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| Number | Title | Issue Date |
| 8100205 | Robotic system and method of use A robotic system that can have a body and four flippers is described. Any or all of the flippers can be rotated. The flippers can have self-cleaning tracks. The tracks can be driven or passive. The robotic system can be controlled by, and send audio and/or video to ... | 01/24/2012 |
| 8083014 | Undercarriage for a tracked vehicle In a first aspect, the invention is directed to an undercarriage for a tracked vehicle. The undercarriage includes a main frame including a frame body and an equalizer bar extending laterally on either side of a pivot connection with the frame body, a first track fr... | 12/27/2011 |
| 8056654 | Snowmobile exhaust system An exhaust system is provided for a snowmobile having a front portion in which an engine is mounted, a rearward portion, and a track belt for propelling the snowmobile. The track belt is in a track belt tunnel that extends from behind the engine to a rear portion of... | 11/15/2011 |
| 7954575 | Leader string pull-through machine A crawler device for pulling a leader string through electrical or cable conduit. The crawler device has a traction head, for example using caterpillar-type rubber tracks, biased outwardly into contact with the inner wall of the conduit when inserted in the conduit.... | 06/07/2011 |
| 7874386 | Hybrid mobile robot A hybrid mobile robot includes a base link and a second link. The base link has a drive system and is adapted to function as a traction device and a turret. The second link is attached to the base link at a first joint. The second link has a drive system and is adap... | 01/25/2011 |
| 7870914 | Traction assembly for a vehicle This invention relates to a traction assembly for a vehicle which uses an endless traction band and a plurality of wheels for propulsion. More particularly, the traction assembly comprises a sprocket wheel which has a different size and number of sprocket teeth depe... | 01/18/2011 |
| 7866420 | Track tensioning system for a tracked vehicle A tensioning system for an endless track of a crawler-type vehicle includes an actuator, such as a dual-acting hydraulic cylinder and piston, which is coupled to a roller to translate the roller into and out of engagement with the endless track to tension or slack t... | 01/11/2011 |
| 7815000 | Fully welded track undercarriage transmission with inboard motor mounting flange A track driven vehicle has an undercarriage transmission assembly that has a central transmission housing forming a one piece all welded housing. The central transmission housing has upright side wall portions with multiple layers of plates or walls in a sandwich co... | 10/19/2010 |
| 7784570 | Robotic vehicle A robotic vehicle is disclosed, which is characterized by high mobility, adaptability, and the capability of being remotely controlled in hazardous environments. The robotic vehicle includes a chassis having front and rear ends and supported on right and left driven... | 08/31/2010 |
| 7730979 | Method of, and apparatus for, cleaning the exterior of tubing An apparatus for cleaning a bank of tubing includes a small, portable, mobile, remote controlled cart that travels over the surface of the banking of tubing and directs at least one high pressure fluid jet onto the surfaces of the tubes comprising the banks of tubin... | 06/08/2010 |
| 7614465 | Sub-frames for a working vehicle A working machine having a main frame structure which includes a pair of endless tracks. Each track is entrained about track supporting devices mounted by a track sub-frame. The sub-frame includes inner and outer members interconnected by cross members. The inner an... | 11/10/2009 |
| 7600592 | Variable configuration articulated tracked vehicle A variable configuration articulated tracked vehicle comprises a chassis, a pair of right and left drive pulleys, a right and left planetary wheel, a right and left track, a right and left arm mechanism, and a right and left drive motor. The drive pulleys are rotata... | 10/13/2009 |
| 7600593 | Robotic vehicle with dynamic range actuators A robotic vehicle including a chassis having front and rear ends, an electric power source supported by the chassis, and multiple drive assemblies supporting the chassis. Each drive assembly including a track trained about a corresponding drive wheel and a drive con... | 10/13/2009 |
| 7581605 | Quad tracked vehicle A quad tracked vehicle may include a forward starboard track arm, an aft starboard track arm, a forward port track arm, and an aft port track arm. Forward track arms may be mounted for rotation about a vehicle body around axis of forward track arm by a forward coaxi... | 09/01/2009 |
| 7571783 | Mounting structure of an endless track carrier roller Disclosed is a mounting structure of a carrier roller that can decrease vibration occurred in an endless track chain assembly because a location of a carrier roller installed on a lower frame can be controlled. According to the present invention, the mounting struct... | 08/11/2009 |
| 7562727 | Track suspension system for a skid steer loader A track suspension system for a skid steer loader for effectively traversing rough terrain. The track suspension system for a skid steer loader includes an undercarriage attached to a skid steer loader, a drive wheel attached to a wheel axle of the skid steer loader... | 07/21/2009 |
| 7543664 | Mono-track vehicle A vehicle includes a motorized belt track directly or indirectly connected to a frame. The belt track frictionally contacts a drive surface on which the vehicle moves, such as any form of road or off-road surface. The belt track moves forward and backward in a direc... | 06/09/2009 |
| 7493976 | Variable configuration articulated tracked vehicle A variable configuration articulated tracked vehicle comprises a chassis, a pair of right and left drive pulleys, a right and left planetary wheel, a right and left track, a right and left arm mechanism, and a right and left drive motor. The drive pulleys are rotata... | 02/24/2009 |
| 7490682 | Device for reversing the steering movement of a steering-wheel shaft of a vehicle A device for reversing the steering movement of a steering-wheel shaft of a vehicle by superimposing a further movement on the steering movement. ... | 02/17/2009 |
| 7478688 | Anti-dive/squat suspension system A suspension system is provided for a vehicle track assembly having a lower front idler wheel, a lower rear idler wheel, an upper drive wheel, a support link, a plurality of lower support wheels arranged between the idler wheels and mounted on the support link, and ... | 01/20/2009 |
