Expandable tool for an earth boring system
First Claim
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1. An expandable tool for an earth boring system, comprising:
- a mandrel comprising a tubular body and an outer diameter;
a plurality of blades disposed about the outer diameter; and
a slidable sleeve positioned around the outer diameter and capable of manipulating the plurality of blades into collapsed and expanded positions;
the slidable sleeve comprises a plurality of interchangeable sections which combine to form a complete toroid around the outer diameter.
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Abstract
In one aspect of the present invention an expandable tool for an earth boring system comprises a mandrel comprising a tubular body and an outer diameter, a plurality of blades disposed about the outer diameter, and a slidable sleeve positioned around the outer diameter and capable of manipulating the plurality of blades into collapsed and expanded positions.
41 Citations
19 Claims
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1. An expandable tool for an earth boring system, comprising:
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a mandrel comprising a tubular body and an outer diameter; a plurality of blades disposed about the outer diameter; and a slidable sleeve positioned around the outer diameter and capable of manipulating the plurality of blades into collapsed and expanded positions; the slidable sleeve comprises a plurality of interchangeable sections which combine to form a complete toroid around the outer diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An expandable tool for an earth boring system, comprising:
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a mandrel comprising a tubular body and an outer diameter; a plurality of blades disposed about the outer diameter; and a slidable sleeve positioned around the outer diameter and capable of manipulating the plurality of blades into collapsed and expanded positions; wherein a plurality of channels are disposed on interior and exterior surfaces of at least one blade of the plurality of blades; and wherein a wedge is formed between a plurality of channels disposed on at least one fin of a plurality of fins and a plurality of channels disposed on the slidable sleeve when at least one blade of the plurality of blades are in an expanded position.
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Specification