3649430

Information

• Patent Grant
• 3649430

• References
• Source

• Patent Number

  3,649,430

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • E04B1/86 - slab-shaped
  • A47B96/205 - Composite panels, comprising several elements joined together
  • B32B15/08 - of synthetic resin
  • E04B1/8409 - sheet-shaped
  • E04B1/98 - against vibrations or shocks against mechanical destruction
  • F16L59/08 - Means for preventing radiation
  • A47B2220/13 - Sound or noise reduction or dampening
  • E04B2001/8461 - layered
  • E04B2001/848 - the cavities opening onto the face of the element
  • Y10T428/12326 - with provision for limited relative movement between components
  • Y10T428/12347 - Plural layers discontinuously bonded [e.g., spot-weld, mechanical fastener, etc.]
  • Y10T428/12361 - having aperture or cut
  • Y10T428/12444 - Embodying fibers interengaged or between layers [e.g., paper, etc.]
  • Y10T428/12549 - Adjacent to each other
  • Y10T428/24298 - Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
  • Y10T428/24331 - including nonapertured component

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 181 - Acoustics