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| Number | Title | Issue Date |
| 7559377 | Construction apparatus The invention relates to a construction apparatus comprising a mast, a slide guided in a longitudinally displaceable manner on a front side of the mast, at least one drive chain for the slide arranged longitudinally to the mast and at least one drive pinion supporte... | 07/14/2009 |
| 7410008 | Ground rod driver A ground rod driver that uses an industry standard connecting plate to physically attach the driver to Skid Steer type equipment. The driver has a hydraulic, impact driving hammer connected to an alignment beam that enables vertical movement of the hammer. Operation... | 08/12/2008 |
| 7387173 | Pile driver A pile driver including an apparatus for allowing relative movement between a hammer and a boom of an excavator. The apparatus includes a mounting plate mounted to the boom that interfits with and is slidable with respect to a frame rail mounted to the hammer. In op... | 06/17/2008 |
| 7380611 | Rock drilling machine and rock drilling system A rock drilling machine (1) having, on a machine housing (2), a first attachment element on a first attachment side (13) for its fastening to a slide member which is movable back and forth along a feed beam, the attachment element having a conta... | 06/03/2008 |
| 7371009 | Split gib mounting arrangement for drilling components Apparatus and methods are provided for assisting in mounting a wear pad to a drilling machine. A gib is split longitudinally into at least first and second portions creating a channel for receiving the wear pad. A portion of the wear pad may include a tenon, such as... | 05/13/2008 |
| 7331405 | Powered hammer device The present invention relates to a powered hammer device including: a hammer with at least a first and a second projection; at least one translation dog adapted to engage with said projections, and a drive mechanism capable of moving the translation dog substantiall... | 02/19/2008 |
| 7249629 | Multi-function well servicing vehicle A mobile vehicle for inserting jointed pipe into a well, having a derrick and hydraulic rams to raise and lower same, adapted to conduct additional operations which will allow a well to be completed by this vehicle alone. Three winches are provided, a first to raise... | 07/31/2007 |
| 7198115 | Lead alignment attachment A construction equipment attachment for driving an object, such as a timber piles, steel piles, pipe piles, steel sheet piles, h-beam and the like, is provided. In one embodiment, the attachment includes a hammer slidably coupled to a lead, a lead mounting assembly ... | 04/03/2007 |
| 7052216 | Work saver for an electric drill A T-bracket having a pair of spaced apart arms support a housing containing a sprocket wheel and a shaft to turn the sprocket. A handle attached to one end of the shaft turns the sprocket to tighten a chain turning on the sprocket teeth. A flexible wire rod is welde... | 05/30/2006 |
| 7011166 | System and method for assisting with automatically connecting pipe joints with a horizontal boring machine An automatic pipe handling system for automatically transporting pipe sections to and from a horizontal boring machine. The system comprises a pipe handling assembly, a pipe lubrication assembly, a makeup/breakout assembly, and an automatic control system. The pipe ... | 03/14/2006 |
| 6976298 | Methods and apparatus for connecting tubulars using a top drive An apparatus for facilitating the connection of tubulars using a top drive, the apparatus comprising a stator attachable to said top drive, and a supporting member for supporting a tool, wherein means are provided to allow substantially horizontal movement of said s... | 12/20/2005 |
| 6926259 | Hoist system The invention is a hoist system for use on a drilling rig made of a tubular mast with a front, back, and top side, a splittable block connected to the mast top side, a trolley with a trolley top and bottom side, wherein the trolley's top side is connected to the spl... | 08/09/2005 |
| 6725946 | Excavation apparatus An excavation apparatus especially useful when mounted on backhoes and other lighter vehicles used in the construction industry. The excavation apparatus does not require a winch for letting out and retracting its cable nor a reel for storing retracted cable which r... | 04/27/2004 |
| 6705407 | Rock drilling and mounting frame A rock drill includes a mounting frame to which a hammering apparatus and a rotating apparatus is arranged. The mounting frame is made maneuverable with respect to a feeding beam by means of slide blocks fastened to it, whereby a separate carriage is not needed betw... | 03/16/2004 |
| 6481930 | Apparatus and method for inserting and removing a flexible first material into a second material An apparatus for inserting and removing a flexible first material into a second material (20) includes a moveable carriage (22). An adjustable clamp (24) is connected to the moveable carriage (22), adjustable between an open position and a clamped positio... | 11/19/2002 |
| 6315059 | Portable water well drill The present invention is a portable drilling rig having a support tower. A drilling engine, mounted within a cradle, and a lift winch are attached to the support tower. A stabilizer bar is attached to the lower end of the support tower to prevent swaying ... | 11/13/2001 |
| 6305480 | Post driving and earth boring machine A machine for driving posts, drills, large spikes, and the like work pieces into the ground, pavements, or wall structures. The machine comprises an elongated tower, a carriage, a hammer, a combination of an elongated two-way cylinder and a pulley system,... | 10/23/2001 |
| 6293359 | Pressure control of a drilling apparatus Apparatus for blast hole drilling includes a hammer and drill bit driven by a hydraulic drive motor outside the hole through a drill string extending along the drilled hole to the drill bit. The drive motor is carried on a mast with a telescopic hydraulic... | 09/25/2001 |
| 6257349 | Top head drive and mast assembly for drill rigs A top head rotary drive and mast assembly for drilling which is adapted to be readily mounted on a derrick of a conventional truck, crawler or other vehicle so as to be movable from a stored position adjacent the derrick to a deployed position spaced from... | 07/10/2001 |
| 6234719 | Mobile combined drilling and piling machine and method for tubular foundation with machine A method in or relating to piling of e.g. tubular bases which are placed and, possibly, casted within a hole drilled out in earth mass in ground or the like is described. One uses a generally known drilling rig, in which a bit is assigned a drilling hamme... | 05/22/2001 |
