Patents by Inventor Steven C. Yerington

Steven C. Yerington 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: 5921706
    Abstract: Apparatus and methods for recycling concrete pavement in a coordinated procession include a breaker which turns the concrete into rubble first backhoe which rips up and cuts the concrete to rubble chunks, then another backhoe loads the chunks into a self-propelled crusher. If the concrete is reinforced with metallic structures, the first backhoe cuts those along with the concrete. The crusher separates the concrete from any steel and fines in the rubble. The crusher discharges the steels in collection bins mounted thereon. Various bins and ways of dumping them are disclosed. The crushed concrete is discharged to the roadway as multi-gradated aggregate. The crusher can also be made self-leveling by a slope control, slope sensors, and hydraulic cylinders arranged thereon in a closed loop feedback circuit.
    Type: Grant
    Filed: November 15, 1997
    Date of Patent: July 13, 1999
    Assignees: Manatts, Inc., Duit Construction Co., Inc.
    Inventors: Michael J. Manatt, James A. Duit, Anthony J. Manatt, Steven J. Rhoads, Steven C. Yerington
  • Patent number: 5762446
    Abstract: Apparatus and methods for recycling concrete pavement in a coordinated procession include a breaker which turns the concrete into rubble first backhoe which rips up and cuts the concrete to rubble chunks, then another backhoe loads the chunks into a self-propelled crusher. If the concrete is reinforced with metallic structures, the first backhoe cuts those along with the concrete. The crusher separates the concrete from any steel and fines in the rubble. The crusher discharges the steels in collection bins mounted thereon. Various bins and ways of dumping them are disclosed. The crushed concrete is discharged to the roadway as multi-gradated aggregate. The crusher can also be made self-leveling by a slope control, slope sensors, and hydraulic cylinders arranged thereon in a closed loop feedback circuit.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: June 9, 1998
    Assignees: Manatts Inc., Duit Construction co.
    Inventors: Michael J. Manatt, James A. Duit, Anthony J. Manatt, Steven J. Rhoads, Steven C. Yerington