US 12,454,808 B2
Rotary ditching attachment for a tool manipulating arm
Timothy D. Davis, St. Joseph, MO (US); Tyler Austin Mejia, St. Joseph, MO (US); Steven R. Walton, Olathe, KS (US); Tony Shirk, Clarksdale, MO (US); and Jacob D. Herzog, St. Joseph, MO (US)
Assigned to Herzog Railroad Services, Inc., St. Joseph, MO (US)
Filed by Herzog Railroad Services, Inc., St. Joseph, MO (US)
Filed on Aug. 31, 2022, as Appl. No. 17/823,872.
Claims priority of provisional application 63/256,063, filed on Oct. 15, 2021.
Prior Publication US 2023/0122672 A1, Apr. 20, 2023
Int. Cl. E02F 5/08 (2006.01); E02F 5/14 (2006.01)
CPC E02F 5/08 (2013.01) [E02F 5/14 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A ditching attachment for a tool manipulating arm, the ditching attachment comprising:
first and second excavating heads rotatably mounted in spaced relation on first and second sides of a central support, the first excavating head rotating about a first excavating head axis and the second excavating head rotating about a second excavating head axis; and
a rotating mount including a first portion, releasably connectable to the manipulating arm and a second portion releasably connectable to the central support, the second portion of the rotating mount, rotatable relative to the first portion about a mount axis extending perpendicular to the first excavating head axis and the second excavating head axis;
wherein the second portion of the rotating mount is selectively rotatable about the mount axis to rotate the first and second excavating heads from a first orientation in which the axes of rotation of the first and second excavating heads extend parallel to a direction of movement of the rotary ditching tool relative to the ground in forming a ditch, to a second orientation in which the axes of rotation of the first and second excavating heads are offset at an acute angle from the direction of movement of the rotary ditching tool relative to ground to increase an excavating width of the first and second excavating heads in the direction of movement of the rotary ditching tool relative to the ground.