US 11,746,553 B1
Telescopic travel height truss
William P. Donner, Howard, SD (US); Robert W. Donner, Desmet, SD (US); Riley J. Schwader, Howard, SD (US); and Torsten Leines, Maple Grove, MN (US)
Assigned to CW10K40 LLC, Paracorp Incorporated, Camden, DE (US)
Filed by CW10K40 LLC, Camden, DE (US)
Filed on Sep. 30, 2021, as Appl. No. 17/490,067.
Claims priority of provisional application 63/085,682, filed on Sep. 30, 2020.
Int. Cl. E21B 19/15 (2006.01); E04H 12/34 (2006.01)
CPC E04H 12/345 (2013.01) [E21B 19/155 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a frame having a first end and a second end;
a boom connected to the frame, the boom having a first portion that can be vertically elevated relative to the frame and a second portion that is pivotably connected to the frame and which remains generally in place vertically relative to the frame;
a travel height truss including:
an outer truss having first and second ends and further including at least two partially hollow outer rails, the outer truss being pivotably connected to the second end of the frame such that extension of a lift cylinder causes the second end of the outer truss to pivot upwardly with respect to the first end of the outer truss;
an inner height carriage slidingly positioned within the outer truss and having a first side and a second side, and a first end that is adjacent the outer truss and a second end that is adjacent the boom; and
at least one travel height cylinder having a first end and a second end, in which hydraulic expansion of the travel height cylinder causes the inner height carriage to slidingly extend outwardly from the outer truss;
wherein the second end of the inner height carriage is pivotally connected to the boom at a fixed point by a brace, and the second side of the inner height carriage comprises at least one pipe guide which extends from the inner height carriage in a direction away from the outer truss.