Material recovery apparatus

{
  "publication_number": "US4947903A",
  "country": "US",
  "kind": "A",
  "title": "Material recovery apparatus",
  "abstract": "A loose material recovery apparatus such as for recovering foam plastic packaging elements has an overhead bin for containing the material. The bin has a storage chamber for storing the material and an outlet from which the material in the bin is dispensed. A vacuum assembly above the storage chamber includes a container having a bottom door, an actuating member, and a motor. A storage compartment is defined within the container between the motor and the bottom door. The bottom door is mounted for movement between a closed position for retaining the material in the storage compartment and an open position allowing the material to fall from the compartment into the bin storage chamber. When the motor is energized movement is imparted to the actuating member to close the bottom door and create a vacuum in the storage compartment for drawing material to be recovered into the compartment through a suction hose.",
  "claims": [
    "1. A loose material recovery apparatus comprising: an overhead bin for containing said material, said bin having a storage chamber for storing the material; a vacuum assembly above the storage chamber, said vacuum assembly further comprising a container having a side wall and a bottom door, an actuating member, and a motor; means for mounting the motor to said container and spaced above said bottom door to define a storage compartment therebetween within said container; the sidewall of the container being substantially impervious to the passage of said material therethrough; a suction hose connected to said container and communicating with said compartment, said suction hose directing the material to be recovered to said compartment; means for mounting said bottom door for movement between a closed position for retaining said material in said compartment, and an open position allowing said material to fall from said compartment into said bin storage chamber; said motor, when energized, creating a vacuum in said compartment with said bottom door closed, means for mounting said actuating member to said container for movement in response to energizing said motor, and means in response to movement of said actuating member with said motor energized for closing said bottom door; whereby, with said motor energized the door closes and a vacuum is created within said compartment for drawing material to be recovered into said compartment.",
    "2. The apparatus of claim 1 wherein said actuating member is a lid against which air from the motor when energized impinges to raise said member.",
    "3. The apparatus of claim 1 further comprising a linkage between said actuating member and said bottom door, whereby movement of said actuating member imparts movement to said door through said linkage.",
    "4. The apparatus of claim 3 wherein said bottom door is hinged to said container for pivotal movement between closed and open position, and wherein said linkage is connected near said hinge such that relatively small movement of said actuating member imparts relatively large pivotal movement to said door.",
    "5. The apparatus of claim 1 wherein said motor is mounted to a barrier wall that separates said container into said storage compartment and a second compartment between said wall and said actuating member.",
    "6. The apparatus of claim 1 wherein said door is mounted to said container for pivotal movement between closed and open positions.",
    "7. The apparatus of claim 6 wherein said door is counterweighted for ease in closing upon energizing said motor.",
    "8. The apparatus of claim 1 wherein said actuating member further comprises a member mounted for vertical movement in response to energizing and deenergizing said motor.",
    "9. The apparatus of claim 8 wherein said member is a ball vertically movable within a tube, and further comprising means for connecting said ball to said door whereby vertical movement of said ball imparts movement to said door.",
    "10. A loose material recovery apparatus comprising: an overhead bin for containing said material, said bin having a storage chamber for storing the material; a vacuum assembly above the storage chamber, said vacuum assembly further comprising a container having a door at the bottom thereof, a lid at the top thereof, and a vacuum motor, a barrier wall dividing said container into a lower storage compartment and an upper compartment, said motor mounted in said barrier wall such that when energized the motor draws air from the lower storage compartment to create a vacuum therein with the lower door closed and impinges said air against said lid, means for mounting said bottom door for movement between a closed position for retaining said material in said storage compartment and an open position allowing said material to fall from said storage compartment into said bin storage chamber, means for mounting said lid to said container for movement in response to energizing said motor, and linkage means connected between said lid and said bottom door such that movement of said lid by impingement of air thereon upon energizing said motor imparts movement of said lower door to a closed position; and a suction hose connected to said vacuum assembly and communicating with said storage compartment for directing the material to be covered to said storage compartment; whereby, with said motor energized, the lid moves by impingement of air thereon and acts through said linkage to close said bottom door, thus creating a vacuum within said storage compartment for drawing material to be recovered into said compartment.",
    "11. The apparatus of claim 10 wherein upon deenergizing said motor said bottom door opens under its own weight allowing the recovered material to fall into said bin storage chamber.",
    "12. The apparatus of claim 11 wherein said bottom door is hinged to said container for pivotal movement between closed and open positions, and wherein said linkage is connected near said hinge such that relatively small movement of said lid imparts relatively large pivotal movement to said door.",
    "13. The apparatus of claim 12 wherein said door is counterweighted for ease in closing upon energizing said motor.",
