| Patents for B68G 9 - Placing upholstery springs in pockets; Fitting springs in upholstery (479) |
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| 08/24/2005 | EP1565089A1 Pocket mattress with varying height |
| 08/02/2005 | US6922895 Apparatus for the production of pocketed coil springs |
| 06/23/2005 | WO2005055771A1 Separated pocket spring mattress with cut through string, and a method and apparatus for prodcution of such mattress |
| 06/15/2005 | EP1539636A1 Method of construction of mattresses from mass produced and simultaneously pocket encapsulated springs and mattress produced by this method |
| 04/27/2005 | CN1198746C Method for forming package spring string long belt |
| 03/23/2005 | CN2687098Y Stepped back-stack-sealed hagged spring conveying drum device |
| 03/23/2005 | CN2687097Y Conveyer-belt lifting mechanism of semi automatic bagged spring sticking machine for mattress |
| 03/23/2005 | CN2687096Y Spring-mounting-feeding mechanism of semiautomatic bagged spring sticking machine for mattress |
| 03/16/2005 | EP1337357A4 Coil and coil-head formation dies for coils with non-conventional terminal convolutions |
| 03/09/2005 | EP0928283A4 Method and apparatus for forming pocketed springs |
| 03/01/2005 | CA2197647C Conditioning pocketed coil springs |
| 01/19/2005 | CN2672028Y Automatic string spring holder |
| 12/28/2004 | US6834477 Method and system for forming strings of pocketed coil springs with traction mechanism |
| 11/10/2004 | EP0970318B1 Multiple rate coil spring assembly |
| 10/27/2004 | EP1171377B1 Method and system for forming strings of pocketed coil springs |
| 10/27/2004 | EP1163188B1 Method and apparatus for manufacturing innerspring assemblies |
| 09/22/2004 | CN1167605C Internal springs assembly |
| 09/08/2004 | CN1165485C Apparatus for the production of pocketed coil springs |
| 07/28/2004 | CN1158960C Multiple firmness mattress |
| 06/22/2004 | US6751933 Method and device for turning and relaxing springs |
| 06/03/2004 | US20040103618 Method and system for forming strings of pocketed coil springs with traction mechanism |
| 05/13/2004 | WO2004039215A1 Pocket mattress with varying height |
| 05/06/2004 | EP1194368B1 Retracted pocket spring mattress; method for manufacturing of a pocket spring mattress and device for pre-tensioning pocketed coil springs |
| 03/17/2004 | EP1397294A1 Method and system for forming strings of pocketed coil springs with traction mechanism |
| 03/11/2004 | WO2004020327A1 Method of forming pocketted springs |
| 03/02/2004 | US6698166 Pocket spring assembly and methods |
| 02/25/2004 | CN1478053A Separated pocket spring mattress |
| 02/24/2004 | CA2185526C Apparatus for manufacturing mattresses and box springs |
| 02/19/2004 | WO2004014783A1 Method of construction of mattresses from mass produced and simultaneously pocket encapsulated springs and mattress produced by this method |
| 02/18/2004 | CN1476360A Coil and coil-head formation dies coils with non-conventional terminal convolutions |
| 02/12/2004 | US20040025257 Separated pocket spring mattress |
| 02/11/2004 | EP1387814A1 Method and device for transporting nested springs to a spring-core assembly device |
| 02/03/2004 | US6684608 Spring units for mattresses and the like |
| 11/04/2003 | US6640836 Coil and coil head formation dies for coils with non-conventional terminal convolutions |
| 10/29/2003 | EP1355847A1 Separated pocket spring mattress |
| 10/08/2003 | EP1026977B1 Device for slotting the intermediate web of strip-like components fitted with boxed springs as an intermediate product for the production of box-spring cores |
| 09/25/2003 | US20030177624 Method for the manufacture of a spring core and device for implementing the method |
| 09/23/2003 | US6622384 Method and apparatus for forming spring units |
| 09/17/2003 | EP1343715A2 Pocketed spring mattress and innerspring construction and their method and device of manufacture |
| 09/10/2003 | EP1342693A1 Method and device for manufacture of pocketed springs |
| 09/04/2003 | US20030163977 Method and device for turning and relaxing springs |
| 08/27/2003 | EP1337357A1 Coil and coil-head formation dies for coils with non-conventional terminal convolutions |
| 08/20/2003 | EP1068147B1 Apparatus for the production of pocketed coil springs |
| 08/06/2003 | EP1047628B1 Double spring mattress and manufacturing process |
| 07/15/2003 | US6591438 Retracted pocket spring mattress; method for manufacturing of a pocket spring mattress and device for pre-tensioning pocketed coil spings |
| 07/15/2003 | US6591436 Side seam pocketed coil springs |
| 06/10/2003 | US6574811 Pocketed spring assembly and associated method |
| 04/24/2003 | WO2003033190A1 Coil and coil-head formation dies for coils with non-conventional terminal convolutions |
| 04/23/2003 | CN1106342C Method and apparatus for forming helical springs |
| 04/09/2003 | CN1105079C Method and device for producing spring units for mattresses and like and its spring device |
| 04/02/2003 | EP0828445B1 Multiple firmness mattress |
| 04/02/2003 | CN2542652Y Automatic turning-over device for spring in pocket |
| 03/27/2003 | US20030057617 Pocket spring assembly and methods |
| 03/26/2003 | EP1294634A1 Method and device for turning and relaxing springs |
| 03/19/2003 | CN1403344A Method for forming package spring string long belt |
| 03/12/2003 | EP1042217B1 Manufacture of pocket spring assemblies |
| 03/12/2003 | EP0970318A4 Multiple rate coil spring assembly |
| 01/29/2003 | EP0814923B1 Coil spring interior assembly method and apparatus |
| 01/09/2003 | WO2002044076A3 Pocketed spring mattress and innerspring construction and their method and device of manufacture |
| 01/08/2003 | EP1051271B1 Method and apparatus for forming spring units |
| 12/31/2002 | US6499275 Method and system for forming strings of pocketed coil springs |
| 12/27/2002 | WO2002102668A1 Method and system for forming strings of pocketed coil springs with traction mechanism |
| 11/21/2002 | WO2002092495A1 Method and device for transporting nested springs to a spring-core assembly device |
| 10/22/2002 | US6467240 Pocket spring assembly and methods |
| 09/17/2002 | CA2189549C Method and apparatus for manufacturing mattresses |
| 09/12/2002 | US20020124530 Side seam pocketed coil springs |
| 07/24/2002 | CN1088024C Method for forming strings of pocketed springs |
| 07/04/2002 | DE10064723A1 Vorrichtung zur Herstellung eines Taschenfederkerns Apparatus for producing a pocket spring core |
| 06/26/2002 | EP1216954A2 Device for manufacturing a box-spring core |
| 06/26/2002 | CN1355766A Method and system for forming strings of pocketed coil springs |
| 06/25/2002 | US6408514 Manufacture of pocketed compound nested coil springs |
| 06/06/2002 | WO2002044077A1 Separated pocket spring mattress |
| 06/06/2002 | WO2002044076A2 Pocketed spring mattress and innerspring construction and their method and device of manufacture |
| 06/04/2002 | US6397418 Double spring mattress and manufacturing process |
| 05/29/2002 | DE10145341A1 Method for producing a spring array involves envelopment of spiral springs into individual pockets of material to produce spring rows which are subsequently joined to one another |
| 05/16/2002 | WO2002038304A1 A method and installation for the transport of springs for spring interiors for mattresses or upholstery |
| 04/10/2002 | EP1194368A1 Retracted pocket spring mattress; method for manufacturing of a pocket spring mattress and device for pre-tensioning pocketed coil springs |
| 04/10/2002 | CN1344223A Method and appts. for mfg. innerspring assemblies |
| 03/07/2002 | US20020026770 Spring units for mattresses and the like |
| 01/31/2002 | US20020011698 Pocket spring assembly and methods |
| 01/16/2002 | EP1171377A1 Method and system for forming strings of pocketed coil springs |
| 01/08/2002 | US6336305 System for forming strings of pocketed coil springs |
| 01/03/2002 | WO2002000545A1 Method and device for turning and relaxing springs |
| 12/27/2001 | WO2001098151A1 Method and system for forming strings of pocketed coil springs |
| 12/19/2001 | EP1163188A1 Method and apparatus for manufacturing innerspring assemblies |
| 12/19/2001 | CN1076298C Method and apparatus for conditioning pocketed coil spring |
| 12/18/2001 | CA2155212C Manufacture of pocket spring assemblies |
| 11/28/2001 | EP0770037B1 Method and machine for making a spring-matress web and a spring-mattress web |
| 11/22/2001 | US20010042360 Method and system for forming strings of pocketed coil springs with traction mechanism |
| 11/14/2001 | EP0833772B1 Method for forming strings of pocketed springs |
| 11/13/2001 | US6315275 Pocket spring assembly and methods |
| 11/13/2001 | CA2265871C Method and apparatus for forming pocketed springs |
| 11/13/2001 | CA2223750C Multiple firmness mattress |
| 10/30/2001 | CA2223799C Method and apparatus for forming strings of pocketed springs |
| 10/24/2001 | EP1146974A1 Machinery for automated manufacture of innerspring assemblies |
| 10/17/2001 | EP0750537B1 Apparatus for manufacturing mattresses and box springs |
| 10/10/2001 | CN1316927A Machinery for automated manufacture of innerspring assembies |
| 08/16/2001 | EP1123238A1 Manufacture of pocketed compound nested coil springs |
| 07/17/2001 | US6260223 Pocketed coil spring units |
| 06/27/2001 | CN1301234A Apparatus for the production of pocketed coil springs |