3857658

Information

• Patent Grant
• 3857658

• References
• Source

• Patent Number

  3,857,658

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • B29C45/164 - The moulding materials being injected simultaneously
  • B29C45/77 - of velocity or pressure of moulding material
  • F15B11/00 - Servomotor systems without provision for follow-up action; Circuits therefor
  • F15B21/087 - Control strategy
  • B29C43/58 - Measuring, controlling or regulating
  • B29C2043/5833 - movement of moulds or mould parts
  • B29C2045/562 - Velocity profiles of the compression stroke
  • F15B2211/20546 - variable capacity
  • F15B2211/20576 - with multiple pumps
  • F15B2211/2656 - by control of the pumps
  • F15B2211/30525 - Directional control valves
  • F15B2211/31576 - having a single pressure source and a single output member
  • F15B2211/322 - actuated by biasing means
  • F15B2211/55 - for limiting a pressure up to a maximum pressure

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus