3300935

Information

• Patent Grant
• 3300935

• References
• Source

• Patent Number

  3,300,935

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1967
  58 years ago

• CPC

  • E04D3/38 - Devices for sealing spaces or joints between roof-covering elements
  • B28B3/003 - Pressing by means acting upon the material via flexible mould wall parts
  • B28B3/006 - Pressing by atmospheric pressure, as a result of vacuum generation or by gas or liquid pressure acting directly upon the material
  • B28B7/46 - for humidifying or dehumidifying
  • B28B21/20 - using inflatable cores
  • B29C49/0005 - characterised by the choice of material
  • B29C53/566 - for making tubular articles followed by compression
  • B29C70/446 - Moulding structures having an axis of symmetry or at least one channel
  • E04B5/06 - with beams placed against one another optionally with pointing-mortar
  • E04B7/20 - Roofs consisting of self-supporting slabs
  • E04C3/28 - of other materials not covered by groups E04C3/40 - E04C3/44
  • E04D3/32 - of plastics, fibrous materials, or asbestos cement
  • E04D3/35 - Roofing slabs or stiff sheets comprising two or more layers
  • E04D3/357 - comprising hollow cavities
  • B29C43/12 - using bags surrounding the moulding material or using membranes contacting the moulding material
  • B29C49/02 - Combined blow-moulding and manufacture of the preform or the parison
  • B29L2031/003 - having a profiled transverse cross-section

• US Classifications

  • 052 - Static structures