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Front discharge transit mixer

  • US 6,152,457 A
  • Filed: 11/13/1998
  • Issued: 11/28/2000
  • Est. Priority Date: 10/02/1996
  • Status: Expired due to Fees
First Claim
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1. A transit mixer apparatus, comprising:

  • an internal combustion engine for propelling the apparatus;

    a vehicle chassis having a front-end portion and a back end portion, said engine coupled to said chassis;

    a plurality of axle assemblies coupled to said chassis, each of said plurality of axle assemblies having at least one ground engagement member associated therewith and adapted to engage ground;

    a material mixing drum coupled to said chassis, said material mixing drum having a front end positioned above said front end portion and a back end positioned above said back end portion, said material mixing drum having an opening at said front end through which material may be loaded into or discharged from said mixing drum, said material mixing drum inclined upwardly toward said front end portion;

    a plurality of air springs coupled between said chassis and said plurality of axle assemblies, each of said plurality of axle assemblies having at least one of said plurality of air springs associated therewith;

    a source of pressurized fluid in communication with said plurality of air springs;

    a central processor, said central processor including a predetermined load value for each of said plurality of axle assemblies;

    a plurality of pressure sensors, one of said plurality of pressure sensors associated with each of said plurality of air springs and adapted for sensing the pressure in the respective air springs and sending a signal to said central processor, wherein said signals are converted to actual load values for each of said plurality of axle assemblies; and

    wherein said actual load values for each of said plurality of axle assemblies are compared to said predetermined load values for each of said plurality of axle assemblies, and upon an axle'"'"'s actual load value exceeding its respective predetermined load value the pressure in said at least one of said plurality of air springs is adjusted to distribute the load to others of said plurality of axle assemblies.

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