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IPC 7
E04C-E04C00520

SECTION E – FIXED CONSTRUCTIONS


E 04BUILDING (layered materials, layered products in general B32B)


E 04 CSTRUCTURAL 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)



1/

00Building 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]

1/

39.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

1/

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

1/

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

1/

42.of glass or other transparent material


2/

00Building 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)

2/

02.characterised by specified materials (translucent E04C 2/54)

2/

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

2/

06...reinforced

2/

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

2/

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

2/

12...of solid wood

2/

14....reinforced

2/

16...of fibres, chips, vegetable stems, or the like

2/

18....with binding wires, reinforcing bars, or the like

2/

20...of plastics

2/

22....reinforced

2/

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

2/

26..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

2/

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

2/

284...at least one of the materials being insulating  [6]

2/

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

2/

292....composed of insulating material and sheet metal  [6]

2/

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

2/

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

2/

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

2/

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

2/

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

2/

38..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)

2/

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

2/

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

2/

52..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)

2/

54.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)


3/

00Structural elongated elements designed for load-supporting (as building aids E04G)

3/

02.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)

3/

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

3/

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

3/

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

3/

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

3/

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

3/

10...prestressed

3/

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

3/

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

3/

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

3/

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

3/

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

3/

18...with metal reinforcements or tensioning members

3/

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

3/

22...built-up by elements joined in line

3/

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

3/

28..of other materials

3/

29..built-up from parts of different materials

3/

292...the materials being wood and metal

3/

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

3/

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)

3/

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

3/

32..of metal (E04C 3/36 takes precedence)

3/

34..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)

3/

36..of other materials

3/

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

3/

40..of metal (E04C 3/46 takes precedence)

3/

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

3/

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

3/

46..of other materials


5/

00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor (material composition C21, C22; arrangements of reinforcing elements, see the relevant classes)

5/

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

5/

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

5/

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

5/

04...Mats (bases for plaster E04F 13/04)

5/

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

5/

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

5/

07.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]

5/

08.Members specially adapted to be used in prestressed constructions

5/

10..Ducts

5/

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

5/

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

5/

18..of metal or substantially of metal

5/

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


  
 

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