| 6227306 | Pipe gripping device A pipe gripping device is taught which is useful for moving pipe into and/or out of a well. The pipe gripping device includes a first set of slips for holding a pipe in a pipe light condition and a second set of slips for holding a pipe in a pipe heavy co... | 05/08/2001 |
| 6216797 | Thrust system for a horizontal directional drill A thrust system for a horizontal directional drill is provided. The thrust system includes a drill boom having a drive sprocket positioned at the first end thereof and a driven sprocket positioned at the second end thereof. A carriage for supporting the h... | 04/17/2001 |
| 6105684 | Roof bolter or a roof bolt installation apparatus The present invention relates to improvements in the operation and construction of roof bolters or roof bolt installation apparatus. The improvements comprise a roof bolter constructed so that the critical moving parts of its timber jack, feed frame, feed... | 08/22/2000 |
| 6105683 | Post picker The most dangerous task in mechanically driving a post into the ground is initially holding the post in an upright position while it is hammered to start it into the ground. When used with mobile equipment having an hydraulically driven post pounder the p... | 08/22/2000 |
| 5988298 | Drill rod position stabilizing device A drilling device has a drilling mast and a movable drifter thereon with a drill rod stabilizing device for stabilizing drill rods in position during drilling. The stabilizer travels along the mast along with the drifter, and includes a locking arm that a... | 11/23/1999 |
| 5778988 | Drilling apparatus Drilling apparatus which comprises support structure mounted guide tracks which extend in a drilling direction. A rotating and pushing unit is mounted on said guide tracks for movement in the drilling direction. The apparatus is provided with a series of ... | 07/14/1998 |
| 5762148 | Boring tool A boring tool with two driving heads which are used to sink a casing string and a borer string includes a controllable coupling mechanism fitted between the two driving heads. A mechanism is also provided for the lower driving head, such that the driving ... | 06/09/1998 |
| 5746277 | Drilling apparatus Augering device is disclosed which is useful for drilling holes in the ground at various angles under relatively low overhead or ceiling conditions. The device is suitable for mounting on a wide variety of vehicles ranging from the bed of small pickup tru... | 05/05/1998 |
| 5667021 | Apparatus for driving grade stakes A grade stake driver includes a frame for supporting a hammer and a grade stake under the hammer. A shuttle secured to the hammer movably mounts onto the frame to connect the hammer to the frame. A hoist secured to the shuttle mounts onto the frame to per... | 09/16/1997 |
| 5630477 | Downcrowdable telescopic augering apparatus A downcrowdable telescopic augering apparatus including a vehicle having a boom which carries a cradle in which a kelly tube is slidably mounted and on which a kelly winch and a service winch are mounted. A winch management system oversees the operation o... | 05/20/1997 |
| 5601148 | Arrangement for measuring the position of a feed beam in a rock drilling apparatus and/or measuring the position of a rock drill An arrangement for measuring the position of a feed beam (1) in a rock drilling apparatus relative to a cradle (4) therein, or measuring the position of a rock drill (3) relative to the feed beam (1). In the arrangement an inelastic, flexible cogged belt ... | 02/11/1997 |
| 5584603 | Drainage wick inserting device A device for inserting a substantially vertical drainage wick, comprising a movable frame; an inserting lance which is provided with a passage for receiving the drainage wick and corresponding with the longitudinal axis of the inserting lance; a standing ... | 12/17/1996 |
| 5524716 | Bi-directionally extensible tool driving apparatus A tool driving apparatus having an elongated mast which is collapsibly mounted on a transportable supporting base therefor, wherein the mast has a movable carriage slidably mounted thereon for movement along the length thereof. A first piston is mounted t... | 06/11/1996 |
| 5433279 | Portable top drive assembly The assembly is designed to convert a conventional land rig to "top drive". It comprises a torque track that is shipped in sections and is assembled to form a rigid track extending vertically in the derrick. The track is rigidly attached to the derrick on... | 07/18/1995 |
| 5390747 | Well rig lift system and a hydraulic energy-storing well rig lift system A well rig lifting system and a hydraulic energy-storing well rig lifting system, wherein a high pressure energy-storing cylinder and a composite cylinder or cylinder group are used to carry out the lifting and lowering operations. During the lifting oper... | 02/21/1995 |
| 5375664 | Pile driver A hydraulic pile driver (9) including a backhoe (10), a lead (30), a vibratory hydraulic hammer (38), and a winch (46), for driving pin pile or needle pile (44) into the ground. The lead (30) is limited in height, as is the backhoe (10) in size, so that t... | 12/27/1994 |
| 5355965 | Mounting apparatus for a rotational drive unit A mounting apparatus for a rotational drive unit. The rotational drive unit includes a socket portion which receives a truck or carrier. Opposing engagement surfaces of the carrier are separated by a distance greater than the length of the socket. The res... | 10/18/1994 |
| 5343962 | Double rod cylinder feed system A hydraulic system for moving a drilling head in a rectilinear motion between a mast crown and a mast table on a drilling machine includes a double rod hydraulic cylinder connected at a bottom end to a mast table and at a top end to a traveling sheave blo... | 09/06/1994 |
| 5294318 | Crustbreaking assembly for aluminum electrolysis cells A crustbreaking assembly comprising elongated rails supported on a frame and a carriage moveable along the length of the rails. A slide assembly pivotally mounted on the carriage for rotation about an axis which is substantially parallel to the rails. A h... | 03/15/1994 |
| 5226488 | Truck mounted boring system A truck mounted boring system providing a high degree of radial and longitudinal freedom. The system provides a method of quickly setting up a boring system used for directional drilling of underground cabling bore holes. A hydraulic system providing powe... | 07/13/1993 |
