US 12,442,250 B2
Blasthole drill compressor drive system
Arnold Roberson Law, Gainesville, FL (US)
Assigned to Sandvik Mining and Construction USA, LLC, Alachua, FL (US)
Filed by SANDVIK MINING AND CONSTRUCTION USA, LLC, Alachua, FL (US)
Filed on Apr. 18, 2023, as Appl. No. 18/135,812.
Claims priority of provisional application 63/333,793, filed on Apr. 22, 2022.
Prior Publication US 2023/0340836 A1, Oct. 26, 2023
Int. Cl. E21B 7/02 (2006.01); F04C 15/00 (2006.01); F04C 28/06 (2006.01)
CPC E21B 7/022 (2013.01) [E21B 7/025 (2013.01); F04C 15/0061 (2013.01); F04C 28/06 (2013.01); F04C 2270/051 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A drill rig comprising:
an engine;
a compressor; and
a connection assembly coupled between the engine and the compressor, the connection assembly including a ring gear coupled to the compressor and a clutch connected to the engine, wherein a starter is connected to the ring gear and arranged to engage the ring gear to rotate the compressor to a predetermined rotation speed before the clutch is engaged, wherein the predetermined rotation speed of the compressor is the same as a speed of the engine.