Patents by Inventor Leonard J. Eisenman

Leonard J. Eisenman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4230360
    Abstract: A trailer for receiving and hauling bulk material. The trailer includes an elongated bed with an external skeletal frame. Along with the skeletal frame, two truss members are provided on opposite longitudinal sides of the bed. Each truss includes downwardly converging truss members that are affixed at opposite upper ends to the horizontal top rail of the skeletal frame. The truss members converge downwardly to ends that meet at points below the bottom wall of the bed. These ends are affixed to one another and are situated at the approximate longitudinal center of the trailer. Upright web members extend between the top rails and truss members at longitudinally spaced locations along the trailer. A transverse tie member is also provided extending between the joined lower ends of the truss members across the width of the trailer below the bottom wall of the bed.
    Type: Grant
    Filed: March 6, 1979
    Date of Patent: October 28, 1980
    Inventor: Leonard J. Eisenman
  • Patent number: 4055265
    Abstract: A bulk bed for receiving and discharging bulk quantities of articles such as sugar beets, potatoes, grain, and other material that may be stored in bulk condition. The bulk bed includes an upwardly open bin having downwardly converging side walls. An endless conveyor belt extends along a bottom wall of the bin. It is utilized to urge the material toward a discharge end of the bin. Material exits through a door at one end of the bin. The conveyor belt is made up of a multiplicity of overlapped sections of belting material that are rigidly connected at their leading edges to an endless chain. The chain is in meshing engagement with sprockets at opposite ends of the bin. The belting sections include trailing edges that are not fixed to the chains and are thus able to drop clear of the chain as it moves around the conveyor discharge end. This feature serves to clear dirt and other material from the area beneath the belt working flight and to prevent binding of the chain links.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: October 25, 1977
    Inventor: Leonard J. Eisenman