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US 10,538,969 B2Granted
Stacked-plate reamer
AssigneeThe Charles Machine Works, Inc.
InventorsGreg L. Slaughter, Jr., Travis W. Woodson, Chapman P. Hancock
Life of this patent
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Abstract
A stacked-plate system for a backreamer. The backreamer has a set of plates disposed about a central shaft for providing fluid for use in reaming operations. A distributor plate forms a cavity within a plate assembly for receiving fluid from the central shaft through radial fluid ports. Fluid from the cavity is then expelled through nozzles that overlay the cavity in a separate plate. The direction of fluid flow at the nozzles is axial, rather than toward the sidewall of the enlarged bore.
Claims25
A reamer comprising:
- a central shaft having a radial fluid passage;
- a distributor plate disposed about the central shaft, the distributor plate having
- an interior cutaway portion disposed to create an internal void in fluid communication with the radial fluid passage;
- a cutter;
- and
- a nozzle formed proximate the cutter, wherein the nozzle is in fluid communication with the internal void of the distributor plate and is substantially perpendicular to the radial fluid passage and substantially parallel to the central shaft.
3 more elements
A reamer comprising:
- a rotatable central shaft having a radial fluid passage;
- a plurality of cutters disposed about the central shaft such that the cutters rotate with the central shaft;
- a plurality of nozzles disposed proximate the cutters, in which at least one of the plurality of nozzles is substantially parallel to the central shaft;
- and
- a distributor plate disposed about the central shaft;
- the distributor plate having an interior cutaway portion disposed to create an internal void in fluid communication with the radial fluid passage and the plurality of nozzles.
3 more elements
A reamer comprising:
- a central shaft having a radial fluid passage;
- a first layer disposed about the central shaft, having a nozzle formed through the first layer;
- a second layer disposed about the central shaft;
- and
- a distributor layer disposed about the central shaft between the first layer and the second layer, the distributor layer having an interior cutaway portion disposed to create an internal void bounded by the first layer, the second layer, the central shaft, and the distributor layer, the internal void in fluid communication with the radial fluid passage and the nozzle.
2 more elements
Dependencies are inferred from the claim text.