3890892

Information

• Patent Grant
• 3890892

• References
• Source

• Patent Number

  3,890,892

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • B29C66/8161 - said pressing elements being supported or backed-up by springs or by resilient material
  • B29C59/04 - using rollers or endless belts
  • B29C65/08 - using ultrasonic vibrations
  • B29C65/081 - having a component of vibration not perpendicular to the welding surface
  • B29C65/085 - using a rotary sonotrode
  • B29C65/7443 - by means of ultrasonic vibrations
  • B29C65/749 - Removing scrap
  • B29C66/30623 - in the form of numbers
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/81433 - being toothed
  • B29C66/8362 - Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
  • B44B5/0066 - producing a vibratory motion
  • B44C1/24 - Pressing or stamping ornamental designs on surfaces
  • G03B21/32 - Details specially adapted for motion-picture projection
  • B29C65/086 - using a rotary anvil
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/9513 - characterised by specific vibration frequency values or ranges
  • B29K2001/12 - Cellulose acetate

• US Classifications

  • 101 - Printing
  • 346 - Recorders