Rolling cutter
First Claim
Patent Images
1. A cutting element for a drill bit, comprising:
- an outer support element; and
an inner rotatable cutting element, a portion of which is disposed in the outer support element, the inner rotatable cutting element comprising;
a body having a non-planar cutting face;
wherein the body comprises an ultra hard material body disposed on a substrate, the ultra hard material body forming the non-planar cutting face; and
wherein a radial bearing is formed between a portion of the ultra hard material body and the outer support element.
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Abstract
A cutting element for a drill bit includes an outer support element and an inner rotatable cutting element, a portion of which is disposed in the outer support element, where the inner rotatable cutting element has a body with a non-planar cutting face.
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Citations
20 Claims
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1. A cutting element for a drill bit, comprising:
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an outer support element; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, the inner rotatable cutting element comprising; a body having a non-planar cutting face; wherein the body comprises an ultra hard material body disposed on a substrate, the ultra hard material body forming the non-planar cutting face; and wherein a radial bearing is formed between a portion of the ultra hard material body and the outer support element. - View Dependent Claims (2, 3)
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4. A cutting element for a drill bit, comprising:
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an outer support element; an inner rotatable cutting element, a portion of which is disposed in the outer support element, the inner rotatable cutting element comprising; a non-planar cutting face; a body comprising a shaft portion, the shaft portion having a diameter less than the diameter of the non-planar cutting face; and an axial bearing formed between a portion of the outer support element and the inner rotatable cutting element. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A cutting structure for a cutting tool, comprising:
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an outer support element having a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element; wherein the outer support element further comprises an inner shaft portion extending from the bottom portion into the inner rotatable cutting element. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification