Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21F - Working or processing of wire › B21F 33 - Tools or devices specially designed for handling or processing wire fabrics or the like
Patents for B21F 33 - Tools or devices specially designed for handling or processing wire fabrics or the like (522)
09/1999
09/14/1999US5950473 Coil spring forming and conveying assembly
08/1999
08/10/1999US5934339 Varied coil spring interior forming method and apparatus
08/03/1999US5930897 Method and apparatus for tempering knotted coil springs
07/1999
07/01/1999WO1999032244A1 Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus
06/1999
06/24/1999WO1999030853A1 Method and apparatus for forming spring units
06/02/1999EP0919309A2 Method and machine for the manufacture of rolled up reinforcement mats
05/1999
05/27/1999WO1999025509A1 Spring interior and method of making same
04/1999
04/07/1999EP0907033A2 Slotted clip and method
04/02/1999CA2249148A1 Slotted clip and method
03/1999
03/23/1999US5885407 Method and apparatus for forming pocket spring coil mattresses
03/04/1999WO1999010117A1 Varied coil spring interior forming method and apparatus
03/03/1999EP0899035A2 Method and apparatus for tempering knotted coil springs
03/03/1999EP0899034A2 Coil spring forming and conveying assembly
03/02/1999US5875664 Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus
02/1999
02/28/1999CA2245459A1 Coil spring forming and conveying assembly
02/28/1999CA2245454A1 Method and apparatus for tempering knotted coil springs
02/09/1999US5868240 Spring conveyor apparatus
01/1999
01/07/1999DE19828597A1 Method and tool for making a flange on a wire mesh component
12/1998
12/03/1998WO1998053933A1 Method and apparatus for manufacturing coil springs
12/03/1998CA2291822A1 Method and apparatus for manufacturing coil springs
10/1998
10/21/1998EP0872935A1 Cutting apparatus for twisted or layered materials
09/1998
09/09/1998EP0862959A1 Roll of wire mesh of the chain-link fencing type
09/03/1998DE19708321A1 Arrangement for receiving and transporting of latticework, especially structural steel wire mesh
08/1998
08/11/1998US5792309 Pocket coil spring structure assembling apparatus
08/04/1998US5788051 Device for transferring springs to an assembly machine
07/1998
07/21/1998US5782273 Dual lacing wire mechanism for a coil spring assembly machine
06/1998
06/11/1998WO1998024582A1 Method and apparatus for automatically cutting metallic braid
03/1998
03/04/1998CN1174947A Assembling device for bagged spiral spring assembly unit
02/1998
02/03/1998US5713400 Coil spring interior assembly method and apparatus
02/03/1998US5713088 Innerspring construction with springs having free terminal convolutions
01/1998
01/07/1998EP0814923A1 Coil spring interior assembly method and apparatus
12/1997
12/30/1997US5701936 Tucking device for wire weaving machines and method
11/1997
11/27/1997WO1997044275A1 Machine and method for applying border clips
10/1997
10/08/1997CN1161639A Innerspring construction with springs having free terminal convolutions
10/02/1997DE19629403C1 Turning device for flat reinforcement components
09/1997
09/17/1997EP0794720A1 Innerspring construction with springs having free terminal convolutions
09/11/1997DE19608366A1 Arrangement for manufacture of reinforcement baskets for concrete pipes
09/02/1997US5661899 Clip clamping machine
05/1997
05/22/1997DE19542847A1 Spring loading station for machine manufacturing spring cores, especially for mattress padding
05/22/1997DE19542845A1 Device for straightening and laying out of springs
05/21/1997EP0774310A1 Device for transferring springs to an assembly machine
05/21/1997EP0774309A1 Spring transfer device with servo drive
05/15/1997DE19640550A1 Device for cutting reinforced concrete mats
03/1997
03/26/1997EP0764608A1 Pocket coil spring structure assembling apparatus
03/04/1997CA2047438C Method and apparatus for making a series of pocketed coil springs
02/1997
02/20/1997DE19529912A1 Joining method for pocket spring coils used in upholstery
12/1996
12/12/1996DE19520349A1 Turning and stacking machine for welded lattice mats
12/10/1996US5582216 Apparatus and method for installing wire fencing
12/05/1996WO1996038240A1 Methods and means for forming spring coils
12/03/1996US5579810 Coil spring interior assembly method and apparatus
11/1996
11/28/1996DE19533415C1 Transporter for welded wire mesh
11/21/1996DE19618012A1 Selective turning over of flat objects esp. for reinforcement mats, etc.
