WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B21F　WORKING AND PROCESSING OF WIRE ({reducing diameter by} rolling of metal B21B; by drawing, auxiliary operations used in connection with metal working without essentially removing material B21C)

B21F 1/00 Bending wire other than coiling; Straightening wire

B21F 1/002 ・{by means of manually operated devices, e.g. pliers}

B21F 1/004 ・{by means of press-type tooling}

B21F 1/006 ・{in 3D with means to rotate the tools about the wire axis}

B21F 1/008 ・{in 3D with means to rotate the wire about its axis}

B21F 1/02 ・Straightening

B21F 1/023 ・・{in a device rotating about the wire axis}

B21F 1/026 ・・{Straightening and cutting}

B21F 1/04 ・Undulating

B21F 1/06 ・Bending wire-eyes

B21F 3/00 Coiling wire into particular forms

B21F 3/02 ・helically

B21F 3/027 ・・with extended ends formed in a special shape, e.g. for clothes-pegs

B21F 3/04 ・・externally on a mandrel or the like

B21F 3/06 ・・internally on a hollow form

B21F 3/08 ・to flat spiral

B21F 3/10 ・to spirals other than flat, e.g. conical

B21F 3/12 ・of interconnected helical springs

B21F 5/00 Upsetting wire {or pressing operations affecting the wire cross-section}(in the manufacture of nails or pins B21G 3/12)

B21F 5/005 ・{Upsetting wire}

B21F 7/00 Twisting wire; Twisting wire together (for connections of limited size B21F 15/04)

B21F 9/00 Straining wire (straining pre-stressing wires for concrete E04G 21/12; connections or attachments adapted for straining F16G 11/00; {bundling machines or tools B65B 13/00})

B21F 9/002 ・{to maintain tension in the wire, e.g. to pull the wire taut}

B21F 9/005 ・{to affect the material properties of the wire}

B21F 9/007 ・{to induce a plastic deformation of the wire}

B21F 9/02 ・by tools adapted also for making connections

B21F 11/00 Cutting wire (hand cutting tools B26B)

B21F 11/005 ・{springs}

B21F 13/00 Splitting wire

B21F 15/00 Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire (tools for both straining and connecting B21F 9/00; jacketing or reinforcing B21F 17/00; manufacture of wire network B21F 27/00; in making bands B21F 43/00){bundling machines or tools B65B 13/00; for semiconductors H01L 24/85}

B21F 15/02 ・wire with wire

B21F 15/04 ・・without additional connecting elements or material, e.g. by twisting

B21F 15/06 ・・with additional connecting elements or material {(B21F 27/08 takes precedence)}

B21F 15/08 ・・・making use of soldering or welding {(B21F 27/10 takes precedence)}

B21F 15/10 ・wire with sheet metal

B21F 17/00 Jacketing or reinforcing articles with wire (by winding B65H 54/00, B65H 81/00; by braiding D04C)

B21F 19/00 Metallic coating of wire (by extruding B21C 23/24; by soldering or welding, e.g. cladding or plating B23K; by other non-mechanical means C23; electroplating C25D)

B21F 23/00 Feeding wire in wire-working machines or apparatus (applicable also to feeding rods or strips B21D 43/00)

B21F 23/002 ・{Feeding means specially adapted for handling various diameters of wire or rod}

B21F 23/005 ・{Feeding discrete lengths of wire or rod}

B21F 23/007 ・・{using pick-up means, e.g. for isolating a predefined number of wires from a bundle}

B21F 25/00 Making barbed wire

B21F 27/00 Making wire network, i.e. wire nets (meshed-ring network B21F 31/00; in making bands B21F 43/00; using looms D03D)

B21F 27/005 ・{Wire network per se}

B21F 27/02 ・without additional connecting elements or material at crossings, e.g. connected by knitting

