Patents by Inventor William C. Saxman
William C. Saxman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7543660Abstract: A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an associated spindle extending inwardly. A respective cone assembly may be rotatably disposed on each spindle. At least one diverter plug may be disposed in a hole formed in each support arm. A void space may be formed between one end of each diverter plug and the bottom of the associated hole. At least one fluid flow passageway may extend from the surface of the associated support arm to the void space to allow communication of fluid containing debris with the void space. Rotating action of the roller cone drill bit and associated cone assemblies may force packing of debris into the void space which results in biasing the diverter plug outwardly from the associated hole to contact adjacent portions of the associated cone assembly.Type: GrantFiled: February 21, 2007Date of Patent: June 9, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Michael B. Crawford, Mark E. Williams, William C. Saxman, Mark P. Blackman, Gerald L. Pruitt
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Patent number: 7484572Abstract: A roller cone drill bit having a bit body with at least one support arm extending therefrom. Each support arm may have an interior surface and an exterior surface with an associated spindle extending inwardly from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap may be formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly may include a generally circular backface disposed adjacent to the interior surface of the associated support arm. At least one fluid passageway may extend through each support arm to allow communication of fluid from the interior surface to an exterior surface of the support arm. A debris diverter insert having a generally hollow bore may be disposed within each fluid passageway.Type: GrantFiled: February 21, 2007Date of Patent: February 3, 2009Assignee: Halliburton Energy Services, Inc.Inventors: Mark P. Blackman, Mark E. Williams, William C. Saxman, Michael B. Crawford, Gerald L. Pruitt, William W. King, Bruce A. Rohde
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Publication number: 20070261891Abstract: A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an interior surface and exterior surface with an associated spindle extending from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly includes a generally circular back surface disposed adjacent to the interior surface of the associated support arm. A flow diverter groove formed in the interior surface of each support arm spaced from the associated spindle. Each diverter groove having a variable geometry to enhance the flow of fluid containing downhole debris away from the associated real assembly, and each diverter groove having a variable geometry.Type: ApplicationFiled: February 21, 2007Publication date: November 15, 2007Inventors: Mark E. Williams, Michael B. Crawford, William C. Saxman, Mark P. Blackman, Gerald L. Pruitt
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Publication number: 20070193781Abstract: A roller cone drill bit having a bit body with at least one support arm extending therefrom. Each support arm may have an interior surface and an exterior surface with an associated spindle extending inwardly from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap may be formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly may include a generally circular backface disposed adjacent to the interior surface of the associated support arm. At least one fluid passageway may extend through each support arm to allow communication of fluid from the interior surface to an exterior surface of the support arm. A debris diverter insert having a generally hollow bore may be disposed within each fluid passageway.Type: ApplicationFiled: February 21, 2007Publication date: August 23, 2007Inventors: Mark P. Blackman, Mark E. Williams, William C. Saxman, Michael B. Crawford, Gerald L. Pruitt, William W. King, Bruce A. Rohde
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Publication number: 20070193779Abstract: A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an associated spindle extending inwardly. A respective cone assembly may be rotatably disposed on each spindle. At least one diverter plug may be disposed in a hole formed in each support arm. A void space may be formed between one end of each diverter plug and the bottom of the associated hole. At least one fluid flow passageway may extend from the surface of the associated support arm to the void space to allow communication of fluid containing debris with the void space. Rotating action of the roller cone drill bit and associated cone assemblies may force packing of debris into the void space which results in biasing the diverter plug outwardly from the associated hole to contact adjacent portions of the associated cone assembly.Type: ApplicationFiled: February 21, 2007Publication date: August 23, 2007Inventors: Michael B. Crawford, Mark E. Williams, William C. Saxman, Mark P. Blackman, Gerald L. Pruitt
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Patent number: 6536192Abstract: A plastic canister for storing and shipping drill bits, especially roller cone drill bit, has a pin-holder built into the lid of the canister for ease of field dressing the bit. The lid and body of the container are slip fit to one another and indexed to each other for positive positioning in their relationship. Safety features include the use of a conductive plastic polymer, a non-rolling base, mating protrusions and recesses for stacking, recessed areas for strapping, and welded loop handles.Type: GrantFiled: April 27, 2001Date of Patent: March 25, 2003Assignees: Halliburton Energy Services, Inc., Relocation Systems, Inc.Inventors: William W. King, William C. Saxman, Jeffery Peck, James S. Dahlem, Karl D. Knecht, Lee M. Smith, Margaret L. Parks, Mike Jeziorski, Patsy A. Jenner
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Patent number: 6474424Abstract: A rotary cone drill bit for forming a borehole having a bit body with an upper portion adapted for connection to a drill string. A number of support arms extending from the bit body with each support arm having an exterior surface with an opening extending therethrough. A number of cutter cone assemblies equal to the number of support arms with each cutter cone assembly rotatably mounted on a respective spindle projecting generally downwardly and inwardly from each support arm. A ball retainer passageway extending from the opening in the exterior surface of each support arm to allow installing ball bearings through the opening and the ball retainer passageway to rotatably mount each cutter cone assembly on its respective spindle. A ball race formed in the exterior of each spindle between a first outside diameter portion and a second outside diameter portion. The ball retainer passageway intersecting the ball race.Type: GrantFiled: June 3, 1999Date of Patent: November 5, 2002Assignee: Halliburton Energy Services, Inc.Inventor: William C. Saxman
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Patent number: 6415687Abstract: A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure.Type: GrantFiled: February 2, 2001Date of Patent: July 9, 2002Assignee: Dresser Industries, Inc.Inventor: William C. Saxman
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Patent number: 6390209Abstract: A pressure compensating assembly for use in roller cone drilling bits of the sealed bearing type. The compensating assembly includes a hollow body arranged to fit into a cavity in the bit connected with the lubrication system of the bit and the hollow body includes a normally open lubricant passageway extending therethrough. A seal encircles the body on one side of the lubricant passageway and is arranged to sealingly engage the bit and an elastomeric, cup-shaped diaphragm is located on the body and has a lip arranged to sealingly engage the bit on the other side of the lubricant passageway. The diaphragm having a protuberance on the side of the diaphragm facing the passageway and sized to enter and close the passageway. The body, seal, and diaphragm being assembled into a unitary cartridge for introduction into the bit as a unit.Type: GrantFiled: February 28, 2001Date of Patent: May 21, 2002Assignee: Dresser Industries, Inc.Inventor: William C. Saxman
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Publication number: 20020014425Abstract: A plastic canister for storing and shipping drill bits, especially roller cone drill bit, has a pin-holder built into the lid of the canister for ease of field dressing the bit. The lid and body of the container are slip fit to one another and indexed to each other for positive positioning in their relationship. Safety features include the use of a conductive plastic polymer, a non-rolling base, mating protrusions and recesses for stacking, recessed areas for strapping, and welded loop handles.Type: ApplicationFiled: April 27, 2001Publication date: February 7, 2002Inventors: William W. King, William C. Saxman, Jeffery Peck, James S. Dahlem, Karl D. Knecht, Lee M. Smith, Margaret L. Parks, Mike Jeziorski, Patsy A. Jenner
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Patent number: 6311789Abstract: A bit breaker is formed of a U-shaped base and latchable gate which closes the U. When the gate is in a closed position, evenly spaced chocks on both the base and gate protrude into the central cavity of the bit breaker to engage slots formed in the bit. The bit breaker is designed to be used with either roller cone bits or drag bits.Type: GrantFiled: July 9, 1999Date of Patent: November 6, 2001Assignee: Halliburton Energy Services, Inc.Inventor: William C. Saxman
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Publication number: 20010007290Abstract: A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure.Type: ApplicationFiled: February 2, 2001Publication date: July 12, 2001Inventor: William C. Saxman
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Publication number: 20010006124Abstract: A pressure compensating assembly for use in roller cone drilling bits of the sealed bearing type. The compensating assembly includes a hollow body arranged to fit into a cavity in the bit connected with the lubrication system of the bit and the hollow body includes a normally open lubricant passageway extending therethrough. A seal encircles the body on one side of the lubricant passageway and is arranged to sealingly engage the bit and an elastomeric, cup-shaped diaphragm is located on the body and has a lip arranged to sealingly engage the bit on the other side of the lubricant passageway. The diaphragm having a protuberance on the side of the diaphragm facing the passageway and sized to enter and close the passageway. The body, seal, and diaphragm being assembled into a unitary cartridge for introduction into the bit as a unit.Type: ApplicationFiled: February 28, 2001Publication date: July 5, 2001Inventor: William C. Saxman
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Patent number: 6213228Abstract: A pressure compensating assembly for use in roller cone drilling bits of the sealed bearing type. The compensating assembly includes a hollow body arranged to fit into a cavity in the bit connected with the lubrication system of the bit and the hollow body includes a normally open lubricant passageway extending therethrough. A seal encircles the body on one side of the lubricant passageway and is arranged to sealingly engage the bit and an elastomeric, cup-shaped diaphragm is located on the body and has a lip arranged to sealingly engage the bit on the other side of the lubricant passageway. The diaphragm having a protuberance on the side of the diaphragm facing the passageway and sized to enter and close the passageway. The body, seal, and diaphragm being assembled into a unitary cartridge for introduction into the bit as a unit.Type: GrantFiled: July 28, 1998Date of Patent: April 10, 2001Assignee: Dresser Industries Inc.Inventor: William C. Saxman
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Patent number: 6206116Abstract: A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure.Type: GrantFiled: July 13, 1998Date of Patent: March 27, 2001Assignee: Dresser Industries, Inc.Inventor: William C. Saxman
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Patent number: 6092611Abstract: A relief valve for use in roller cone drilling bits of the sealed bearing type and other types of sealed fluid systems. The relief valve includes a valve body arranged to fit into the lubricating system of the bit and an elastomeric valve member having a flow port therein that is normally closed. The valve member includes a flexible lip defining the port that is arranged to permit flow in one direction through the port to relieve pressure above a predetermined value while preventing flow therethrough in the opposite direction.Type: GrantFiled: May 18, 1998Date of Patent: July 25, 2000Assignee: Dresser Industries, Inc.Inventor: William C. Saxman
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Patent number: 5456328Abstract: A drill bit includes a rolling cutter having a plurality of closed-end circumferential rows of teeth protruding from the body of the cutter. At least one of the rows of teeth lies along a path defined either by multiple helical segments or a canted planar periphery.Type: GrantFiled: January 28, 1994Date of Patent: October 10, 1995Assignee: Dresser Industries, Inc.Inventor: William C. Saxman
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Patent number: 5429201Abstract: A drill bit includes a rolling cutter having a plurality of circumferential rows of teeth protruding from the body of the cutter. At least one of the rows of teeth is a closed-end circumferential row located on the surface of the cutter along a closed-end circumferential path. The latter is a non-circular curve defined by a surface intersecting the body of the cutter obliquely with respect to its longitudinal axis.Type: GrantFiled: January 7, 1994Date of Patent: July 4, 1995Assignee: Dresser Industries, Inc.Inventor: William C. Saxman
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Patent number: 4760890Abstract: A cutter assembly for rotary boring of earth. The assembly comprises a rotating cutter having a shaft protruding from the ends of the cutter; and a mounting member for the rotating cutter. The mounting member comprises two legs the ends of which are provided with counter surfaces for the ends portions of the shaft. The assembly further comprises fastening elements provided with a counter surface, the fastening elements being fitted at the ends of the legs for fastening the shaft to the mounting member. In order to provide a self-adjusting and reliable assembly which prevents the turning movement of the shaft, the curvature of the middle portion of the counter surface of the fastening element is so formed that a gap narrowing in the direction of the periphery of the shaft is defined between the shaft and the middle portion of the counter surface of the fastening element. A clutching part extending in the radial direction is arranged at the end of the shaft.Type: GrantFiled: May 18, 1987Date of Patent: August 2, 1988Assignee: Tamrock Inc.Inventor: William C. Saxman
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Patent number: 4509607Abstract: A compressible pressure compensating member is disposed within a sealed lubricant volume enclosing a bearing and seal system of an earth boring apparatus. Lubricant is maintained within the volume by metal face seals so that both the bearing and the seal structure are lubricated thereby. As the lubricant expands, due to thermal expansion under use, the increased pressure is accommodated by compression of the compressible member so that no lubricant is expelled through the seals. When the lubricant cools and contracts, the compensator expands to maintain the lubricant volume at the initially filled level.Type: GrantFiled: August 26, 1983Date of Patent: April 9, 1985Assignee: Dresser Industries, Inc.Inventors: William C. Saxman, Larry J. Parker