3294389

Information

• Patent Grant
• 3294389

• References
• Source

• Patent Number

  3,294,389

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1966
  57 years ago

• CPC

  • E04C2/3405 - spaced apart by profiled spacer sheets
  • B29C65/48 - using adhesives
  • 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
  • B32B27/00 - Layered products comprising a layer of synthetic resin
  • B65D81/03 - Wrappers or envelopes with shock-absorbing properties
  • B29C65/4815 - Hot melt adhesives
  • B29C65/483 - Reactive adhesives
  • 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
  • B29C66/54 - Joining several hollow-preforms
  • E04C2002/3416 - with cylindrical dimples
  • E04C2002/3422 - with polygonal dimples
  • E04C2002/3427 - with conical dimples
  • E04C2002/3472 - with multiple layers of profiled spacer sheets
  • E04C2002/3494 - Apparatus for making profiled spacer sheets

• US Classifications

  • 267 - Spring devices