| Patents for B68G 9 - Placing upholstery springs in pockets; Fitting springs in upholstery (479) |
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| 11/05/1997 | CN1164215A Conditioning pocketed coil springs |
| 10/16/1997 | WO1997037928A1 Spring units for mattresses and the like |
| 10/16/1997 | WO1997037569A1 Method and means for the production of a spring insert |
| 09/23/1997 | US5669093 Pocketed coil spring assembly |
| 09/10/1997 | CN1158820A Pocket coil spring producing apparatus |
| 07/30/1997 | EP0750537A4 Apparatus for manufacturing mattresses and box springs |
| 07/23/1997 | EP0784592A1 Device for producing a box-spring core |
| 07/02/1997 | EP0781726A2 Pocket coil spring producing apparatus |
| 06/25/1997 | EP0779789A1 Method and apparatus for providing improved pocketed innerspring constructions |
| 06/10/1997 | US5637178 Method and apparatus for assembling innerspring constructions for mattresses cushions and the like |
| 05/14/1997 | EP0772547A1 Conditioning pocketed coil springs |
| 05/02/1997 | EP0770037A1 Method and machine for making a spring-matress web and a spring-mattress web |
| 04/24/1997 | WO1997014338A1 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 |
| 04/22/1997 | US5621935 Method and apparatus for providing improved pocketed innerspring constructions |
| 04/17/1997 | DE19538327A1 Vorrichtung zum Schlitzen des Zwischensteges von bandartigen, mit getaschten Federn bestückten Elementen als Zwischenprodukt für die Herstellung von Taschenfederkernen An apparatus for slitting the web of the intermediate band-like elements fitted with pocketed springs as an intermediate product for the production of pocket spring cores |
| 03/26/1997 | EP0764608A1 Pocket coil spring structure assembling apparatus |
| 03/25/1997 | US5613287 Method for forming strings of pocketed springs |
| 03/04/1997 | CA2047438C Method and apparatus for making a series of pocketed coil springs |
| 02/20/1997 | DE19529913A1 System for storing and conveying strings of pocket springs for e.g. mattresses |
| 02/20/1997 | DE19529911A1 Appts. for conveying strings of pocket springs to work table |
| 02/18/1997 | USRE35453 Spring unit assembly |
| 01/02/1997 | EP0750537A1 Apparatus for manufacturing mattresses and box springs |
| 12/19/1996 | WO1996040557A1 Method and apparatus for forming strings of pocketed springs |
| 12/03/1996 | US5579810 Coil spring interior assembly method and apparatus |
| 11/21/1996 | WO1996036258A1 Securement of flexible sheet material |
| 11/14/1996 | WO1996035637A1 Method and machine for making a spring-matress web and a spring-mattress web |
| 11/14/1996 | WO1996035356A1 Multiple firmness mattress |
| 11/12/1996 | US5572853 Method and apparatus for conditioning pocketed coil springs |
| 09/12/1996 | WO1996027553A1 Apparatus for the manufacture of innerspring constructions |
| 09/12/1996 | WO1996027461A1 Coil spring interior assembly method and apparatus |
| 09/12/1996 | CA2212171A1 Coil spring interior assembly method and apparatus |
| 09/10/1996 | US5553443 Method for creating strings of pocketed coil springs |
| 04/23/1996 | US5509887 For a mattress |
| 04/18/1996 | WO1996011163A1 Device for producing a box-spring core |
| 04/11/1996 | DE4435771A1 Vorrichtung zur Herstellung eines Taschenfederkernes Apparatus for producing a pocket spring core |
| 03/14/1996 | WO1996007345A1 Method and apparatus for providing improved pocketed innerspring constructions |
| 03/12/1996 | US5497600 Method of encapsulating spring units |
| 02/22/1996 | WO1996005109A1 Conditioning pocketed coil springs |
| 01/31/1996 | EP0694024A1 Manufacture of pocket spring assemblies |
