3825725

Information

• Patent Grant
• 3825725

• References
• Source

• Patent Number

  3,825,725

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1974
  50 years ago

• CPC

  • H05B3/10 - Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
  • D02J13/00 - Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
  • G05D23/19 - characterised by the use of electric means
  • G05D23/1913 - delivering a series of pulses
  • G05D23/24 - the sensing element having a resistance varying with temperature
  • G05F1/452 - with pulse-burst modulation control
  • H05B3/00 - Ohmic-resistance heating
  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/0021 - Flat flexible articles
  • B29C47/02 - incorporating preformed parts or layers
  • B29C2947/92104 - Flow or feed rate
  • B29C2947/92209 - Temperature
  • B29C2947/9238 - Feeding, melting, plasticising or pumping zones
  • B29C2947/9239 - Screw or gear
  • B29C2947/924 - Barrel or housing

• US Classifications

  • 219 - Electric heating
  • 165 - Heat exchange