Earth-boring tools including passively adjustable, aggressiveness-modifying members and related methods
First Claim
Patent Images
1. An earth-boring reamer, comprising:
- a blade; and
a passively adjustable, aggressiveness-modifying member located on the blade, the passively adjustable, aggressiveness-modifying member being movable between a first position in which the reamer exhibits a first aggressiveness and a second position in which the reamer exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member, the passively adjustable, aggressiveness-modifying member configured to modify a depth of cut of cutting elements secured to the blade of the reamer in response to forces applied to the passively adjustable aggressiveness-modifying member as the cutting elements engage with an earth formation.
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Abstract
Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member.
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Citations
17 Claims
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1. An earth-boring reamer, comprising:
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a blade; and a passively adjustable, aggressiveness-modifying member located on the blade, the passively adjustable, aggressiveness-modifying member being movable between a first position in which the reamer exhibits a first aggressiveness and a second position in which the reamer exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member, the passively adjustable, aggressiveness-modifying member configured to modify a depth of cut of cutting elements secured to the blade of the reamer in response to forces applied to the passively adjustable aggressiveness-modifying member as the cutting elements engage with an earth formation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of passively adjusting an aggressiveness of a reamer, comprising:
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causing a force to be exerted on a passively adjustable, aggressiveness-modifying member secured to a blade; and moving the passively adjustable, aggressiveness-modifying member from a first position in which the reamer exhibits a first aggressiveness to a second position in which the reamer exhibits a second, different aggressiveness responsive to causing the force to act on the passively adjustable, aggressiveness-modifying member by modifying a depth of cut of cutting elements secured to the blade of the reamer in response to forces applied to the passively adjustable, aggressiveness-modifying member as the cutting elements engage with an earth formation. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification