IPC 7 English version E04C-E04C 5/20

E04C-E04C00520

SECTION E – FIXED CONSTRUCTIONS

E 04

BUILDING (layered materials, layered products in general B32B)

E 04 C

STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)

Building elements of block or other shape for the construction of parts of buildings (of relatively thin form E04C 2/00; structural elongated elements designed for load-supporting E04C 3/00, e.g. columns or pillars E04C 3/30; manufacture or material of building bricks, stones, or the like B28, C03, C04; paving elements E01C; general building constructions E04B, e.g. walls E04B 2/00, floors E04B 5/00, roofs E04B 7/00, ceilings E04B 9/00; structural elements specially designed for built-in conduit shafts E04F; special elements for building ovens or furnaces F24B, F27D) [5]

characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra

built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts

composed of insulating material and load-bearing concrete, stone or stone-like material [6]

of glass or other transparent material

Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels (materials or manufacture, see the relevant places, e.g. B27N, B29, D21J; made in situ E04B; specially designed for insulation or other protection E04B 1/62; load-carrying floor structures E04B 5/02, E04B 5/16; roofs consisting of self-supporting slabs E04B 7/20; roof- or like covering elements E04D 3/00; for lining or finishing E04F 13/00)

characterised by specified materials (translucent E04C 2/54)

of concrete or other stone-like material; of asbestos cement (E04C 2/26 takes precedence; material or manufacture B28, C04)

reinforced

of metal, e.g. sheet metal (E04C 2/26 takes precedence)

of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products (E04C 2/26 takes precedence)

of solid wood

reinforced

of fibres, chips, vegetable stems, or the like

with binding wires, reinforcing bars, or the like

of plastics

reinforced

laminated and composed of materials covered by two or more of groups E04C 2/12, E04C 2/16, E04C 2/20

composed of materials covered by two or more of groups E04C 2/04, E04C 2/08, E04C 2/10, or of materials covered by one of these groups with a material not specified in one of these groups

combinations of materials fully covered by groups E04C 2/04 and E04C 2/08

284

at least one of the materials being insulating [6]

288

composed of insulating material and concrete, stone or stone-like material [6]

292

composed of insulating material and sheet metal [6]

296

composed of insulating material and non-metallic or unspecified sheet-material (E04C 2/288 takes precedence) [6]

characterised by the shape or structure (translucent E04C 2/54)

formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material

composed of two or more spaced sheet-like parts (E04C 2/32 takes precedence; spacers for cavity walls E04B 2/44)

spaced apart by transversely-placed strip material, e.g. honeycomb panels (honeycomb or other core members for layered products B32B)

with attached ribs, flanges, or the like, e.g. framed panels (concerned with attaching to other panels or elements to form a structure, see the places for the relevant structure, e.g. E04B 2/00)

composed of a number of smaller components rigidly or movably connected together, e.g. interlocking, hingedly connected

Gratings; Grid-like panels (reinforcing elements E04C 5/00; built-in gratings E04F 19/10; gratings in general F16S 3/00)

with special adaptations for auxiliary purposes, e.g. serving for locating conduits (E04C 2/54 takes precedence; block-shaped elements therefor E04C 1/39; floor structures incorporating ducts E04B 5/48)

Slab-like translucent elements (floors for transmitting light E04B 5/46; translucent or open-work ceilings E04B 9/32, E04B 9/34; translucent roof coverings E04D 3/06, E04D 3/28)

Structural elongated elements designed for load-supporting (as building aids E04G)

Joists; Girders, trusses, or truss-like structures, e.g. prefabricated; Lintels; Transoms (E04C 3/38 takes precedence; for structures characterised by movable, separable, or collapsible parts E04B 1/343)

of metal (E04C 3/29 takes precedence; as reinforcing elements E04C 5/06; manufacture B21)

with substantially solid, i.e. unapertured, web (E04C 3/10, E04C 3/11 take precedence)

at least partly of bent or otherwise deformed strip- or sheet-like material

with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders (E04C 3/10, E04C 3/11 take precedence)

at least partly of bent or otherwise deformed strip- or sheet-like material

prestressed

with non-parallel upper and lower edges, e.g. roof trusses (arched girders, portal frames E04C 3/38)

of wood, e.g. with reinforcements, with tensioning members (E04C 3/292 takes precedence)

with substantially solid, i.e. unapertured, web (E04C 3/17, E04C 3/18 take precedence)

with apertured web, e.g. trusses (E04C 3/17, E04C 3/18 take precedence)

with non-parallel upper and lower edges, e.g. roof trusses

with metal reinforcements or tensioning members

of concrete or other stone-like material, e.g. with reinforcements or tensioning members (reinforcing elements E04C 5/00)

built-up by elements joined in line

prestressed (E04C 3/22, E04C 3/29 take precedence; prestressing members E04C 5/08)

of other materials

built-up from parts of different materials

292

the materials being wood and metal

293

the materials being steel and concrete (concrete with internal reinforcements or tensioning members E04C 3/20)

294

of concrete combined with a girder-like structure extending laterally outside the element (light-weight girders used as reinforcement E04C 5/065; as part of a floor structure E04B 5/23)

Columns; Pillars; Struts (not designed for end loading E04C 3/02; posts, masts, as independent structures E04H 12/00)

of metal (E04C 3/36 takes precedence)

of concrete or other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings (E04C 3/36 takes precedence)

of other materials

Arched girders or portal frames (straight girders able to be bent E04C 3/02; inflatable tents or canopies, in general E04H 15/20)

of metal (E04C 3/46 takes precedence)

of wood, e.g. units for rafter roofs (E04C 3/46 takes precedence)

of concrete or other stone-like material, e.g. with reinforcements or tensioning members (E04C 3/46 takes precedence)

of other materials

Reinforcing elements, e.g. for concrete; Auxiliary elements therefor (material composition C21, C22; arrangements of reinforcing elements, see the relevant classes)

Reinforcing elements of metal, e.g. with non-structural coatings [5]

of low bending resistance, i.e. of essentially one-or two-dimensional extent

with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete

Mats (bases for plaster E04F 13/04)

of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders

065

Light-weight girders, e.g. with precast parts (light-weight girders in general E04C 3/08, E04C 3/294)

Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal (metal elements with non-structural coatings E04C 5/01) [5]

Members specially adapted to be used in prestressed constructions

Ducts

Anchoring devices (tools or methods for tensioning E04G 21/12) [5]

Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups (tools for connecting reinforcing elements E04G 21/12)

of metal or substantially of metal

of other material than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires