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| Number | Title | Issue Date |
| 7178187 | Asymmetric spring components and innersprings for one-sided mattresses Asymmetric spring components for mattress and other flexible support structures, in the form of helical coil springs with turns in the coil body having varying pitch angles and radii, and a single support end for use in a one sided innersprings in one-sided mattress... | 02/20/2007 |
| 7086425 | Device for orienting springs The device for aligning springs (7) on transport from a spring winding machine to a spring interior assembly automatic machine comprises at least one rotary plate pair (17) which rotates about a rotary axle (B) and is drivably mounted about a rotary ax... | 08/08/2006 |
| 6910360 | Multiple wire feed for spring coiling machine and method An apparatus for making mattress and upholstery spring coils. The apparatus has a wire feeding device and a wire guide adapted to support first and second wires of different diameters. The wire guide is movable to first and second positions to align the first and se... | 06/28/2005 |
| 6758079 | Coil spring forming machine A coil spring forming machine for forming a coil spring having a dimensional characteristic, such as a coil diameter and a coil pitch, includes a frame, a control tool movably mounted on the frame, and a control mechanism mounted on the frame and coupled to the cont... | 07/06/2004 |
| 6698459 | Coil spring assembly machine An apparatus for assembling coil springs together into a matrix of coil springs. The apparatus has workholders with respective grippers that receive and hold portions of end turns of respective coil springs, and a loader supporting the workholders for mov... | 03/02/2004 |
| 6694585 | Apparatus and method for securing end turns of coil springs to a border wire The apparatus has an indexable carriage adapted to move the coil springs and the border wire along a path. A wire cutter disposed adjacent the path has an inner member with an axial hole adapted to receive the wire and a tubular outer member receiving the... | 02/24/2004 |
| 6640836 | Coil and coil head formation dies for coils with non-conventional terminal convolutions Machinery for automated manufacture of formed wire structures such as innerspring assemblies for mattresses and seating and flexible support structures includes one or more coil formation devices configured to produce generally helical spring coils having... | 11/04/2003 |
| 6584823 | Two wire spring making machine and method A method and machine for selectively manufacturing wire springs from two different wires by feeding the wires through a pair of continuously rotatable opposed feed rollers, which rollers are operative to feed only one of the wires at a time into engagemen... | 07/01/2003 |
| 6430982 | Coil spring forming and conveying assembly Disclosed herein is a coil spring forming head which is periodically operative to at least partially form coil springs having a plurality of coils and which includes a wire feed advancing mechanism operative to feed the wire which is formed into coil spri... | 08/13/2002 |
| 6408514 | Manufacture of pocketed compound nested coil springs 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 sp... | 06/25/2002 |
| 6318416 | Spring interior and method of making same The spring interior 10 comprises springs 12 with different spring constants (hardness). The variation of the spring constant is effected by changing the average radius of the windings 13 between the central winding 15 and the two end rings 14 of each indi... | 11/20/2001 |
| 6155310 | Machinery for automated manufacture of formed wire innerspring assemblies Machinery for automated manufacture of formed wire structures such as innerspring assemblies for mattresses and seating and flexible support structures includes one or more coil formation devices configurable to produce generally helical spring coils havi... | 12/05/2000 |
| 5988253 | Press holding mechanism for use in pocket coil spring structure assembling apparatus A pocket coil spring structure assembling apparatus includes a feeder mechanism for supplying a group of pocket coil springs to a positioning transfer conveyor. A positioning transfer conveyor mechanism conveys the group of the pocket coil springs supplie... | 11/23/1999 |
| 5950473 | Coil spring forming and conveying assembly Disclosed herein is a coil spring forming machine and transfer conveyor assembly comprising a transfer conveyor operable through a succession of operational cycles and including and endless conveyor assembly and a conveyor drive servo-motor drivingly conn... | 09/14/1999 |
| 5934339 | Varied coil spring interior forming method and apparatus A method and an apparatus are provided for producing sequences of coil springs of more than one configuration, such as those differing in stiffness, shape, size or other property. At least two coiling stations are provided around different positions of a ... | 08/10/1999 |
| 5792309 | Pocket coil spring structure assembling apparatus A pocket coil spring structure assembling apparatus for producing a pocket coil spring structure which includes a feeder mechanism to supply a group of pocket coil springs to a positioning transfer conveyor mechanism; a cutting mechanism between the feedi... | 08/11/1998 |
| 5788051 | Device for transferring springs to an assembly machine Device for transferring springs to an assembly machine, wherein the sprints to be transferred are retained in a guide device wherein for the transfer of the springs sliders are provided engaging at the end winds of the springs.... | 08/04/1998 |
| 5782273 | Dual lacing wire mechanism for a coil spring assembly machine A coil spring assembly machine for lacing coil springs together to form a coil spring assembly, which machine includes clamping jaws for clamping together portions of adjacent rows of coil springs in at least one of a top and bottom plane of the coil spri... | 07/21/1998 |
| 5713400 | Coil spring interior assembly method and apparatus A spring interior assembly method and apparatus produces spring interiors formed of a plurality of longitudinally connected columns of spring coils. Preferably, the spring interiors are formed as continuous wire bands each of alternating coils and bridgin... | 02/03/1998 |
| 5579810 | Coil spring interior assembly method and apparatus A spring interior forming method and apparatus provides a spring interior assembler and a coil row transfer station upstream of the assembler having at least one conveyer extending therethrough. A coil former is provided at an upstream end of the conveyor... | 12/03/1996 |
