Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
  • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
  • E04C2/42—Gratings; Grid-like panels
  • E04C2/421—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction
  • E04C2/422—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern
  • E04C2/425—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern made of perforated bars
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
  • B21D47/005—Making gratings

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=8703054

Family Applications (1)

Country Status (1)

• 1957
  • 1957-04-30 FR FR71493D patent/FR71493E/fr not_active Expired

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