| 12/05/1995 | US5471725 Method for manufacturing mattresses or box springs, including improved spring transfer |
| 11/16/1995 | WO1995030622A1 Method and apparatus for manufacturing mattresses |
| 09/21/1995 | WO1995024987A1 Apparatus for manufacturing mattresses and box springs |
| 09/21/1995 | WO1995024847A1 Spring assemblies for mattresses and the like |
| 09/20/1995 | CN2208037Y Lifting device of overedging machine for spring mattress |
| 08/29/1995 | US5444905 Apparatus for manufacturing mattresses and box springs |
| 08/08/1995 | CA2026817C Method and apparatus for assembling innerspring constructions for mattresses, cushions and the like |
| 04/19/1995 | CN1028218C Spring unit assembly |
| 01/25/1995 | EP0496774B1 Encapsulated spring unit, mattress or upholstery unit comprising such spring units, method and apparatus for manufacturing the same |
| 11/17/1994 | EP0624545A1 Method of producing a spring insert |
| 11/10/1994 | DE4314930A1 Accompanying-document insertion device |
| 09/21/1994 | CN2177705Y Soft mattress with bagged springs |
| 08/18/1994 | WO1994018116A1 Manufacture of pocket spring assemblies |
| 08/11/1994 | DE4303089A1 Method and device for manufacturing pocketed spring interior mattresses |
| 04/19/1994 | US5303530 Spring unit assembly |
| 08/10/1993 | US5233711 Cushion body and method of forming same |
| 02/16/1993 | US5186435 Apparatus for compressing a spring |
| 08/04/1992 | US5134763 Core insert machine and process |
| 06/30/1992 | US5126004 Method and apparatus for assembling innerspring construction for mattresses, cushions and the like |
| 06/10/1992 | CN1061758A Spring unit assembly |
| 05/02/1991 | WO1991005732A1 Encapsulated spring unit, mattress or upholstery unit comprising such spring units, method and apparatus for manufacturing the same |
| 04/10/1991 | EP0421495A1 Method and apparatus for assembling innerspring constructions for mattresses, cushions and the like |
| 01/22/1991 | US4986518 Pocketed coil strings having a flat overlap side seam |
| 09/05/1989 | US4862540 Resilient body |
| 08/08/1989 | US4854023 Method for providing pocketed coil strings having a flat overlap side seam |
| 03/28/1989 | US4815182 Apparatus and method for automatically securing borderwires on mattress innersprings |
| 04/05/1988 | CA1234685A1 Method and apparatus for manufacturing innerspring constructions |
| 01/28/1986 | US4566926 Method and apparatus for manufacturing innerspring constructions |
| 01/21/1986 | US4565046 Apparatus for manufacturing pocketed coil springs |
| 10/01/1985 | CA1194621A1 Process for the production of elastic manufactured articles for making mattresses and other items, and mattresses made using such process |
| 09/18/1985 | EP0155158A2 Method and apparatus for manufacturing innerspring constructions |
| 12/18/1984 | CA1179490A1 Apparatus for making assemblies of pocketed springs |
| 05/09/1984 | EP0107872A1 Body from resilient foam material, such as a buffer, a seat cushion or mattress from foam rubber or synthetic foam material |
| 04/03/1984 | US4439977 Method and apparatus for making a series of pocketed coil springs |
| 09/28/1983 | EP0089789A1 Method of producing elastic articles and mattresses made therefrom |
| 08/30/1983 | US4401501 Apparatus for making assemblies of pocketed springs |
| 07/19/1983 | US4393792 Apparatus for mattress manufacture |
| 09/15/1982 | EP0060146A1 Apparatus for making assemblies of pocketed springs |
| 09/16/1980 | CA1085597A1 Method and apparatus for making a series of pocketed coil springs |
| 02/05/1980 | CA1071335A1 Thermally welded spring pockets |