US 12,264,584 B2
Quick disconnect Kelly bar system
Nathan P Stephens, Post Falls, ID (US); Jonathan Andring, Cocolalla, ID (US); Benjamin John Wilson, Hayden, ID (US); Todd Eric Gorman, Worley, ID (US); and Daniel James Bradburn, Medical Lake, WA (US)
Assigned to BAY SHORE SYSTEMS INC., Rathdrum, ID (US)
Filed by Bay Shore Systems Inc., Rathdrum, ID (US)
Filed on Apr. 7, 2022, as Appl. No. 17/715,793.
Claims priority of provisional application 63/173,911, filed on Apr. 12, 2021.
Prior Publication US 2022/0325581 A1, Oct. 13, 2022
Int. Cl. E21B 7/02 (2006.01); E02F 3/36 (2006.01); E02F 3/96 (2006.01)
CPC E21B 7/028 (2013.01) [E02F 3/3609 (2013.01); E02F 3/96 (2013.01); E21B 7/023 (2013.01); E21B 7/024 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A construction attachment for a light construction machine, comprising:
a quick disconnect mounting plate for connecting the construction attachment to a hitch of the light construction machine;
a pivotable coupling assembly connected to the quick disconnect mounting plate;
an extendable mast connected to the pivotable coupling assembly at a first end of the extendable mast, and to a headblock structure at a second end of the extendable mast;
a Kelly-bar assembly connected to the headblock structure, and
one or more motors attached to the headblock structure, wherein the one or more motors are used to control rotation of the Kelly-bar assembly;
wherein the headblock structure is rigidly attached to the extendable mast, and the Kelly-bar assembly extends from the headblock structure.