CPC Definition - Subclass B21F
This place covers:
Methods as well as devices relating to working or processing of metal wire, i.e. modifying, not manufacturing the wire:
Wire working methods characterized by their technology (e.g. bending, coiling, etc). These aspects are covered by B21F 1/00-B21F 23/005
Wire working methods characterized by the product made (e.g. barbed wire, wire network etc). These aspects are covered by B21F 25/00-B21F 45/28
Miscellaneous wire working and processing. These aspects are covered by B21F 99/00
This place does not cover:
Metal rolling methods of mills for making wire or material of like small cross-section | |
Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing | |
Devices for straightening wire or like work combined with or specially adapted for use in connection with drawing or winding machines or apparatus | |
Manufacture of bars or wires by metal working | |
Devices for cleaning metal products, e.g. wires , combined with or specially adapted for use with machines or apparatus provided in B21C | |
Winding-up, coiling or winding-off metal wires, metal band or other flexible metal material characterised by features relevant to metal processing only |
Attention is drawn to the following places, which may be of interest for search:
Jewellery; Bracelets: Other personal ornaments; coins | |
Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; punching | |
Making needle, pins or nails | |
Making chains | |
Making alloys containing metallic or non-metallic fibres or filaments | |
Building | |
Semi-conductor devices; electric solid state devices not other wise provided for |
This place covers:
Methods and devices for bending wire, i.e. forming discrete angles, as well as straightening, i.e. removing distortions.
Source: WO9324254
This place covers:
Methods and devices for coiling wire, i.e. forming a continuous angle along the wire length.
Source: JP58192643
Attention is drawn to the following places, which may be of interest for search:
Making springs from wire |
This place covers:
Methods and devices for enlarging a wire cross-section by applying an axial force.
Source: US2004261487
Attention is drawn to the following places, which may be of interest for search:
Methods for forging, hammering or pressing to perform upsetting |
This place covers:
Methods and devices for continuously twisting of wire, i.e. twisting of a wire of theoretically unlimited length.
Source: EP1693126
This place does not cover:
Connecting wire with wire without additional connecting element or material, e.g. by twisting | |
Electrically-conductive connections between two or more conductive members in direct contact effected by twisting wire |
Attention is drawn to the following places, which may be of interest for search:
Jacketing or reinforcing articles with wires | |
Wire working in the manufacture of flexible shafts or hollow conduits, e.g. for Bowden mechanisms | |
Producing bead-rings or bead-cores | |
Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing dynamo-electric machines |
This place covers:
Methods and devices for straining wires, i.e. tensioning wires with or without plastic deformation.
Source: WO9429046
This place does not cover:
Connections or attachments adapted for straining of cables, ropes or wire |
Attention is drawn to the following places, which may be of interest for search:
Straightening wire | |
Bundling machines or tools | |
Hand tools for cable tie applications | |
Pre-stressing building material |
This place covers:
Methods and devices for cutting wire
Source: US6427433
This place does not cover:
Cutting wire nets | |
Hand operated metal-shearing devices for cutting wires |
Attention is drawn to the following places, which may be of interest for search:
Machines or devices for shearing or cutting profiled stock | |
Hand-held cutting tools not otherwise provided for | |
Hand cutting tools using wires as cutting means | |
Cutting |
This place covers:
Methods and devices for splitting, i.e. separating wire portions lengthwise.
Source: GB786261
This place covers:
Methods and devices for connecting wire to wire or other metallic material; connecting parts by means of wire.
Source: US5224955
This place does not cover:
Straining wire by tools also adapted for making connections | |
Making wire networks with additional connecting elements or material at crossings | |
Making wire networks with welded or soldered crossings | |
Applying and securing binding material around articles using strings, wires, strips, bands, tapes | |
Attaching or detaching leads of semi-conductors |
Attention is drawn to the following places, which may be of interest for search:
Jacketing or reinforcing articles with wire | |
Making bands, e.g. bracelets of wire | |
Soldering or unsoldering; Welding |
This place covers:
Methods and devices for jacketing articles with wire, i.e. winding one or more wire around an article (which article can be a wire); reinforcing articles with wire (e.g. reinforcing paper with wire).
Source: GB1324072
This place does not cover:
Jacketing or reinforcing of articles with wires by winding or coiling | |
Making alloys containing metallic or non-metallic fibres or filaments by forming the fibres or filaments into a preformed structure from wires or filaments only | |
Jacketing or reinforcing of articles with wires by braiding |
This place covers:
Methods and devices for coating metal wires, e.g. by using a metal band.
Source: US2009311553
This place does not cover:
Coating of wire by extrusion | |
Coating of wire by soldering or welding, e.g. cladding or plating | |
Coating of wire by other non-mechanical means | |
Coating of wire by electroplating |
This place covers:
Methods and devices for feeding wire.
Source: EP0824982
This place does not cover:
Guiding wire | |
Feeding wire in wire-working machines, said machines also being applicable to feed rods or strips |
Attention is drawn to the following places, which may be of interest for search:
Arrangements for moving, supporting or positioning work specially adapted for metal rolling mills | |
Forwarding filamentary material |
This place covers:
Methods and devices for making barbed wires or barbed tapes.
Source: GB2300206
Attention is drawn to the following places, which may be of interest for search:
Barbed wires |
This place covers:
Methods and devices for making wire networks, e.g. fences or reinforcements for concrete.
Source: EP2153800
This place does not cover:
Making fencing or the like partly of wire | |
Making meshed ring network from wire | |
Making bands from wire | |
Making other particular articles from wire | |
Making wire network using looms |
Attention is drawn to the following places, which may be of interest for search:
Connecting wire to wire or other metallic material | |
Bending wire networks | |
Soldering or unsoldering; Welding | |
Reinforcing elements, e.g. for concrete | |
Fencing |
This place covers:
Methods and devices for making structures partly of wire and partly of other elements, e.g. fences reinforced with bars.
Source: US4651975
This place covers:
Methods and devices for making networks, e.g. fences, obtained by interlacing rings of metal wires, e.g. fences for securing rocks.
Source: EP1662047
Interlaced rings can be of non-circular shape.
This place covers:
Methods and devices for handling or processing wire fabrics, i.e. further handling or processing of products manufactured from wire (e.g. connecting wire products, coiling wire products, etc).
Source: US3814144
Attention is drawn to the following places, which may be of interest for search:
Bending of wire networks | |
Upholstery |
This place covers:
Methods and devices for making springs from wire.
Miscellaneous spring manufacturing processes, not necessarily starting from wire, not otherwise provided for.
Source: EP1533053
Attention is drawn to the following places, which may be of interest for search:
Bending wire other than coiling | |
Manufacture of resilient rings | |
Springs |
This place covers:
Methods and devices for the manufacture of rings from wire.
Source: EP1504828
This place does not cover:
Manufacture of rings in chain making | |
Manufacture of rings in tyre beads making |
This place covers:
Methods and devices for the manufacture of wheel spokes from wire.
Source: GB357081
This place covers:
Methods and devices for the manufacture of umbrella frames or members from wire.
Source: DE177303
This place covers:
Methods and devices for the manufacture of bands or bracelets from wire.
Source: GB2079336
This place does not cover:
Making bands using looms |
This place covers:
Methods and devices for the manufacture of all wire products if neither classifiable in a sub-group of B21F 45/00 nor in a class ranging from B21F 25/00-B21F 43/00 nor in a specific product class.
Source: US2002198561
This place does not cover:
Wire working in the manufacture of pins, needles, mails, hairpins | |
Wire working in the manufacture of chains | |
Wire working for semi-conductor devices |
This place covers:
Subject-matter not provided for in other groups of this subclass concerning the working and processing of wire, such as e.g. heat treatments specifically adapted for wires.