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US 11,090,733 B2Granted
Integrated drill chuck
AssigneeRoyal Hydraulics Service and Manufacturing Company, Inc.
InventorsGeorge Morrell, Mark Crable
Life of this patent
Estimating the term…
Abstract
An integrated drill chuck for installing mine roof bolts includes a single integrated piece, the single integrated piece including a body defining a receiving cavity, where the receiving cavity is configured to receive and secure a bit having a square-shaped end and a bit having a hex-shaped end. A drill for installing mine roof bolts is also disclosed. A method for installing mine roof bolts is also disclosed.
Claims18
A drill for installing mine roof bolts comprising:
- a drill body comprising a chuck cavity;
- and
- a drill chuck disposed in the chuck cavity comprising a monolithic piece, the monolithic piece comprising a body defining a receiving cavity, wherein at least a portion of the receiving cavity has a square-shaped cross-section for receiving and securing a bit having a square-shaped end and at least a portion of the receiving cavity has a hex-shaped cross-section for receiving and securing a bit having a hex-shaped end;
- and
- at least one roller or ball bearing positioned in the chuck cavity that engages the drill chuck to secure the drill chuck in the chuck cavity.
2 more elements
A method of installing mine roof bolts comprising:
- providing a drill comprising a chuck cavity and at least one roller or ball bearing positioned in the chuck cavity;
- inserting a drill chuck comprising a monolithic piece into the chuck cavity such that the at least one roller or ball bearing engages the drill chuck to secure the drill chuck in the chuck cavity, the monolithic piece comprising a body defining a receiving cavity, wherein at least a portion of the receiving cavity has a square-shaped cross-section for receiving and securing a bit having a square-shaped end and at least a portion of the receiving cavity has a hex-shaped cross-section for receiving and securing a bit having a hex-shaped end;
- inserting a drill bit having the hex-shaped end into the receiving cavity;
- drilling a hole into a formation using the drill bit;
- removing the drill bit from the receiving cavity;
- inserting a mine roof bolt having the square-shaped end into the receiving cavity;
- and
- installing the mine roof bolt into the formation by inserting the mine roof bolt into the hole.
5 more elements
Dependencies are inferred from the claim text.