US2946578A - Excavator apparatus having stepper type advancing means - Google Patents

Excavator apparatus having stepper type advancing means Download PDF

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Publication number
US2946578A
US2946578A US642135A US64213557A US2946578A US 2946578 A US2946578 A US 2946578A US 642135 A US642135 A US 642135A US 64213557 A US64213557 A US 64213557A US 2946578 A US2946578 A US 2946578A
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Prior art keywords
advancing means
july
type advancing
stepper type
smaele
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Expired - Lifetime
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US642135A
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Smaele Albert De
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/18Anchoring or feeding in the borehole
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1093Devices for supporting, advancing or orientating the machine or the tool-carrier

Description

July 26, 1960 A. DE sMAl-:LE
ExcAvAToR APPARATUS HAVING STEPPER TYPE ADvANcING MEANS Filed Feb. 25, 1957 20 Sheets-Sheet 1 Waag/6, SP s A. DE sMAELE 2,946,578 ExcAvAToP APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet 2 July 26, 1960 Filed Feb. 25, 1957 alberte Jmcule,
July 26,'1960 A. DE sMAELE 2,946,578
ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS Filed Feb. 25, 1957 2O Sheets-Sheet 3 185 FIG 2 0a 1" 108 II a Ul 405 W' Il 43e JNVENTOR. albert enwoele.
July 26, 1960 A. `DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 4 Filed Feb. 25, 1957 'I l so was Boa
INVENToR. Zlbert e/Jmaele,
BY W 9s p July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 5 Filed Feb. 25, 1957 INVENTOR. Zwart 'maee,
July 26, 1960 f A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 6 Filed Feb. 25, 1957 INVENToR. alberte 'nzaele,
/4TTYJ July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet 7 Filed Feb. 25, 1957 mVENToR. dlbertemaele,
July 26, 1960 A. DE sMAELE 2,946,578
ExcAvAToR APPARATUS HAVING STEPPER .TYPE ADvANcING MEANS Filed Feb. 25, 1957 2o sneetssneet e ihnen/iol: albert Be/J'mal,
July 26, 1960 A. DE sMAELE 2,946,578
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Kaw M July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet 10 Filed Feb. 25, 1957 L ,hz/anton albert emale.
July 26, 1960 A. DE sMAELE ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 11 Filed Feb. 25, 1957 mmm ratori July 26, 1960 A. DE sMAELE 2,946,578
EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS Filed Feb. 25, 1957 20 Sheets-Sheet l? FIG. I6
2.04 (307)/5' (soakzoa CD/WB 47 A4a (304.) 415 447 /46 4 41 E 45j 4 g INVENTOR. albe] 'e Lglllalf mwa/224% July 26, 1960 1 A. DE sMAr-:LE
ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet 13 m 3P Er ,i1/venian CLLber De Smale,
July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-#Sheet 14 Filed Feb, 25, 1957 1N V EN TOR. dlberefmaele,
BY W @vim 20 Sheets-Sheet 15 @Dro Q35 m A. DE SMAELE TYPE ADVANCING MEANS EXCAVATOR APPARATUS HAVING STEPPER July 26, 1960 Filed Feb. 25, 1957 werool: dLberelLae/, r mi 9v @k y mi July 26, 1960 A. DE SMAELE 2,946,578
EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS July 26, 1960 l A. DE sMAELE ExcAvAToRl APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 17 Filed Feb. 25, 1957 own; *wo* A 33,# lili-- III-- -5---- 33 M o 53 33k imo* die* dm3* 2.8) l 1 :3\ 3a. s3 n 1 z Si 53 m3 :S 8m
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July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet 18 @o3 B3 m3* $2. 28. $3 :be 22 22 ,uu/'entor ZLberteJmaP/Ze,
NN di July 26, 1960 A. DE sMAELE EXCAVATGR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 19 Filed Feb. 25, 1957 July 26, 1960 A. DE sMAELE ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2O Sheets-Sheet 20 Filed Feb. 25, 1957 falen/ton Cdberbe 'naele,
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US642135A 1952-08-04 1957-02-25 Excavator apparatus having stepper type advancing means Expired - Lifetime US2946578A (en)

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BE2946578X 1952-08-04

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Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105561A (en) * 1960-09-13 1963-10-01 Jersey Prod Res Co Hydraulic actuated drill collar
US3180436A (en) * 1961-05-01 1965-04-27 Jersey Prod Res Co Borehole drilling system
US3185225A (en) * 1962-05-04 1965-05-25 Wolstan C Ginies Entpr Proprie Feeding apparatus for down hole drilling device
US3190376A (en) * 1962-01-30 1965-06-22 Eugene A Christensen Boring head
US3205014A (en) * 1960-12-27 1965-09-07 Terra Form Footing Co Rotary tunneling machine having off-set head
US3232670A (en) * 1964-08-07 1966-02-01 Robbins & Assoc James S Tunnel-boring rotary head with adjustably mounted gauge cutters
US3325218A (en) * 1966-11-30 1967-06-13 Alkirk Inc Earth boring machine
US3797589A (en) * 1973-04-16 1974-03-19 Smith International Self guiding force applicator
US3799277A (en) * 1973-04-16 1974-03-26 Smith International Force applicator
US3827512A (en) * 1973-01-22 1974-08-06 Continental Oil Co Anchoring and pressuring apparatus for a drill
US3881776A (en) * 1973-11-23 1975-05-06 Us Navy Vermiculating polytoroidal thruster
US3935910A (en) * 1973-06-25 1976-02-03 Compagnie Francaise Des Petroles Method and apparatus for moulding protective tubing simultaneously with bore hole drilling
US3963080A (en) * 1975-01-29 1976-06-15 Dresser Industries, Inc. Tunneling machine for boring a side drift
US3997008A (en) * 1974-09-13 1976-12-14 Smith International, Inc. Drill director
FR2370163A1 (en) * 1976-11-05 1978-06-02 Johansson Sven Halvor DEVICE FOR IMMOBILIZING AND MOVING A LOAD IN A DRILL HOLE BY PRESSING ON THE LATERAL SURFACE OF THE LATTER
US4095655A (en) * 1975-10-14 1978-06-20 Still William L Earth penetration
US4120368A (en) * 1976-11-05 1978-10-17 Sven Halvor Johansson Supplying motive fluid to below ground tool drive from a pressurized bore hole
DE2809951A1 (en) * 1978-03-08 1979-09-13 Demag Ag Tunnelling machine rotary cutting head - has radial segments bolted together and to drive member, using interlocking flanges
FR2456830A1 (en) * 1979-05-18 1980-12-12 Salzgitter Maschinen Ag TERRESTRIAL DRILLING DEVICE WITH SUPPORT IN THE DRILLING HOLE
FR2456832A1 (en) * 1979-05-18 1980-12-12 Salzgitter Maschinen Ag CENTERING AND GUIDING DEVICE FOR ROD TRAINING OF LAND DRILLING EQUIPMENT
FR2484599A1 (en) * 1980-06-13 1981-12-18 Coopetanche Sa Milling machine for removing asperities in pipe bore - uses jack to move motor and cutting head w.r.t. tubular chassis secured by inflated girdles
US4432667A (en) * 1979-06-16 1984-02-21 Marcon International Limited Insulation of tunnel linings
US4438820A (en) * 1981-11-16 1984-03-27 Gibson Paul N Grade monitoring and steering apparatus
EP0110182A2 (en) * 1982-11-26 1984-06-13 Advanced Drilling Corporation Down-hole drilling apparatus
FR2557055A1 (en) * 1983-12-27 1985-06-28 Inspectronic Appliance for transport and positioning in a conduit
US4686653A (en) * 1983-12-09 1987-08-11 Societe Nationale Elf Aquitaine (Production) Method and device for making geophysical measurements within a wellbore