| 5444905 | Apparatus for manufacturing mattresses and box springs An apparatus for forming springs for incorporation into an innerspring mattress is disclosed. The apparatus includes the use of change gears to facilitate the manufacture of a variety of innerspring sizes.... | 08/29/1995 |
| 5139054 | Spring interior forming and assembling apparatus An apparatus for forming and assembling spring interiors is provided in which, in the preferred embodiment, adjustable reforming dies adjacent a cutting station lengthen the supporting structure of a bridging portion of the coil band that interconnects co... | 08/18/1992 |
| 5105642 | Continuous coil spring forming method Multiple coil springs, particularly springs of alternating right and left hand coils, are formed from a continuous wire, interconnected by spring heads formed of straight lengths of the wire, by a coiler having a stationary forming head which with a pair ... | 04/21/1992 |
| 5042124 | Machine for punching out butterfly clips for fastening to a frame of a spring core A machine in which butterfly clips are prebent and then punched out of steel strip and simultaneously finally bent, such that they fasten together a spring and the frame of a spring core. Thus, both the punching out of the clip and the final bending proce... | 08/27/1991 |
| 4886249 | Spring bands for incorporation in spring units A known kind of spring unit, for use in mattresses, seats and the like, is made as an assembly of spring bands which are disposed side by side and a plurality of helical wires (5,6) which extend transversely to the bands and are linked to them. Each sprin... | 12/12/1989 |
| 4829643 | Apparatus and method for automatically securing borderwires on mattress innersprings Apparatus for automatically securing borderwires on mattress innersprings, including a support member for maintaining a mattress innerspring and borderwires on edge in a substantially upright position as clips are automatically wrapped along the supported... | 05/16/1989 |
| 4815182 | Apparatus and method for automatically securing borderwires on mattress innersprings Apparatus for automatically wrapping clips on the borderwires and coils of a mattress innerspring which includes an adjustable alignment mechanism and adjustable clip wrapping tool mechanism for enabling the apparatus to accommodate borderwires and mattre... | 03/28/1989 |
| 4726106 | Method and apparatus for forming a row of spring coils from a continuous length of wire A single continuous length of wire is formed into a continuous length spiral or helix, which is subsequently placed onto a moving chain conveyor having pins upstanding therefrom. The helix then is folded into a wave configuration for establishing a row of... | 02/23/1988 |
| 4726572 | Spring coil and spring assembly A spring coil has an open-ended terminal convolution which is connected to the body of the coil through a gradient arm. The gradient arm can be readily varied in length in manufacture to alter the compression and thereby the firmness of the spring coil. O... | 02/23/1988 |
| 4724590 | Apparatus and method for automatically securing borderwires on mattress innersprings Apparatus for automatically securing borderwires on mattress innersprings, comprising support members for receiving borderwires and a mattress innerspring in stacked, properly oriented relation to one another. A drive mechanism is provided for automatical... | 02/16/1988 |
| 4705079 | Bedding coil spring unit and assembly method The coil spring assembly method comprises forming a series of coil spring rows, each row being formed from a single continuous length of spring wire. Each intermediate spring within a row has an adjacent coil spring on one side directly connected at one e... | 11/10/1987 |
| 4699362 | Spring element A spring element for bedding and furniture which can be constructed in a simple manner but will not tend to come apart in ordinary use. The spring element includes a laterally extending pair of parallel wires and a longitudinally extending pair of paralle... | 10/13/1987 |
| 4686753 | Coil spring assembly machine A machine for connecting successive rows of coil springs together into a coil spring assembly. The machine, in preferred form, initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto ... | 08/18/1987 |
| 4593726 | Coil spring assembly machine A machine for connecting rows of coil springs together into a coil spring assembly. The machine initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto a support platen. While transpo... | 06/10/1986 |
| 4553572 | Coil spring assembly machine A machine for connecting successive rows of coil springs together into a coil spring assembly. The machine, in preferred form, initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto ... | 11/19/1985 |
| 4548241 | Coil spring assembly machine A machine for connecting successive rows of coil springs together into a coil spring assembly. The machine, in preferred form, initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto ... | 10/22/1985 |
| 4492298 | Coil spring assembly machine A machine for connecting rows of coil springs together into a coil spring assembly. The machine initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto a support platen. While transpo... | 01/08/1985 |
| 4472849 | Bedspring assembly with novel border wire and method of forming the latter An inner spring assembly embodying a generally channel-shaped border wire of the type which is provided with a continuous groove with straight sides and into which the end convolutions of the helical bedsprings of the assembly project in tangential fashio... | 09/25/1984 |
| 4413659 | Apparatus for feeding spiral wire springs from coiling machines to a spring core assembly machine Rows of springs are periodically supplied to a mattress spring core assembly machine 7 by a transfer system 6. The springs are taken, in turn, from one of two conveyor belt pairs 4, 5 by the transfer system. The individual springs are produced by spring c... | 11/08/1983 |
| 4406391 | System for accumulating and handling strips of pocketed springs A system is provided for handling a strip of pocketed coil springs in an organized manner. An accumulator bin receives the strip from a conveyor assembly which oscillates about a pivot axis to feed the strip evenly across the width of the bin. The bin is ... | 09/27/1983 |
