Portable Track Patents (Class 180/9)
  • Patent number: 10647366
    Abstract: An autonomous surface treating appliance comprising a chassis having a drive arrangement and a control system interfaced to the drive arrangement so as enable control of the appliance across a surface to be treated, wherein the drive arrangement comprises at least one traction unit, each traction unit comprising a surface-engaging track constrained around a leading wheel and a trailing wheel, the leading wheel and the trailing wheel being arranged so that a track portion opposing the floor surface and extending between the leading and trailing wheels defines a ramped climbing surface.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: May 12, 2020
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Peter David Gammack, Mark Stamford Vanderstegen-Drake, Paul Joshua Bott
  • Patent number: 9828729
    Abstract: For the construction of synthetic grass playing fields, a plurality of panels (1, 1?, 1?) are manufactured by injection molding and stacked in groups (50). Each stacked group (50) is placed on a distributor vehicle (90) moved along a covering direction (Z), so that the panels (1) which compose the group (50) are able to rotate relative to each other with respect to a main direction (X) orthogonal to the covering direction (Z), so that a row of panels is constructed.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 28, 2017
    Assignee: AGRIPOOL S.r.l.
    Inventor: Riccardo Maritano
  • Patent number: 9649924
    Abstract: A work or utility vehicle utilizing a drive source, a vehicle body frame, left and right front wheels supported on the vehicle body frame and left and right rear wheels supported on the vehicle body frame. A transmission case is supported on the vehicle body frame and transmits a driving force from the drive source to at least the left and right rear wheels. A guard member protects the transmission case. A stabilizer is supported at two ends by suspension arms of the left and right rear wheels. The guard member is arranged on a rear side of the transmission case and the stabilizer is arranged forwardly of the guard member.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 16, 2017
    Assignee: KUBOTA CORPORATION
    Inventors: Yuki Nakaoka, Takashi Kuramoto, Akira Tominaga, Kodai Tateishi, Takeshi Tsuchiya
  • Publication number: 20150053432
    Abstract: A Robotic Roof Ventilation Apparatus that preforms the process of roof ventilation to protect the lives of firefighters. By keeping the firefighters off the roof of a burning building this robot completely changes the current process of roof ventilation as it provides a reliable way for firefighters to preform roof venation without any risk or loss of life.
    Type: Application
    Filed: August 19, 2014
    Publication date: February 26, 2015
    Inventor: Drew R. Davis
  • Patent number: 8875829
    Abstract: Provided is a construction machine, wherein an upper slewing body comprises a slewing frame and first and second power units, and wherein the second power unit comprises a second engine, a second controller to control driving of the second engine, a second hydraulic oil tank, a second hydraulic pump configured to be driven by the second engine to thereby suck hydraulic oil from the second hydraulic oil tank and discharge the hydraulic oil toward a hydraulic actuator, a second fuel tank configured to store fuel, and a second support member supporting the second engine, the second hydraulic oil tank, the second hydraulic pump and the second fuel tank, and wherein the second support member is configured to be attachable and detachable with respect to the slewing frame independently of a first support member of the first power unit, and the second hydraulic pump is detachably connected to the hydraulic actuator.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 4, 2014
    Assignee: Kobelco Cranes Co., Ltd.
    Inventors: Tomohiko Asakage, Hironori Takenaka
  • Publication number: 20140190756
    Abstract: The present invention relates to a steering device (I) comprising a steering member (10) for mutually steering a first vehicle unit (2) and a second vehicle unit (3) of an articulated vehicle (1) comprising means (30, 32) for mutually pivoting said vehicle units, wherein the steering device comprises a housing configuration (50) arranged to form a supply space between said vehicle units (2, 3), comprising means (5, 6, 8, S; 60, 62, A, O) arranged for removal of stuff in the supply space (S) incoming from the surrounding. The invention also relates to an articulated vehicle with a steering member.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 10, 2014
    Inventors: Max Thorén, Martin Carlsson
  • Publication number: 20140124276
    Abstract: A series electric drive includes a cylindrical first rotor with a number of permanent magnets therein and an input linked to the cylindrical first rotor. The series electric drive further includes a cylindrical second rotor stacked radially within the cylindrical first rotor, the cylindrical second rotor being a wound rotor, and an output being linked to the cylindrical second rotor. A cylindrical stator is stacked axially relative to the first rotor, and a portion of the second rotor is stacked radially within the cylindrical stator, the cylindrical stator being a wound stator.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: CATERPILLAR, INC.
