3425640

Information

• Patent Grant
• 3425640

• References
• Source

• Patent Number

  3,425,640

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1969
  55 years ago

• CPC

  • E05D7/12 - to allow easy detachment of the hinge from the wing or the frame
  • B65G53/00 - Conveying materials in bulk through troughs, pipes, or tubes by floating the materials, or by flows of gas, liquid, or foam
  • B65G53/48 - Screws or like rotary conveyors
  • D21B1/06 - by dry methods
  • B65G2812/1625 - Feeding or discharging means
  • E05Y2800/26 - Form, shape

• US Classifications

  • 241 - Solid material comminution or disintegration
  • 222 - Dispensing
  • 406 - Conveyors: fluid current
  • 414 - Material or article handling
  • 425 - Plastic article or earthenware shaping or treating: apparatus