10/1996
10/02/1996DE19510981A1 Reinforcement cut=out production for concrete prefabricates
09/1996
09/12/1996WO1996027461A1 Coil spring interior assembly method and apparatus
09/12/1996CA2212171A1 Coil spring interior assembly method and apparatus
07/1996
07/25/1996DE19501922A1 Putting and holding material esp. insulation on pipe ducts
05/1996
05/09/1996DE4439367A1 Assembly tool for disc brakes
05/02/1996WO1996012428A1 Innerspring construction with springs having free terminal convolutions
04/1996
04/23/1996US5509887 For a mattress
03/1996
03/12/1996US5497541 Stapling machine for spring carcass frames
02/1996
02/28/1996EP0698429A1 Device for bending in one operation a series of parallel bars pertaining to a net
12/1995
12/26/1995US5477893 Knot-tying mechanism
12/05/1995US5471725 Method for manufacturing mattresses or box springs, including improved spring transfer
11/1995
11/16/1995WO1995030622A1 Method and apparatus for manufacturing mattresses
09/1995
09/20/1995EP0672481A1 Method and device for the heat treatment of spring mattress cores
09/07/1995DE19504282A1 Gripping concrete reinforcing steel mat
05/1995
05/31/1995CN2198990Y Net frame rolling shaper
05/17/1995EP0417276B1 Apparatus for manufacturing combined springs
02/1995
02/14/1995US5388782 Apparatus for winding fence material
01/1995
01/25/1995EP0634964A1 Bolt or wire-mesh cutter
11/1994
11/22/1994CA2013634C Machine for punching out butterfly clips for fastening to a frame of a spring core
11/03/1994DE4414240A1 Device for cutting gratings
11/01/1994CA1332805C Automatic machine for producing frames for spring mattresses from circular or flat wire
06/1994
06/14/1994US5319833 Apparatus for producing coils from spring steel material
05/1994
05/04/1994EP0515581B1 Device for producing coils from spring steel material
02/1994
02/22/1994CA1327120C Apparatus for manufacturing spring unit
02/16/1994EP0583235A1 Reinforcement steel transforming plant
10/1993
10/14/1993WO1993019880A1 Bolt or wire-mesh cutter
09/1993
09/08/1993EP0446322B1 Device for making wrapped wire mesh rolls
06/1993
06/30/1993EP0549513A1 Stapling machine for spring carcass frames
05/1993
05/18/1993US5211350 System for producing strapped rolls of wire screening
04/1993
04/20/1993CA1316432C Apparatus and method for automatically securing borderwires on mattress innersprings
02/1993
02/16/1993US5186435 Apparatus for compressing a spring
12/1992
12/22/1992US5172736 Apparatus for manufacturing spring unit
10/1992
10/21/1992CN2119281U Shaper for bending steel wire
09/1992
09/24/1992DE4108881A1 Machine for making springs for spring mattress - has two turntables to carry out two stages of spring forming
09/01/1992US5144677 Hand-held microphone apparatus with resilient stabilizing ring
08/1992
08/18/1992US5139054 Spring interior forming and assembling apparatus
08/11/1992US5136867 Automatic frame bending machine for bending of steel rods or band steel
04/1992
04/29/1992EP0482674A2 Method for making spring mattresses comprising a spring core provided with a borderframe on its lower and upper side
04/01/1992EP0478530A1 Shearing apparatus for severing sections of any desired length from a grating web
10/1991
10/08/1991US5054178 Process and apparatus for the production of innersprings for mattresses and upholstered furniture
09/1991
09/18/1991EP0446322A1 Device for making wrapped wire mesh rolls.
08/1991
08/27/1991US5042124 Machine for punching out butterfly clips for fastening to a frame of a spring core
08/14/1991DE4004187A1 Vorrichtung und verfahren zur herstellung von stossdaempfer-grundkoerpern Apparatus and process for production of shock absorber grundkoerpern
08/13/1991WO1991012100A1 Device for producing coils from spring steel material
06/1991
06/19/1991EP0298081B1 Device in a clamping machine
04/1991
04/23/1991US5009545 Wire mesh straightening method and apparatus
04/18/1991WO1991004807A1 Device for making wrapped wire mesh rolls
03/1991
03/20/1991EP0417276A1 Apparatus for manufacturing combined springs
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