Patents by Inventor David J. Render

David J. Render 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).

  • Publication number: 20260132001
    Abstract: A method of reconditioning a spreader beam can include multiple steps. In one embodiment, the method can include maintaining an arcuate orientation of a first plurality of suspension cables wherein the first plurality of suspension cables is engaged with a first plurality of sheaves of the spreader beam; maintaining an arcuate orientation of a second plurality of suspension cables wherein the second plurality of suspension cables is engaged with a second plurality of sheaves of the spreader beam; disassembling the spreader beam; and removing the first and second pluralities of sheaves from the first and second pluralities of suspension cables.
    Type: Application
    Filed: October 30, 2025
    Publication date: May 14, 2026
    Applicant: Steel Equipment Specialists LLC
    Inventors: John W. SANOR, William Jacob EYER, IV, David D. GINGERICH, David J. RENDER
  • Patent number: 12595159
    Abstract: A spreader beam and related method provide a simplified repair or rebuilding capability for wear parts of the spreader beam. The disclosed spreader beam includes removable sheave nests containing sheaves, which are the wear parts in a spreader beam. The disclosed spreader beam saves time and costs since an entire spreader beam need not be transported to a repair shop, rather only the removable sheave nests, or only the sheaves. In one embodiment, sheaves and sheave nests may be removed and replaced without the need for unwinding supporting cables.
    Type: Grant
    Filed: September 20, 2024
    Date of Patent: April 7, 2026
    Assignee: Steel Equipment Specialists LLC
    Inventors: John W. Sanor, William Jacob Eyer, IV, David D. Gingerich, David J. Render
  • Publication number: 20250282009
    Abstract: A spreader beam and related method provide a simplified repair or rebuilding capability for wear parts of the spreader beam. The disclosed spreader beam includes removable sheave nests containing sheaves, which are the wear parts in a spreader beam. The disclosed spreader beam saves time and costs since an entire spreader beam need not be transported to a repair shop, rather only the removable sheave nests, or only the sheaves. In one embodiment, sheaves and sheave nests may be removed and replaced without the need for unwinding supporting cables.
    Type: Application
    Filed: September 20, 2024
    Publication date: September 11, 2025
    Applicant: Steel Equipment Specialists LLC
    Inventors: John W. Sanor, William Jacob Eyer, IV, David D. Gingerich, David J. Render
  • Publication number: 20250282582
    Abstract: A spreader beam and related method provide a simplified repair or rebuilding capability for wear parts of the spreader beam. The disclosed spreader beam includes removable sheave nests containing sheaves, which are the wear parts in a spreader beam. The disclosed spreader beam saves time and costs since an entire spreader beam need not be transported to a repair shop, rather only the removable sheave nests, or only the sheaves. In one embodiment, sheaves and sheave nests may be removed and replaced without the need for unwinding supporting cables.
    Type: Application
    Filed: September 20, 2024
    Publication date: September 11, 2025
    Applicant: Steel Equipment Specialists LLC
    Inventors: John W. Sanor, William Jacob Eyer, IV, David D. Gingerich, David J. Render