Patents by Inventor Esler C. Walker, Jr.

Esler C. Walker, Jr. 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).

  • Tow trailer assembly
    Patent number: 7534084
    Abstract: A modular tow trailer assembly tows cargo behind a motor vehicle. A base assembly pivotally connects to a fork assembly. A hydraulic lifting cylinder moves the wheels downward relative to the fork assembly to raise the fork assembly into a towing position with the load substantially centered over the trailer's wheels. The tow trailer is readily partially disassembled for fitting within a cargo container and transporting within a cargo carrier in field conditions.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: May 19, 2009
    Inventors: James C. Brown, Esler C. Walker, Jr.
  • Tow trailer assembly
    Patent number: 7326022
    Abstract: A modular tow trailer assembly tows cargo behind a motor vehicle. A base assembly pivotally connects to a fork assembly. A hydraulic lifting cylinder moves the wheels downward relative to the fork assembly to raise the fork assembly into a towing position with the load substantially centered over the trailer's wheels. The tow trailer is readily partially disassembled for fitting within a cargo container and transporting within a cargo carrier in field conditions.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: February 5, 2008
    Inventors: James C. Brown, Esler C. Walker, Jr.
  • Tow trailer for transporting pallets
    Patent number: 5584639
    Abstract: A tow trailer assembly for towing a single pallet of material behind an automobile or truck and having a substantially rigid fork frame with apparatus for connecting the trailer to the towing vehicle at one end and forks for engaging and lifting the pallet at the other end. A wheel support frame is pivotally connected to the fork frame and a hydraulic lifting cylinder is provided for moving the wheels downward relative to the fork frame to raise the fork frame into a towing position with the load substantially centered over the trailer's wheels.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: December 17, 1996
    Inventor: Esler C. Walker, Jr.