Pump Mounted In Vertical Tubular Flow Conduit Removable As Unit By Driving Rod Manipulation Patents (Class 417/448)
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Patent number: 9885353Abstract: A reciprocating well pump assembly has a barrel and a piston reciprocally carried within the barrel between up stroke and down stroke positions. A travelling valve moves with the piston and has a closed position during the up stroke an open position during the down stroke. A relief port extends from a bore of the piston below the travelling valve into the barrel. A valve sleeve mounted around the body of the travelling valve is axially movable between a closed position, closing the tubular body relief port, and an open position, communicating well fluid in the barrel with the well fluid in the bore of the piston. When nearing the top of the stroke, the valve sleeve abuts a stop in the barrel. Continued upward movement of the piston causes the valve sleeve to open the relief port.Type: GrantFiled: July 7, 2015Date of Patent: February 6, 2018Assignee: Baker Hughes, a GE Company, LLCInventors: Steven K. Tetzlaff, Lance T. Robinson, Gary L. James
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Patent number: 9011110Abstract: A downhole pumping assembly has a tubing string with plural barrels which are arranged in-line with the tubing. The tubing string has a seating location adjacent to each barrel. A standing valve arrangement, which includes a standing valve and a seating device, is located with the standing valve adjacent to the lower end of one of the barrels. A plunger has a traveling valve that is located for reciprocation within the one barrel. The plunger has a clearance with each of the barrels so as to form a fluid seal. The plunger reciprocates inside the barrel so as to lift fluid to the surface. Over time, the barrel will exhibit wear. Instead of pulling the entire tubing string to replace the barrel, the standing valve and the plunger are relocated to one of the other barrels located in the tubing string and reciprocation is resumed to resume pumping.Type: GrantFiled: October 24, 2012Date of Patent: April 21, 2015Assignee: Harbison-Fischer, Inc.Inventor: Benny J. Williams
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Patent number: 8142939Abstract: In a fuel cell unit that generates electric power using fuel gas supplied via an anode gas passage and air supplied via a cathode gas passage, an anode-off gas passage is connected to the downstream side of the anode gas passage. An orifice is provided at the anode-off gas passage and anode-off gas is discharged to the downstream side via the orifice.Type: GrantFiled: April 15, 2008Date of Patent: March 27, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yasuhiro Nonobe
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Patent number: 8128383Abstract: A downhole sucker rod pump including a brush disposed between the downhole pump barrel and the well tubing to provide an effective seal which is not damaged during the insertion and/or withdrawal of the pump. The bush has a sufficient density and stiffness, such that it provides a sufficient interference fit between the pump barrel and the well tubing, that which retains its integrity with damage during the insertion and withdrawal process of a deep well.Type: GrantFiled: April 3, 2009Date of Patent: March 6, 2012Inventor: Kenny Pulliam
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Publication number: 20100254839Abstract: A downhole sucker rod pump including a brush disposed between the downhole pump barrel and the well tubing to provide an effective seal which is not damaged during the insertion and/or withdrawal of the pump. The bush has a sufficient density and stiffness, such that it provides a sufficient interference fit between the pump barrel and the well tubing, that which retains its integrity with damage during the insertion and withdrawal process of a deep well.Type: ApplicationFiled: April 3, 2009Publication date: October 7, 2010Inventor: Kenny Pulliam
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Patent number: 7604464Abstract: A reciprocating downhole pump has a gas separator located at its bottom end. The separator forms a chamber that is expanded and contracted when the pump is reciprocated. Expansion and contraction of the chamber occurs by either the plunger reciprocating in the chamber or a piston coupled to the plunger reciprocating in the chamber. The chamber has an orifice therein so that during reciprocation fluid flows in and out of the orifice. The orifice is sized so as to subject the fluid to a pressure drop, wherein gas in the fluid is separated from the liquid.Type: GrantFiled: July 22, 2005Date of Patent: October 20, 2009Assignee: Harbison-Fischer, Inc.Inventor: Benny J. Williams
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Patent number: 6986651Abstract: A pump priming apparatus including a housing through which fluid object material may be urged to flow, the housing including an intake portion and a pumping portion downstream from the intake portion. The apparatus further includes a piston assembly carried for reciprocation in the housing, the piston assembly and the housing being configured such that a partial vacuum is developed in the pumping portion of the housing as the piston assembly moves through the pumping portion of the housing toward the intake portion of the housing and such that the partial vacuum is substantially released upon the movement of the piston assembly into the intake portion of the housing, thereby causing the fluid object material in the intake portion of the housing to flow into the pumping portion of the housing.Type: GrantFiled: June 10, 2002Date of Patent: January 17, 2006Assignee: Balcrank Products, Inc.Inventors: Claude R. Whisenant, Rodney W. Burnette
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Patent number: 6755628Abstract: The invention is a component of a subsurface traveling barrel bottom anchor pump comprising a traveling valve assembly which includes: a cylindrical valve body having a lower section, the lower section having a central bore therethrough and external threads which interact with a threaded connection on a traveling barrel to removably attach the valve body to the traveling barrel; an upper section having a rod connection externally threaded for attachment to a pumping rod; a center section having a fishing neck portion and cage portion; a valve cage accommodated entirely within the internal portion of the cage portion; a valve ball positioned within the valve cage; a valve seat abutting the valve cage; and a ball and seat plug threaded into the lower section of the valve body for retaining the valve seat in the valve body.Type: GrantFiled: July 16, 2002Date of Patent: June 29, 2004Assignee: Howell's Well Service, Inc.Inventor: Kenneth Howell
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Publication number: 20040057854Abstract: A flange attaching section has a flange supporting section and a movable section, and the movable section can approach the flange supporting section and separate therefrom due to rotational moving. Even if a flange section of a barrel of a syringe has various thickness, the flange section is easily attached between the flange supporting section and the movable section, and although the attachment is easy, the flange section comes in pressure contact with the flange supporting section in the attached state. Even if, therefore, the flange section of the barrel of the syringe has various thickness, a syringe pump, in which moving of the barrel of the syringe during infusion is prevented securely and the infusion is executed at an accurate speed, is provided.Type: ApplicationFiled: July 30, 2003Publication date: March 25, 2004Applicant: Atom Medical CorporationInventors: Keisuke Wakabayashi, Tatsuhiko Seki, Kazuo Matsubara
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Patent number: 6352107Abstract: An elongated pump rod or sinkerbar for use in a pump rod string for a downhole reciprocating well pump is provided with an elongated sleeve of high density or ultra high density polyethylene over a major portion of the length of the sinkerbar to minimize wear on the sinkerbar and a well tubing string as a consequence of deflection of the sinkerbar into engagement width the tubing string and to minimize frictional drag on the pump actuating mechanism as a result of such engagement. The polyethylene sleeve may be assembled over the sinkerbar by apparatus including an elongated hydraulic actuator which may be configured to push a sinkerbar into the sleeve while the sleeve is held stationary within a support tube, or by holding the sinkerbar stationary on a support and pulling the sleeve over the sinkerbar and from a continuous length of tubing from which the sleeve is formed.Type: GrantFiled: February 11, 1999Date of Patent: March 5, 2002Assignee: Allen & Bennett, Inc.Inventors: Donald W. Bennett, Johnny B. Fayo, Scott W. Long
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Patent number: 5749709Abstract: A positive displacement pump comprising a housing which defines a pump inlet chamber in fluid communication with a pump inlet port and a pump outlet chamber in fluid communication with a pump outlet port. Disposed within the housing is a wobble plate which is adapted to pump fluid from the inlet chamber to the outlet chamber. Selectively insertable into and removable from within the housing is a modular pump component. The modular pump component is adapted to modify the operational characteristics of the pump when inserted into the pump housing.Type: GrantFiled: December 5, 1996Date of Patent: May 12, 1998Inventor: Benjamin R. Du
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Patent number: 5697768Abstract: A method and apparatus is disclosed which reduces or removes axial loads on the drive string of a rotary downhole pump, i.e. tensile loads due to the hydrostatic load of the pumped liquid on the pump rotor, and/or at least part of the weight of the drive string, or thrust loads caused during pressurized fluid injection operations by backpressure of injected fluid on the pump rotor. This substantially prevents drive string/production tubing friction, wear and/or buckle in downhole rotary pumping arrangements operated in straight or curved well bores. When used in connection with fluid production pumping arrangements, the apparatus reduces the friction between the drive string and the production tubing of a downhole rotary pump for the pumping of well fluids which pump has a pump rotor connected to the drive string and is operated in a well bore. When used in connection with fluid injection pumping arrangements, the apparatus prevents drive string buckle, especially in curved well bore situations.Type: GrantFiled: March 1, 1996Date of Patent: December 16, 1997Assignee: Kuda Industries, Inc.Inventor: Robert A. R. Mills
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Patent number: 5667369Abstract: This invention relates to a system for pumping an effluent that is produced by a geological formation, in which a rotary pump (3) is installed and driven in rotation by a continuous tube (12) that rises up to the surface. The tube makes it possible to inject a fluid, for example, a liquefier or a lubricant. This invention also relates to a pumping method in which rotor (24) of the pump is installed with a continuous tube (12), of the "coil tubing" type.Type: GrantFiled: November 27, 1995Date of Patent: September 16, 1997Assignee: Institut Francais Du PetroleInventor: Henri Cholet
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Patent number: 5654504Abstract: The present invention relates to a downhole hydraulic pump monitoring system and more specifically relates to a system which detects and/or anticipates pump malfunctions by processing readings taken by a pressure transmitter on the operating pressure and the stroke rate of the downhole hydraulic pump where decisions are reached regarding positive pump operation or inefficient pump malfunction based upon comparisons between the instantaneous pressure readings of the pressure transmitter and a time-averaged operating pressure of the power fluid taken over a multitude of pump strokes.Type: GrantFiled: October 13, 1995Date of Patent: August 5, 1997Inventors: Clark Allen Smith, deceased, by Rhoda Sue Smith, legal representative
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Patent number: 5613834Abstract: A positive displacement pump comprising a housing which defines a pump inlet chamber in fluid communication with a pump inlet port and a pump outlet chamber in fluid communication with a pump outlet port. Disposed within the housing is a wobble plate which is adapted to pump fluid from the inlet chamber to the outlet chamber. Selectively insertable into and removable from within the housing is a modular pump component. The modular pump component is adapted to modify the operational characteristics of the pump when inserted into the pump housing.Type: GrantFiled: May 15, 1996Date of Patent: March 25, 1997Inventor: Benjamin R. Du
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Patent number: 5540556Abstract: A positive displacement pump comprising a housing which defines a pump inlet chamber in fluid communication with a pump inlet port and a pump outlet chamber in fluid communication with a pump outlet port. Disposed within the housing is a wobble plate which is adapted to pump fluid from the inlet chamber to the outlet chamber. Selectively insertable into and removable from within the housing is a modular pump component. The modular pump component is adapted to modify the operational characteristics of the pump when inserted into the pump housing.Type: GrantFiled: June 1, 1994Date of Patent: July 30, 1996Inventor: Benjamin R. Du
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Patent number: 5482439Abstract: A power breaker for a compressor for automobiles including a base provided with a first conducting member and a second conducting member, a circular plate disposed within the base and having a center hole, a resilient disc arranged on the circular plate and including annular portion on which is fitted a diaphragm, a pin inserted through the center hole of the circular plate and having one end bearing against the diaphragm of the resilient disc and another end against the first conducting member, a control disc arranged on the resilient disc, a sealing ring disposed on the control disc, a plug formed with a cavity at one end and a curved recess at another end, a spring mounted in the cavity of the plug, a cover engaged with a top of the base and having a threaded hole, and an adjusting screw threaded engaged with the threaded hole of the cover.Type: GrantFiled: January 9, 1995Date of Patent: January 9, 1996Inventor: Chi-Wen Chen
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Patent number: 5464327Abstract: A water pressure control system in which the pressurizing pump is turned on only in response to low pressure but is turned off only in response to low water flow rates. Water flow is detected with a magnetic switch displaced by water movement. After the pump is turned on, it can not be turned off for ten seconds, to smooth operation. When the system is first activated, the pump is turned on for sixty seconds, without regard to the other control functions, to guarantee priming of the pump.Type: GrantFiled: December 1, 1993Date of Patent: November 7, 1995Assignee: ITT CorporationInventor: Robert P. Horwitz
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Patent number: 5464328Abstract: A regulating and controlling device for a fluid pressure booster installation includes a motor-driven pressure generating unit, a check valve, a relief valve and a pressure switch. The pressure switch has a first cylinder-piston arrangement for connecting the drive motor to a source of electrical energy. The first cylinder-piston arrangement includes a piston rod for contacting an intermediate member. The device has, as an improvement, a second cylinder-piston arrangement, a third cylinder-piston arrangement and a gear unit. The improvement prevents longer-lasting circulation delivery and, accordingly, an overheating of the working fluid. This also avoids any need for the pressure switch to be constructed so as to be adjustable in operation with respect to switch-off pressure or any need to be adjusted when changing the pressure value of the relief valve used for adjusting the pressure at the pressure outlet of the device.Type: GrantFiled: February 25, 1994Date of Patent: November 7, 1995Inventor: Helmut Stoeger
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Patent number: 5415528Abstract: A solution pumping system is disclosed which is embodied as a disposable pump cassette including a self-contained positive displacement pump, and an associated pump driver including a reciprocable pump piston for driving the pump of the cassette. This system is particularly suited for use in compounding in preparation of parenteral solutions for administration to patients. In order to promote high liquid output with minimum peak pumping pressures, the controls of the system operate to provide a "square" pumping pressure waveform, thus optimizing performance of the system. This is achieved by selectively varying the velocity of the pump piston during its operation.Type: GrantFiled: September 8, 1994Date of Patent: May 16, 1995Assignee: Abbott LaboratoriesInventors: John E. Ogden, Edward Tripp, William L. Rudzena
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Patent number: 5358385Abstract: A new structure for an efficient electric pump is described. The electric pump of this invention mainly comprises a cover plate, a top cover and a housing to make up the outside appearance. Its inside consists of a dual piston device, an eccentric transmission device for the pistons to stroke up and down, an electric motor, a switch, an adjustable pressure switch, a rotary dial for adjusting said pressure switch and the associated circuitry. The cover plate has two circular ball-shaped chambers for the pistons to create the sucking and the discharging. In between the two ball-shaped chamber are discharge and suction channels which are independent from each other but are joined together. Two ends of the channel are provided with clack valves for controlling the air flow to be drawing in on one side and discharge on the other side. The pressure switch is disposed beneath the discharge channel so that the pressure switch trips when the discharge pressure extends a preset limit.Type: GrantFiled: September 16, 1993Date of Patent: October 25, 1994Inventor: Nancy Wang
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Patent number: 5352096Abstract: This invention relates to an air compressor and in particular to one which includes a valve controlling device having a check valve and a cover. The check valve is fixedly mounted on said cover and is connected with a pipe. The check valve including a spring, a ball and a packing with the spring urging said ball against said packing thereby sealing said pipe. The cover is fixedly mounted on a cylinder so that air in said cylinder can flow out of said cover. A passage is formed between said cylinder and said cover and communicated with said check valve, a power breaker, an exhaust valve, and a pressure gauge. The power breaker is fixedly connected with said cover has via a connector and having an adjusting knob, a diaphragm, a main body, and two conducting members. The main body has an interior chamber in which is fitted a piston, the piston receiving a spring and having a protuberance on which is fitted a circular conductor.Type: GrantFiled: September 27, 1993Date of Patent: October 4, 1994Inventor: Chen Chi-Wen
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Patent number: 5193985Abstract: A new and improved control system for monitoring and controlling the operation of a downhole linear d.c. motor-pump assembly and a method of using it for producing a sufficient reciprocating pumping action to lift well fluid through the producing tubing of a well to the ground surface. The system includes a surface monitoring station that is in radio communication with a plurality of remote downhole motor-pump assemblies. Each motor-pump assembly has a surface motor controller, a downhole motor-pump cartiridge unit that is adapted to be received in a downhole cartridge sleeve assembly that maintains the cartridge unit in a stationary position for pumping purposes. The motor-pump cartridge unit may be raised or lowered by a control cable within the production tubing for helping to facilitate the repair or replacement of the motor-pump cartridge unit.Type: GrantFiled: November 9, 1990Date of Patent: March 16, 1993Assignee: UniFlo OilCorp, Ltd.Inventors: Nelson Escue, Vance E. Bolding, Howard C. Hornsby
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Patent number: 5131466Abstract: The present invention is drawn to an inlet valve assembly for a subsurface sucker rod operated reciprocating piston pump and, more particularly an inlet valve assembly which is locked in its closed position when the pump is in its unanchored, non-pumping position within the production tube of a deep well. When the subsurface piston pump is anchored within the production tube of the deep well of the inlet valve assembly is freely movable between open and close positions upon reciprocation of the piston.Type: GrantFiled: August 15, 1991Date of Patent: July 21, 1992Assignee: Intevep, S.A.Inventors: Jesus E. Chacin U., Amnon M. Vadasz F.
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Patent number: 5062480Abstract: The present invention is drawn to an inlet valve assembly for a subsurface sucker rod operated reciprocating piston pump and, more particularly an inlet valve assembly which is locked in its closed position when the pump is in its unanchored, non-pumping position within the production tube of a deep well. When the subsurface piston pump is anchored within the production tube of the deep well of the inlet valve assembly is freely movable between open and close positions upon reciprocation of the piston.Type: GrantFiled: October 11, 1990Date of Patent: November 5, 1991Assignee: Intevep, S.A.Inventors: Jesus E. Chacin U., Amnon M. Vadasz F.
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Patent number: 5049046Abstract: A new and improved control system for monitoring and controlling the operation of a downhole linear d.c. motor-pump assembly and a method of using it for producing a sufficient reciprocating pumping action to lift well fluid through the producing tubing of a well to the ground surface. The system includes a surface monitoring station that is in radio communication with a plurality of remote downhole motor-pump assemblies. Each motor-pump assembly has a surface motor controller, a downhole motor-pump cartridge unit that is adapted to be received in a downhole cartridge sleeve assembly that maintains the cartridge unit in a stationary position for pumping purposes. The motor-pump cartridge unit may be raised or lowered by a control cable within the production tubing for helping to facilitate the repair or replacement of the motor-pump cartridge unit.Type: GrantFiled: January 10, 1990Date of Patent: September 17, 1991Assignee: Escue Research and Development CompanyInventors: Nelson B. Escue, Vance E. Bolding, Howard C. Hornsby
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Patent number: 5048604Abstract: The invention is drawn to an improved inlet valve assembly for use in subsurface sucker rod operated reciprocating piston pumps. The inlet valve or standing valve is locked in the closed position when the pump is unanchored from the production tubing to prohibit passage of fluid into the pump barrel.Type: GrantFiled: November 7, 1990Date of Patent: September 17, 1991Assignee: Intevep, S.A.Inventors: Amnon M. Vadasz F., Jesus E. Chacin U.
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Patent number: 5015162Abstract: A pumping system for a heavy oil and sand slurry from a downhole location to the ground surface includes a conventional screw type pump having a rotor and stator. At the bottom of the stator at the inlet thereto is mounted an attachment including a sleeve having a number of slots in the side surface into which the material feeds. Inside the sleeve is mounted a shaft having an auger flight along part of its length. A coupling at the upper end of the shaft connects to the lower end of the rotor and can be engaged and released by rotation of the rotor. The auger flight assists in forming the materials including any excess sand into a suitable slurry for feeding to the inlet of the pump. The auger feeds the material more effectively to the inlet thus maximizing efficiency of the pump. The device thus avoids sand blockages which are common problems in pumping systems of this type.Type: GrantFiled: November 28, 1989Date of Patent: May 14, 1991Inventor: Terry D. Heppner
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Patent number: 4776401Abstract: Methods of and apparatus for plugging a well below a rod pump to permit bleeding off the pressure thereabove so that the pump can be removed from the well for replacement or repairs and reinstalled for further pumping operations, the pump being connected to a valve mechanism in the well in a manner which permits the valve to be closed as a result of lifting the pump, this connection being releasable to permit the pump to be pulled free of the valve and withdrawn from the well after the well pressure has been bled from above the closed valve. When the pump is installed again, the pump automatically reconnects to the valve. This invention is particularly useful in wells which are stimulated by the injection of steam.Type: GrantFiled: August 17, 1987Date of Patent: October 11, 1988Assignee: Otis Engineering CorporationInventor: William W. Dollison
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Patent number: 4750865Abstract: A method and apparatus for pumping high viscosity fluids such as viscous crude oils using a reciprocating pump powered by a reciprocating rod string where friction between the viscous fluid and the rod string and the resulting floatation effect are reduced greatly or substantially eliminated.Type: GrantFiled: September 22, 1986Date of Patent: June 14, 1988Assignee: Intevep, S.A.Inventors: Olegario Rivas, Alejandro Newski
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Patent number: 4440231Abstract: Apparatus and methods are provided for installing and removing a downhole rod pump form a well while preventing flow of fluids from the well through a production tubing string.Type: GrantFiled: June 4, 1981Date of Patent: April 3, 1984Assignee: Conoco Inc.Inventor: Albert E. Martin
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Patent number: 4280793Abstract: A bore hole pump assembly and a method of forming the bore hole assembly, wherein a pump casing member has connected thereto a plurality of interconnectable bore hole lining pipes, with the lowermost of said pipes being connectable directly to one axial end of the casing member, a turbine pump having a plurality of axially spaced turbine impellers with a plurality of bowl elements interposed between the impellers each provided with fixed vanes thereon, and a drive shaft at one axial end of the pump and a tubular housing at the other axial end of the pump, the housing being engageable in the pump casing member and being removable by movement towards said one axial end, the lining pipes acting as a discharge pipe of the pump.Type: GrantFiled: February 23, 1979Date of Patent: July 28, 1981Assignee: Mono Pumps LimitedInventor: Hugh D. Nelson