| 7461711 | Superconducting crawler system for a production line An equipment-carrying crawler (20) includes a rolling track (44) and a structural support (70). The structural support (70) supports equipment (16). Lifting magnets (72) are coupled to the rolling track (44) and to th... | 12/09/2008 |
| 7461710 | Electric steering and drive system for a vehicle with wheel side steering system The invention relates to an electrical steering and drive system for a vehicle with wheel-based steering with at least two electrically driven axles, a mechanical coupling between the drive sides being provided on at least one driven axle in order to transmit power ... | 12/09/2008 |
| 7434644 | Powered snowboard A powered snowboard having a drive assembly mounted thereon, the drive assembly including a frame, a track assembly having a track suspended over multiple wheels, the track assembly being supported in the frame such that it is able to travel in a vertical direction ... | 10/14/2008 |
| 7387179 | Toroidal propulsion and steering system An apparatus comprises a body having a torus skin with inner and outer layers, and a drive system configured to propel the apparatus by moving the inner layer relative to the outer layer. The active skin propulsion system allows movement and steering of a device. A ... | 06/17/2008 |
| 7372229 | Robot for surgical applications The present invention provides a micro-robot for use inside the body during minimally-invasive surgery. The micro-robot includes an imaging devices, a manipulator, and in some embodiments a sensor. ... | 05/13/2008 |
| 7367637 | Endless track for high speed multi-terrain vehicles The track design for use with a tracked vehicle includes a cantilever cut made down into the outward side of each tread just outboard of the position where the inside of the track contacts the outboard edge of the tread of the outer wheel of each pair of track-suppo... | 05/06/2008 |
| 7363994 | Wheeled platforms A wheeled platform 100 is disclosed, which is characterized by high mobility and reliability, and which can be used in a wide range of applications including transport and robotic devices. The wheeled platform 100 has fore and aft body portions 130,... | 04/29/2008 |
| 7354222 | Belted asphalt compactor A belted asphalt compactor and method are provided. The compactor includes a first unit with a roller frame. A second unit is coupled to the first unit, and is generally identical thereto. At least one mid roller and two end rollers are mounted in the roller frames,... | 04/08/2008 |
| 7343991 | Electrically driven track wheels for tracked vehicles An electrically driven wheel for a tracked vehicle which includes a driving track wheel with built in cogs and a brushless DC motor having a mounting shaft to connect the wheels to the tracked vehicle. The brushless DC motor is coupled within the driving track wheel... | 03/18/2008 |
| 7328760 | Semi tracked-type working vehicle A semicrawler-type working vehicle is provided having a vehicle body (3), a front steering control wheel (7) arranged at a front side of the vehicle body, a drive shaft (26) and a pivot shaft (22) arranged at a rear side of the vehicle bo... | 02/12/2008 |
| 7326141 | Compact fault tolerant variable cross-drive electromechanical transmission A transmission drive system (TDS) has two AC induction traction motors, each operatively coupled to two semi-independent coaxial traction shafts, and two AC induction steer motors coaxially mounted on a common steer axis parallel to the coaxial traction shafts. A st... | 02/05/2008 |
| 7325634 | Track-mounted drilling machine with active suspension system A drilling machine includes a frame, two tracks, and a plurality of yokes interconnecting the frame and the tracks. Each yoke is pivotable with respect to the frame by the extension and retraction of a hydraulic cylinder. Each of a plurality of sensors senses a para... | 02/05/2008 |
| 7322865 | Belt drive propulsion system An apparatus and method for providing propulsion to naval vehicles by using one or more suspended belt drives to consistently engage the water proximate to the surface using a variety of belts with multiple attachments, tires, or variable lugs. The drive belt system... | 01/29/2008 |
| 7293375 | Crawler frame for construction machine In a crawler frame in which legs in a center frame are formed from cast steel, a simple structure is achieved by reducing the number of components. To this end, the crawler frame, which has a center frame composed of a central frame section for supporting a swing be... | 11/13/2007 |
| 7293374 | Crawler frame for construction machine A crawler frame includes a center frame and right and left track frames disposed at right and left sides of the center frame so as to extend in a back and forth direction, wherein legs for connecting a central frame section of the center frame to the track frames ar... | 11/13/2007 |
| 7267189 | Crawler track The invention relates to an undercarriage, preferably for a crawler-mounted crane, comprising a crawler track which runs on a crawler carrier and which consists of base plates articulatedly connected to one another, with cams being formed on the base plates which la... | 09/11/2007 |
| 7264062 | Remotely operable fire-fighting vehicle A remotely operably vehicle includes a body defining a cavity therebeneath and further includes a mechanism for remotely propelling the vehicle during operating conditions and a mechanism for remotely discharging fluids outwardly from the vehicle. The vehicle furthe... | 09/04/2007 |
| 7255184 | Track assembly A track assembly having first and second hub assemblies that are operatively connected to a support frame by first and second attachment members, respectively. The first and second attachment members include resilient or movable mounts that are configured so that th... | 08/14/2007 |
| 7249641 | Crawler type traveling apparatus and pivot shaft The crawler type traveling apparatus 5 includes a pivot shaft 6 provided on a vehicle body having a hydraulic source in a protruding state, a track frame 51 rocking around and pivotably supported against this pivot shaft 6, a final reduct... | 07/31/2007 |
| 7235046 | Toroidal propulsion and steering system An apparatus comprises a body having a torus skin with inner and outer layers, and a drive system configured to propel the apparatus by moving the inner layer relative to the outer layer. The active skin propulsion system allows movement and steering of a device. A ... | 06/26/2007 |