US4700788A (en) * 1985-05-06 1987-10-20 Shell Oil Company Directional drilling pipelay
EP0767289A1 (en) * 1995-10-02 1997-04-09 Atlas Copco Robbins Inc. Inflatable gripper assembly for rock boring machine
US6003606A (en) * 1995-08-22 1999-12-21 Western Well Tool, Inc. Puller-thruster downhole tool
US6230813B1 (en) 1995-08-22 2001-05-15 Western Well Tool, Inc. Method of moving a puller-thruster downhole tool
US6347674B1 (en) 1998-12-18 2002-02-19 Western Well Tool, Inc. Electrically sequenced tractor
US6431291B1 (en) 2001-06-14 2002-08-13 Western Well Tool, Inc. Packerfoot with bladder assembly having reduced likelihood of bladder delamination
US6464003B2 (en) 2000-05-18 2002-10-15 Western Well Tool, Inc. Gripper assembly for downhole tractors
US20030151298A1 (en) * 2001-11-20 2003-08-14 Compagnie Du Sol Equipment for drilling vertical boreholes
US6679341B2 (en) 2000-12-01 2004-01-20 Western Well Tool, Inc. Tractor with improved valve system
US6715559B2 (en) 2001-12-03 2004-04-06 Western Well Tool, Inc. Gripper assembly for downhole tractors
US20040168828A1 (en) * 2003-02-10 2004-09-02 Mock Philip W. Tractor with improved valve system
US20040226747A1 (en) * 2003-05-15 2004-11-18 Stegmaier Shawn C. Self-penetrating soil exploration device and associated methods
US20050247488A1 (en) * 2004-03-17 2005-11-10 Mock Philip W Roller link toggle gripper and downhole tractor
US7055625B1 (en) * 2003-01-27 2006-06-06 Honeybee Robotics, Ltd. Self-propelled instrumented deep drilling system
US20080053663A1 (en) * 2006-08-24 2008-03-06 Western Well Tool, Inc. Downhole tool with turbine-powered motor
US20080217024A1 (en) * 2006-08-24 2008-09-11 Western Well Tool, Inc. Downhole tool with closed loop power systems
US7624808B2 (en) 2006-03-13 2009-12-01 Western Well Tool, Inc. Expandable ramp gripper
US7748476B2 (en) 2006-11-14 2010-07-06 Wwt International, Inc. Variable linkage assisted gripper
US20100307832A1 (en) * 2000-12-01 2010-12-09 Western Well Tool, Inc. Tractor with improved valve system
US20110073300A1 (en) * 2009-09-29 2011-03-31 Mock Philip W Methods and apparatuses for inhibiting rotational misalignment of assemblies in expandable well tools
WO2011058307A2 (en) 2009-11-10 2011-05-19 National Oilwell Varco L.P. Downhole tractor
US9447648B2 (en) 2011-10-28 2016-09-20 Wwt North America Holdings, Inc High expansion or dual link gripper
US9488020B2 (en) 2014-01-27 2016-11-08 Wwt North America Holdings, Inc. Eccentric linkage gripper
EP3186465A4 (en) * 2014-08-26 2018-05-30 Baker Hughes Incorporated Downhole motor for extended reach applications
US20200338943A1 (en) * 2019-04-25 2020-10-29 United States Of America As Represented By The Secretary Of The Navy Unmanned Undersand Vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US556718A (en) * 1896-03-17 Electrical apparatus for drilling wells
US1403530A (en) * 1920-06-28 1922-01-17 Whitaker Douglas Tunneling machine
US1462997A (en) * 1919-07-21 1923-07-24 Tunnel & Sewer Machine Enginee Tunneling machine
US1511957A (en) * 1921-11-14 1924-10-14 Theophil J Freda Horizontal earth-boring machine
US2699328A (en) * 1949-04-02 1955-01-11 Union Carbide & Carbon Corp Mining process and system by remote control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US556718A (en) * 1896-03-17 Electrical apparatus for drilling wells
US1462997A (en) * 1919-07-21 1923-07-24 Tunnel & Sewer Machine Enginee Tunneling machine
US1403530A (en) * 1920-06-28 1922-01-17 Whitaker Douglas Tunneling machine
