the impellers being endless helical springs

Patents Grantslast 30 patents

  • Information Patent Grant

    Feed conveyor

    • Patent number 5,784,996
    • Issue date Jul 28, 1998
    • CTB, Inc.
    • Michael E. Krehl
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Toner storage device and supply mechanism for image forming

    • Patent number 5,729,804
    • Issue date Mar 17, 1998
    • Seiko Epson Corporation
    • Tomoe Aruga
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Feed conveyor

    • Patent number 5,605,113
    • Issue date Feb 25, 1997
    • CTB, Inc.
    • Michael E. Krehl
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Image forming apparatus with toner transport mechanism incorporated...

    • Patent number 5,537,191
    • Issue date Jul 16, 1996
    • Seiko Epson Corporation
    • Tomoe Aruga
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Intake cup apparatus

    • Patent number 4,667,623
    • Issue date May 26, 1987
    • Chore-Time Equipment, Inc.
    • Ray E. Swartzendruber
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Rotating helical conveyor system

    • Patent number 4,640,230
    • Issue date Feb 3, 1987
    • Chore-Time Equipment, Inc.
    • Gerardus H. Van Rooijen
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Feed distribution apparatus

    • Patent number 4,495,894
    • Issue date Jan 29, 1985
    • Chore-Time Equipment, Inc.
    • Ray E. Swartzendruber
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    2232606

    • Patent number 2,232,606
    • Issue date Feb 18, 1941
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL