3294387

Information

• Patent Grant
• 3294387

• References
• Source

• Patent Number

  3,294,387

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1966
  57 years ago

• CPC

  • B32B37/146 - whereby one or more of the layers is a honeycomb structure
  • B29C47/0038 - Combined shaping operations
  • B29C51/225 - mounted on a vacuum drum
  • B29C65/02 - by heating, with or without pressure
  • B29C65/1432 - direct heating of the surfaces to be joined
  • B29C65/48 - using adhesives
  • B29C66/21 - said joint lines being formed by a single dot or dash or by several dots or dashes
  • B29C66/438 - Joining sheets for making hollow-walled, channelled structures or multi-tubular articles
  • B29C66/45 - Joining of substantially the whole surface of the articles
  • B29C66/5346 - said single elements being substantially flat
  • B29C66/54 - Joining several hollow-preforms
  • B29C66/545 - one hollow-preform being placed inside the other
  • B29C66/727 - being porous
  • B29C66/83411 - Roller, cylinder or drum types
  • B29C66/83415 - the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
  • B29C66/83511 - jaws mounted on rollers, cylinders or drums
  • B29C66/83521 - jaws mounted on bands or belts
  • B29D24/00 - Producing articles with hollow walls
  • B32B27/00 - Layered products comprising a layer of synthetic resin
  • B65D81/03 - Wrappers or envelopes with shock-absorbing properties
  • E04C2/3405 - spaced apart by profiled spacer sheets
  • B29C35/08 - by wave energy or particle radiation
  • B29C47/00 - Extrusion moulding
  • B29C47/0021 - Flat flexible articles
  • B29C47/0033 - Articles having longitudinal irregularities
  • B29C65/18 - using heated tools
  • B29C66/53461 - joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
  • B29C66/53462 - joining substantially flat covers and substantially flat bottoms to open ends of container bodies
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29K2101/12 - Thermoplastic materials
  • B29L2009/00 - Layered products
  • B29L2024/00 - Articles with hollow walls
  • B29L2031/722 - Decorative or ornamental articles
  • B32B2307/3065 - Flame resistant or retardant, fire resistant or retardant
  • E04C2002/3416 - with cylindrical dimples
  • E04C2002/3422 - with polygonal dimples
  • E04C2002/3427 - with conical dimples
  • E04C2002/3433 - with dimples extending from both sides of the spacer sheet
  • E04C2002/3472 - with multiple layers of profiled spacer sheets
  • E04C2002/3494 - Apparatus for making profiled spacer sheets
  • Y10S428/921 - Fire or flameproofing
  • Y10T428/24661 - Forming, or cooperating to form cells

• US Classifications

  • 267 - Spring devices
  • 428 - Stock material or miscellaneous articles