    "14. A vacuum assembly for the recovery of loose material, said vacuum assembly comprising a container having a bottom door, an actuating member, and a motor, means for mounting the motor within said container and spaced above said bottom door to define a storage compartment therebetween within said container, means for mounting said bottom door to said container for pivotal movement between a closed position for retaining said material in said compartment and an open position allowing said material to fall from said compartment, said motor when energized creating a vacuum in said compartment with said bottom door closed, means for mounting said actuating member to said container for movement in response to energizing said motor, and means to response to movement of said actuating member with said motor energized for closing said bottom door, whereby, with said motor energized the door closes and a vacuum is created within said compartment for drawing material to be recovered into said compartment.",
    "15. The vacuum assembly of claim 14 wherein said actuating member is a lid against which air from the motor when energized impinges to raise said member.",
    "16. The vacuum assembly of claim 14 further comprising a linkage between said actuating member and said bottom door, whereby movement of said actuating member imparts movement to said door through said linkage.",
    "17. The vacuum assembly of claim 16 wherein said bottom door is hinged to said container, and wherein said linkage is connected near said hinge such that relatively small movement of said actuating member imparts relatively large pivotal movement to said door.",
    "18. The vacuum assembly of claim 14 wherein said motor is mounted to a barrier wall that separates said container into said storage compartment and a second compartment between said wall and said actuating member.",
    "19. The vacuum assembly of claim 14 wherein said door is counterweighted for ease in closing upon energizing said motor.",
    "20. The vacuum assembly of claim 14 wherein said actuating member further comprises a member mounted for vertical movement in response to energizing and deenergizing said motor.",
    "21. The vacuum assembly of claim 20 wherein said member is a ball vertically movable within a tube, and further comprising means for connecting said ball to said door whereby vertical movement of said ball imparts movement to said door.",
    "22. A vacuum assembly for the recovery of loose material, said vacuum assembly comprising a container having a bottom door, a lid, and a motor, means for mounting the motor within said container and spaced above said bottom door to define a storage compartment therebetween within said container, means for mounting said bottom door for movement between a closed position for retaining said material in said compartment and an open position allowing said material to fall from said compartment, said motor when energized creating a vacuum in said compartment with said bottom door closed, means for mounting said lid to said container for movement in response to energizing said motor, and means in response to movement of said lid with said motor energized for closing said bottom door, whereby, with said motor energized the door closes and a vacuum is created within said compartment for drawing material to be recovered into said compartment.",
    "23. A vacuum assembly for the recovery of loose material, said vacuum assembly comprising a container having a bottom door, an actuating member, and a motor, means for mounting the motor within said container and spaced above said bottom door to define a storage compartment therebetween within said container, said motor being mounted to a barrier wall that separates said container into said storage compartment and a second compartment between said wall and said actuating member, means for mounting said bottom door for movement between a closed position of retaining said material in said compartment and an open position allowing said material to fall from said compartment, said motor when energized creating a vacuum in said compartment with said bottom door closed, means for mounting said actuating member to said container for movement in response to energizing said motor, and means in response to movement of said actuating member with said motor energized for closing said bottom door, whereby, with said motor energized the door closes and a vacuum is created within said compartment for drawing material to be recovered into said compartment."
  ],
  "description_excerpt": "This invention generally relates to an apparatus for the recovery of loose material, and more particularly for the recovery of material such as foam plastic packaging elements of the type used for protecting the contents of a container against damage. Such elements take different physical shapes, some shaped like peanuts, shells, or other suitable shape. However, common characteristics of such elements are that they are small enough to fill the various cavities and voids surrounding the article to be protected within the box or container, they provide effective protection against damage due to impact, they are a plastic foam construction, and they are very light weight. One of the disadvantages of this packaging material is that it easily spills. One familiar way to use this packaging material has been to store the elements in an overhead bin having a bottom opening through which the elements are dispensed. As the boxes or cartons, with the contents to be protected therein, are moved beneath the bin, the packaging elements are dispensed from the bin into the box. Unfortunately, a good many of the elements spill onto the table, conveyor, or floor, and then must be swept up or otherwise cleaned up and either recycled or discarded. The recovery appaaratus of the present invention provides for the easy clean up and recovery of excess or spilled material of this type by means of a unique vacuum assembly. Similarly, the vacuum assembly may be used to remove the material from boxes of previously packaged items for purposes of unpacking the items.",
  "cpc": [
    "B65G 53/24",
    "B65B 37/00"
  ],
  "ipc": [
    "B65B 37/00",
    "B65G 53/24"
  ],
  "assignees": [
    "BECKWITH ROBERT H"
  ],
  "inventors": [
    "BECKWITH ROBERT H"
  ],
  "filing_date": "1988-10-21",
  "publication_date": "1990-08-14",
  "grant_date": "1990-08-14",
  "priority_date": "1988-10-21",
  "application_number": "US-26117088-A",
  "family_id": "22992192",
  "citations": [
    "DE2505984A1",
    "US3304219A",
    "US3381327A",
    "US3556172A",
    "US3667593A",
    "US3816982A",
    "US4141391A",
    "US4142560A",
    "US4194262A",
    "US4691407A",
    "US4704144A",
    "US4813462A"
  ]
}