3925139

Information

• Patent Grant
• 3925139

• References
• Source

• Patent Number

  3,925,139

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1975
  49 years ago

• CPC

  • B29C66/1122 - Single lap to lap joints
  • B29C65/18 - using heated tools
  • B29C65/7453 - the severing tool being a wire
  • B29C66/4312 - for making flat seams in tubular or hollow articles
  • B29C66/81261 - Thermal properties
  • B29C66/81427 - comprising a single ridge
  • B29C66/8161 - said pressing elements being supported or backed-up by springs or by resilient material
  • B29C66/8227 - using springs
  • B29C66/8242 - Pneumatic or hydraulic drives
  • B29C66/8322 - Joining or pressing tools reciprocating along one axis
  • B29C66/849 - Packaging machines
  • B29C66/872 - Starting or stopping procedures
  • B29C66/91212 - involving measurement means being part of the welding jaws
  • B29C66/91221 - of the parts to be joined
  • B29C66/91313 - by measuring the voltage
  • B29C66/91411 - of the parts to be joined
  • B29C66/91431 - the temperature being kept constant over time
  • B29C66/91641 - the heat or the thermal flux being non-constant over time
  • B29C66/91645 - by steps
  • B29C66/91655 - by controlling or regulating the current intensity
  • B29C66/961 - involving a feedback loop mechanism
  • B65B57/00 - Automatic control, checking, warning, or safety devices
  • B29C66/4322 - by joining a single sheet to itself
  • B29C66/8748 - involving the use of warnings
  • B29C66/92 - by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
  • B29C66/9221 - by measuring the pressure, the force or the mechanical power
  • B29C66/9241 - by controlling or regulating the pressure, the force or the mechanical power
  • B29C66/94 - by measuring or controlling the time

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 053 - Package making
  • 219 - Electric heating
  • 340 - Communications: electrical