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Mobile apparatus for pneumatic conveyance of gravel or similar granular material

  • US 6,089,795 A
  • Filed: 10/03/1997
  • Issued: 07/18/2000
  • Est. Priority Date: 10/03/1997
  • Status: Expired due to Fees
First Claim
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1. A mobile apparatus for pneumatically conveying solid or semi-solid material, said apparatus comprising:

  • (a) a vehicle base, said vehicle base comprising an over-the-road vehicle chassis with cab and drive engine suitable for moving said vehicle to a pre-selected remote location;

    (b) a primary hydraulic power generator mounted on said vehicle base;

    (c) a hopper mounted on said vehicle base, said hopper having downwardly sloping lower sidewalls ending a a hopper bottom, said hopper adapted for receiving and temporarily holding a charge volume of said solid or semi-solid material to be conveyed before discharge out through sid hopper bottom;

    (d) a hydraulically driven air blower mounted on said vehicle base, said air blower adapted to intake ambient air and to output air under pressure;

    (e) a pneumatic uptake tube, said pneumatic uptake tube adapted to receive said output air under pressure from said air blower and entraining said solid or semi-solid material to be conveyed as said solid or semi-solid material is discharged from said hopper;

    (f) a hydraulically driven transfer mechanism for urging said solid or semi-solid material to be conveyed from said hopper to said pneumatic uptake tube, said transfer mechanism further comprising a hydraulically driven adjustable speed auger rotatably mounted in said hopper on a substantially vertically oriented axially extending shaft having a lower end, said lower end of said shaft extending substantially to said hopper bottom to enable said auger, upon rotation, to urge the discharge of said solid or semi-solid materials downwardly and outwardly therefrom.

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