiling section including coiling elements, whose position and/or orientation determines the form of the coil, and an encapsulation section in which the coil is inserted between juxtaposed sheets of material and in which the sheets of material are joined together to form a pocket enclosing the coil. The apparatus further includes programmable control means operably linked to the coiling elements in such a way as to control the position and/or orientation of the coiling elements.

Abstract: A cardiac harness configured to be fit around at least a portion of a patient's heart, including a conductive material that is coated with a dielectric coating to electrically insulate at least the heart tissue from the conductive material. The cardiac harness applies a compressive force on the heart during diastole and systole. The cardiac harness includes an arrangement that provides no electrical continuity circumferentially about the harness, so that if an electric current created by a defibrillation device is applied to a patient who has a harness that is placed on their heart, the electric current will pass through the heart unimpeded instead of being conducted around the heart through the harness.

Abstract: A method and apparatus for forming spring units for use in a mattress, bed, divan bed, or other upholstered unit, the method including the step of inserting a second spring (12A) into a first spring immediately prior to said first spring being formed into a pocketted spring. The second spring (12A) may be formed into a pocketted spring prior to insertion into said first spring. The apparatus includes means (4) for feeding a second spring (12A) to a composite spring forming station (6) immediately prior to a first spring being fed to said station, means to compress and rotate the formed composite spring (30) through substantially 90°, means to insert the composite spring into a sleeve of material, and means to form said composite spring and a portion of said sleeve into a pocketted spring unit.

Abstract: A gel composition that displays changes in temperature through color changes, characterized in that the gel composition can show changes in temperature by changing its color and the entire color of the composition will change when there is a 2 degree centigrade change in its immediate environment. The method of manufacturing the gel composition includes the steps of: mixing 75% of water by weight with 25% of vinyl alcohol by weight and stirring well the mixture of water and vinyl alcohol, heating the mixture to 70 degrees centigrade to form a gel material, adding temperature sensitive colorant into the gel material and completely dissolving the colorant into the gel material, and filing the gel material into a transparent pocket made of TPU/PVC/EVA film and sealing the pocket.

Abstract: A system and method for manufacturing pocketed compound nested coil springs includes inserting a compressed, preferably pocketed, smaller coil spring into a vertically oriented larger coil spring either prior to compressing and inserting the outer coil spring into pocket material or after the larger coil spring has been compressed and prior to being encapsulated in the pocket. Alternative systems and methods are also contemplated which include forming the outer coil spring around the inner coil spring and pocketing the resulting nested spring unit.

Abstract: An apparatus and method are provided for applying clips to mattress spring assemblies in a highly accurate and fast manner via operating or positioning members that properly position the innerspring coils relative to the borderwires for clipping thereof. Improperly positioned innersprings have their end coils shifted past the borderwires as they travel downstream to be clipped by the apparatus and method herein. In this manner, the positioning members are operable to use the progression of the spring assemblies as they are driven downstream to properly position the innerspring coils relative to the borderwires for being clipped thereto.

Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.

Abstract: A seating product comprising a plurality of sinuous spring assemblies secured at opposite ends to a frame. Each of the sinuous spring assemblies comprises length of webbing having a pair of opposed end portions which are secured to the frame and a sinuous spring. The length of webbing is intertwined with the sinuous spring. The sinuous spring is secured at opposite ends to the length of webbing. Padding and an upholstered covering complete the seating product.

Abstract: A method of assembling strings of pocketed coil springs into an innerspring core which may be used as the core of a mattress, cushion or similar body support foundation uses plastic netting reinforced nonwoven webs supplied between a pair of spaced apart heated rolls. Strings of pocketed coil springs are fed in seriatim into the nip between the rolls to heat the netting and activate an integral adhesive to bond the webs to the top and bottom surfaces of the pockets of each string. The core formed thus has reinforced webs on the top and bottom of the strings. The process overcomes the problems encountered when hot melt spraying is utilized to bond the pocketed coil strings together.