B21F 27/04 ・・Manufacturing on machines with rotating blades or formers

B21F 27/06 ・・Manufacturing on twister-gear machines

B21F 27/08 ・with additional connecting elements or material at crossings

B21F 27/10 ・・with soldered or welded crossings {(resistance spot welding machines for manufacturing of metallic grids or mats B23K 11/008)}

B21F 27/12 ・Making special types or portions of network by methods or means specially adapted therefor

B21F 27/121 ・・{of tubular form, e.g. as reinforcements for pipes or pillars}

B21F 27/122 ・・・{by attaching a continuous stirrup to longitudinal wires}

B21F 27/124 ・・・・{applied by rotation}

B21F 27/125 ・・・{by attaching individual stirrups to longitudinal wires}

B21F 27/127 ・・・{by bending preformed mesh}

B21F 27/128 ・・{of three-dimensional form by connecting wire networks, e.g. by projecting wires through an insulating layer}

B21F 27/14 ・・Specially bending or deforming free wire ends

B21F 27/16 ・・for spring mattresses

B21F 27/18 ・・of meshed work for filters or sieves

B21F 27/20 ・・of plaster-carrying network

B21F 27/22 ・・of network for wire-reinforced glass or the like

B21F 29/00 Making fencing or like material made partly of wire (B21F 25/00, B21F 27/00 take precedence)

B21F 29/02 ・comprising bars or the like connected by wires

B21F 31/00 Making meshed-ring network from wire

B21F 33/00 Tools or devices specially designed for handling or processing wire fabrics or the like

B21F 33/002 ・{Coiling or packing wire network}

B21F 33/005 ・{Cutting wire network}

B21F 33/007 ・{Connecting wire network}

B21F 33/02 ・Mounting of wire network on frames

B21F 33/025 ・・{Mounting of mattress innersprings on borderframes}

B21F 33/04 ・Connecting ends of helical springs for mattresses

B21F 35/00 Making springs from wire (by coiling wire B21F 3/00; making resilient rings B21F 37/02)

B21F 35/003 ・{Multi-filament springs, e.g. made of stranded, braided, cable or multi-filament material}

B21F 35/006 ・{Double twist coil springs}

B21F 35/02 ・Bending or deforming ends of coil springs to special shape

B21F 35/04 ・Making flat springs, e.g. sinus springs

B21F 37/00 Manufacture of rings from wire (in chain making B21L; making of tyre beads B29D 30/48)

B21F 37/02 ・of resilient rings, e.g. key-rings

B21F 37/04 ・of washers (B21F 37/02 takes precedence)

B21F 39/00 Making wheel spokes from wire

B21F 41/00 Making umbrella frames or members from wire

B21F 43/00 Making bands, e.g. bracelets, or wire (making chains B21L; using looms D03D)

B21F 45/00 Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L; {for semiconductor devices H01L 24/42})

B21F 45/002 ・{of frames for spectacles}

B21F 45/004 ・{Mounting bails on containers}

B21F 45/006 ・{of concrete reinforcement fibres}

B21F 45/008 ・{of medical instruments, e.g. stents, corneal rings (medical science A61)}

B21F 45/02 ・of clothes hangers

B21F 45/04 ・of elements, e.g. levers or links, for bottle stoppers

B21F 45/06 ・of flexible shafts or hollow conduits, e.g. for Bowden mechanisms

B21F 45/08 ・of loom heddles

B21F 45/10 ・of cards for fabric-napping machines

B21F 45/12 ・of fishing hooks

B21F 45/14 ・of end-pieces for laces or ropes

B21F 45/16 ・of devices for fastening or securing purposes

B21F 45/18 ・・of slide fastener elements

B21F 45/20 ・・of springs hooks; of spring safety hooks

B21F 45/22 ・・of paper fasteners or clips (staples B21F 45/24)

B21F 45/24 ・・of staples; of belt-fastening elements

B21F 45/26 ・・of buttons

B21F 45/28 ・・・of "patent-fastener" or press-button type

B21F 99/00 Subject matter not provided for in other groups of this subclass