3728509

Information

• Patent Grant
• 3728509

• References
• Source

• Patent Number

  3,728,509

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1973
  51 years ago

• CPC

  • H01H13/785 - characterised by the material of the contacts
  • H01H1/029 - comprising conducting material dispersed in an elastic support or binding material
  • H01H13/702 - with contacts carried by or formed from layers in a multilayer structure
  • H01H13/80 - characterised by the manner of cooperation of the contacts
  • H01H13/703 - characterised by spacers between contact carrying layers
  • H01H2201/002 - bounceless
  • H01H2201/016 - Roughened contact surface
  • H01H2201/032 - Conductive polymer Rubber
  • H01H2203/02 - Interspersed fingers
  • H01H2211/028 - Contacts in depressions of layers
  • H01H2217/01 - Off centre actuation
  • H01H2221/002 - integral with membrane
  • H01H2221/064 - Limitation of actuating pressure
  • H01H2229/024 - Packing between substrate and membrane
  • H01H2229/026 - Riveting
  • H01H2229/028 - Adhesive

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 439 - Electrical connectors