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1
WO2012012774A3
Publication/Patent Number: WO2012012774A3
Publication date: 2013-03-14
Application number: 2011045100
Filing date: 2011-07-22
Abstract: A polycrystalline diamond cutting (10) element of a drill bit (12) of a downhole drilling tool is provided. The PDC element having a sub strate (24)
2
WO2012056196A3
Publication/Patent Number: WO2012056196A3
Publication date: 2013-06-27
Application number: 2011001531
Filing date: 2011-10-25
Abstract: A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment (54) packed therein along at least one working surface thereof. The cutting element (50) may be formed by positioning the diamond table on the substrate (24) and bonding the diamond table onto the substrate (24) such that the polycrystalline diamond segment (54) is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate (24). A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached ...more ...less
3
WO2012012774A2
Publication/Patent Number: WO2012012774A2
Publication date: 2012-01-26
Application number: 2011045100
Filing date: 2011-07-22
Abstract: A polycrystalline diamond cutting (10) element of a drill bit (12) of a downhole drilling tool is provided. The PDC element having a sub strate (24)
4
WO2012056196A2
Publication/Patent Number: WO2012056196A2
Publication date: 2012-05-03
Application number: 2011001531
Filing date: 2011-10-25
Abstract: A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment (54) packed therein along at least one working surface thereof. The cutting element (50) may be formed by positioning the diamond table on the substrate (24) and bonding the diamond table onto the substrate (24) such that the polycrystalline diamond segment (54) is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate (24). A polycrystalline-diamond cutting clement (50) is disclosed for a drill bit of a downhole tool. The cutting element (50) includes a substrate (24) and a diamond table bonded to the substrate (24). The diamond table includes a diamond filler with at least one leached ...more ...less
5
US8066702B2
Publication/Patent Number: US8066702B2
Publication date: 2011-11-29
Application number: 12/033,232
Filing date: 2008-02-19
Abstract: A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. The invention also includes a method of activating electrodes in the electrical stimulation lead whereby an ablative lesion can be formed in a desired shape and size. The invention further includes a method of managing pain in a sacrum of a patient, and a method of assembling an electrical stimulation device. A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely ...more ...less