US1511957A (en) * 1921-11-14 1924-10-14 Theophil J Freda Horizontal earth-boring machine
US2699328A (en) * 1949-04-02 1955-01-11 Union Carbide & Carbon Corp Mining process and system by remote control

Cited By (117)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105561A (en) * 1960-09-13 1963-10-01 Jersey Prod Res Co Hydraulic actuated drill collar
US3205014A (en) * 1960-12-27 1965-09-07 Terra Form Footing Co Rotary tunneling machine having off-set head
US3180436A (en) * 1961-05-01 1965-04-27 Jersey Prod Res Co Borehole drilling system
US3190376A (en) * 1962-01-30 1965-06-22 Eugene A Christensen Boring head
US3185225A (en) * 1962-05-04 1965-05-25 Wolstan C Ginies Entpr Proprie Feeding apparatus for down hole drilling device
US3232670A (en) * 1964-08-07 1966-02-01 Robbins & Assoc James S Tunnel-boring rotary head with adjustably mounted gauge cutters
US3325218A (en) * 1966-11-30 1967-06-13 Alkirk Inc Earth boring machine
US3827512A (en) * 1973-01-22 1974-08-06 Continental Oil Co Anchoring and pressuring apparatus for a drill
US3797589A (en) * 1973-04-16 1974-03-19 Smith International Self guiding force applicator
US3799277A (en) * 1973-04-16 1974-03-26 Smith International Force applicator
US3935910A (en) * 1973-06-25 1976-02-03 Compagnie Francaise Des Petroles Method and apparatus for moulding protective tubing simultaneously with bore hole drilling
US3881776A (en) * 1973-11-23 1975-05-06 Us Navy Vermiculating polytoroidal thruster
US3997008A (en) * 1974-09-13 1976-12-14 Smith International, Inc. Drill director
US3963080A (en) * 1975-01-29 1976-06-15 Dresser Industries, Inc. Tunneling machine for boring a side drift
US4095655A (en) * 1975-10-14 1978-06-20 Still William L Earth penetration
FR2370163A1 (en) * 1976-11-05 1978-06-02 Johansson Sven Halvor DEVICE FOR IMMOBILIZING AND MOVING A LOAD IN A DRILL HOLE BY PRESSING ON THE LATERAL SURFACE OF THE LATTER
US4120368A (en) * 1976-11-05 1978-10-17 Sven Halvor Johansson Supplying motive fluid to below ground tool drive from a pressurized bore hole
DE2809951A1 (en) * 1978-03-08 1979-09-13 Demag Ag Tunnelling machine rotary cutting head - has radial segments bolted together and to drive member, using interlocking flanges
FR2456830A1 (en) * 1979-05-18 1980-12-12 Salzgitter Maschinen Ag TERRESTRIAL DRILLING DEVICE WITH SUPPORT IN THE DRILLING HOLE
FR2456832A1 (en) * 1979-05-18 1980-12-12 Salzgitter Maschinen Ag CENTERING AND GUIDING DEVICE FOR ROD TRAINING OF LAND DRILLING EQUIPMENT
US4432667A (en) * 1979-06-16 1984-02-21 Marcon International Limited Insulation of tunnel linings
FR2484599A1 (en) * 1980-06-13 1981-12-18 Coopetanche Sa Milling machine for removing asperities in pipe bore - uses jack to move motor and cutting head w.r.t. tubular chassis secured by inflated girdles
US4438820A (en) * 1981-11-16 1984-03-27 Gibson Paul N Grade monitoring and steering apparatus
EP0110182A2 (en) * 1982-11-26 1984-06-13 Advanced Drilling Corporation Down-hole drilling apparatus
EP0110182A3 (en) * 1982-11-26 1985-03-20 Advanced Drilling Corporation Down-hole drilling apparatus
US4686653A (en) * 1983-12-09 1987-08-11 Societe Nationale Elf Aquitaine (Production) Method and device for making geophysical measurements within a wellbore
FR2557055A1 (en) * 1983-12-27 1985-06-28 Inspectronic Appliance for transport and positioning in a conduit
US4700788A (en) * 1985-05-06 1987-10-20 Shell Oil Company Directional drilling pipelay
US6003606A (en) * 1995-08-22 1999-12-21 Western Well Tool, Inc. Puller-thruster downhole tool
US6230813B1 (en) 1995-08-22 2001-05-15 Western Well Tool, Inc. Method of moving a puller-thruster downhole tool
US6286592B1 (en) 1995-08-22 2001-09-11 Western Well Tool, Inc. Puller-thruster downhole tool
US7273109B2 (en) 1995-08-22 2007-09-25 Western Well Tool Puller-thruster downhole tool
US20070000697A1 (en) * 1995-08-22 2007-01-04 Moore Norman B Puller-thruster downhole tool
US7156181B2 (en) * 1995-08-22 2007-01-02 Western Well Tool, Inc. Puller-thruster downhole tool
US6758279B2 (en) 1995-08-22 2004-07-06 Western Well Tool, Inc. Puller-thruster downhole tool
US6601652B1 (en) 1995-08-22 2003-08-05 Western Well Tool, Inc. Puller-thruster downhole tool
US7059417B2 (en) 1995-08-22 2006-06-13 Western Well Tool, Inc. Puller-thruster downhole tool
US20060108151A1 (en) * 1995-08-22 2006-05-25 Moore Norman B Puller-thruster downhole tool
US20040182580A1 (en) * 1995-08-22 2004-09-23 Moore Norman Bruce Puller-thruster downhole tool
US5649745A (en) * 1995-10-02 1997-07-22 Atlas Copco Robbins Inc. Inflatable gripper assembly for rock boring machine
EP0767289A1 (en) * 1995-10-02 1997-04-09 Atlas Copco Robbins Inc. Inflatable gripper assembly for rock boring machine
US7080701B2 (en) 1998-12-18 2006-07-25 Western Well Tool, Inc. Electrically sequenced tractor
US20050252686A1 (en) * 1998-12-18 2005-11-17 Duane Bloom Electrically sequenced tractor
US6745854B2 (en) 1998-12-18 2004-06-08 Western Well Tool, Inc. Electrically sequenced tractor
US6347674B1 (en) 1998-12-18 2002-02-19 Western Well Tool, Inc. Electrically sequenced tractor
US7185716B2 (en) 1998-12-18 2007-03-06 Western Well Tool, Inc. Electrically sequenced tractor
US7174974B2 (en) 1998-12-18 2007-02-13 Western Well Tool, Inc. Electrically sequenced tractor
US20060196694A1 (en) * 1998-12-18 2006-09-07 Duane Bloom Electrically sequenced tractor
US20040245018A1 (en) * 1998-12-18 2004-12-09 Duane Bloom Electrically sequenced tractor
US20060196696A1 (en) * 1998-12-18 2006-09-07 Duane Bloom Electrically sequenced tractor
US6938708B2 (en) 1998-12-18 2005-09-06 Western Well Tool, Inc. Electrically sequenced tractor
US6478097B2 (en) 1998-12-18 2002-11-12 Western Well Tool, Inc. Electrically sequenced tractor
US7191829B2 (en) * 2000-02-16 2007-03-20 Western Well Tool, Inc. Gripper assembly for downhole tools
US7275593B2 (en) 2000-02-16 2007-10-02 Western Well Tool, Inc. Gripper assembly for downhole tools
US20060201716A1 (en) * 2000-02-16 2006-09-14 Duane Bloom Gripper assembly for downhole tools
US7048047B2 (en) 2000-02-16 2006-05-23 Western Well Tool, Inc. Gripper assembly for downhole tools
US6640894B2 (en) 2000-02-16 2003-11-04 Western Well Tool, Inc. Gripper assembly for downhole tools
US20050082055A1 (en) * 2000-02-16 2005-04-21 Duane Bloom Gripper assembly for downhole tools
US20070017670A1 (en) * 2000-02-16 2007-01-25 Duane Bloom Gripper assembly for downhole tools
US20080078559A1 (en) * 2000-05-18 2008-04-03 Western Well Tool, Inc. Griper assembly for downhole tools
US8555963B2 (en) 2000-05-18 2013-10-15 Wwt International, Inc. Gripper assembly for downhole tools
US7604060B2 (en) 2000-05-18 2009-10-20 Western Well Tool, Inc. Gripper assembly for downhole tools
US9228403B1 (en) 2000-05-18 2016-01-05 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US8944161B2 (en) 2000-05-18 2015-02-03 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US8069917B2 (en) 2000-05-18 2011-12-06 Wwt International, Inc. Gripper assembly for downhole tools
US6464003B2 (en) 2000-05-18 2002-10-15 Western Well Tool, Inc. Gripper assembly for downhole tractors
US9988868B2 (en) 2000-05-18 2018-06-05 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US20070151764A1 (en) * 2000-12-01 2007-07-05 Duane Bloom Tractor with improved valve system
US7080700B2 (en) 2000-12-01 2006-07-25 Western Well Tool, Inc. Tractor with improved valve system
US6679341B2 (en) 2000-12-01 2004-01-20 Western Well Tool, Inc. Tractor with improved valve system
US20070000693A1 (en) * 2000-12-01 2007-01-04 Duane Bloom Tractor with improved valve system
US7188681B2 (en) 2000-12-01 2007-03-13 Western Well Tool, Inc. Tractor with improved valve system
US20080217059A1 (en) * 2000-12-01 2008-09-11 Duane Bloom Tractor with improved valve system
US8245796B2 (en) 2000-12-01 2012-08-21 Wwt International, Inc. Tractor with improved valve system
US7607495B2 (en) 2000-12-01 2009-10-27 Western Well Tool, Inc. Tractor with improved valve system
US20040144548A1 (en) * 2000-12-01 2004-07-29 Duane Bloom Tractor with improved valve system
US7353886B2 (en) 2000-12-01 2008-04-08 Western Well Tool, Inc. Tractor with improved valve system
US20100307832A1 (en) * 2000-12-01 2010-12-09 Western Well Tool, Inc. Tractor with improved valve system
US6431291B1 (en) 2001-06-14 2002-08-13 Western Well Tool, Inc. Packerfoot with bladder assembly having reduced likelihood of bladder delamination
US20030151298A1 (en) * 2001-11-20 2003-08-14 Compagnie Du Sol Equipment for drilling vertical boreholes
US6955232B2 (en) * 2001-11-20 2005-10-18 Compagnie Du Sol Equipment for drilling vertical boreholes
US6715559B2 (en) 2001-12-03 2004-04-06 Western Well Tool, Inc. Gripper assembly for downhole tractors
US7055625B1 (en) * 2003-01-27 2006-06-06 Honeybee Robotics, Ltd. Self-propelled instrumented deep drilling system
US7343982B2 (en) 2003-02-10 2008-03-18 Western Well Tool, Inc. Tractor with improved valve system
US20040168828A1 (en) * 2003-02-10 2004-09-02 Mock Philip W. Tractor with improved valve system
US7121364B2 (en) 2003-02-10 2006-10-17 Western Well Tool, Inc. Tractor with improved valve system
US7493967B2 (en) 2003-02-10 2009-02-24 Western Well Tool, Inc. Tractor with improved valve system
US20070107943A1 (en) * 2003-02-10 2007-05-17 Mock Philip W Tractor with improved valve system
US20080223616A1 (en) * 2003-02-10 2008-09-18 Western Well Tool, Inc. Tractor with improved valve system
US6959772B2 (en) 2003-05-15 2005-11-01 General Dynamics Advanced Information Systems, Inc. Self-penetrating soil exploration device and associated methods
US20040226747A1 (en) * 2003-05-15 2004-11-18 Stegmaier Shawn C. Self-penetrating soil exploration device and associated methods
US7392859B2 (en) 2004-03-17 2008-07-01 Western Well Tool, Inc. Roller link toggle gripper and downhole tractor
US20100163251A1 (en) * 2004-03-17 2010-07-01 Mock Philip W Roller link toggle gripper and downhole tractor
US7607497B2 (en) 2004-03-17 2009-10-27 Western Well Tool, Inc. Roller link toggle gripper and downhole tractor
US20050247488A1 (en) * 2004-03-17 2005-11-10 Mock Philip W Roller link toggle gripper and downhole tractor
US7954563B2 (en) 2004-03-17 2011-06-07 Wwt International, Inc. Roller link toggle gripper and downhole tractor
US20090008152A1 (en) * 2004-03-17 2009-01-08 Mock Philip W Roller link toggle gripper and downhole tractor
US20100018720A1 (en) * 2006-03-13 2010-01-28 Western Well Tool, Inc. Expandable ramp gripper
US7624808B2 (en) 2006-03-13 2009-12-01 Western Well Tool, Inc. Expandable ramp gripper
US7954562B2 (en) 2006-03-13 2011-06-07 Wwt International, Inc. Expandable ramp gripper
US8302679B2 (en) 2006-03-13 2012-11-06 Wwt International, Inc. Expandable ramp gripper
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