    Inventors: Krishnakumar Ramamoorthy, Sami Alkhouli
  • Patent number: 8413747
    Abstract: An endless-track type climbing vehicle containing a multi-link suspension apparatus to uniformly distribute the forces on the on the adhering members while traversing irregular climbing surfaces. The multi-links suspension apparatus is able to conform to large range of surface irregularities while providing push and pulling forces on the adhering members to uniformly distribute the climbing loads on the adhering members. The result is a climbing machine that can accommodate large surface irregularities while maximizing the climbing payload with a minimum number and size of adhering members.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: April 9, 2013
    Inventors: James Walter Beard, Stephen Lee Canfield, Steven Marc Glovsky
  • Patent number: 8333389
    Abstract: An apparatus is disclosed for use on standard or customized wheelchairs for moving the wheelchair and wheelchair occupant up or down a stairway or stairway-like structure (e.g., a curb) with greater confidence and stability to the occupant of the wheelchair and its handler(s). The apparatus includes a motorized assembly that interacts with stair steps when the apparatus and wheelchair are tilted backwardly. The motorized assembly allows the wheelchair to glide or move up or down the steps without experiencing the bumps commonly associated with rolling a wheelchair up or down a set of stairs. The apparatus includes a headrest to provide comfort to the occupant during operation and includes pivoting handlebars to allow the operator of the wheelchair to control the movement of the wheelchair. The apparatus is mountable to, and removable from (when not in use), the wheelchair. The apparatus can be considered as a retrofit.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 18, 2012
    Inventors: Steven Rembos, Rick Guindon, Kenneth Muderlak, Todd J. Muderlak
  • Patent number: 8286975
    Abstract: The invention provides an evacuation device for one operator, with a plurality of babies secured in pockets, having their heads secured in adjustable cushioned head rests which are attached to a patient support membrane, to descend a stairwell safely and quickly during an emergency. The invention is constructed of a tubular frame, covered with a fire-retardant, water impermeable and mold and fungus resistant material. The invention incorporates a set of casters for transport across a horizontal plane, such as crowded hallways and small hospital stairwell landings. The dual track system permits the operator to glide down the stairs in a safe, smooth and controlled fashion. The dual braking device on the track system assists the operator in a stairwell descent and permits the operator to release the chair and remove any debris that may be in the path of evacuation.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: October 16, 2012
    Inventor: Douglas Damasse Gervais
  • Publication number: 20120111649
    Abstract: An endless-track type climbing vehicle containing a multi-link suspension apparatus to uniformly distribute the forces on the on the adhering members while traversing irregular climbing surfaces. The multi-links suspension apparatus is able to conform to large range of surface irregularities while providing push and pulling forces on the adhering members to uniformly distribute the climbing loads on the adhering members. The result is a climbing machine that can accommodate large surface irregularities while maximizing the climbing payload with a minimum number and size of adhering members.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 10, 2012
    Inventors: James Beard, Stephen Canfield, Steve Glovsky
  • Patent number: 8047311
    Abstract: A track driven vehicle comprises a structural member underneath the vehicle. The structural member includes a plurality of structural member apertures for receiving fasteners inserted therethrough. The vehicle also includes a first track carrier and a first mounting strut attached to the first track carrier. The first mounting strut, which attaches the first track carrier to the structural member, includes a plurality of mounting strut apertures which, when aligned with the structural member apertures, receive the fasteners inserted therethrough. One of the first mounting strut and the structural member includes a fixedly attached dowel pin, and the other of the first mounting strut and the structural member includes a pin receiving aperture. When attaching the first track carrier to the structural member using the first mounting strut, the dowel pin extends into the pin receiving aperture to prevent cross-shearing between the structural member and the first mounting strut.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: November 1, 2011
    Assignee: Clark Equipment Company
    Inventors: Robert D. Waletzko, Jeret L. Hoesel, Jason J. Asche
  • Patent number: 7988157
    Abstract: An apparatus is disclosed for use on standard or customized wheelchairs for moving the wheelchair and wheelchair occupant up or down a stairway or stairway-like structure (e.g., a curb) with greater confidence and stability to the occupant of the wheelchair and its handler(s). The apparatus includes a motorized assembly that interacts with stair steps when the apparatus and wheelchair are tilted backwardly. The motorized assembly allows the wheelchair to glide or move up or down the steps without experiencing the bumps commonly associated with rolling a wheelchair up or down a set of stairs. The apparatus includes a headrest to provide comfort to the occupant during operation and includes pivoting handlebars to allow the operator of the wheelchair to control the movement of the wheelchair. The apparatus is mountable to, and removable from (when not in use), the wheelchair. The apparatus can be considered as a retrofit.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 2, 2011
    Inventors: Steven Rembos, Rick Guindon, Kenneth Muderlak, Todd J. Muderlak
  • Patent number: 7896113
    Abstract: A robotic system adapted to deploy from a police vehicle for inspecting a suspect vehicle has a robot unit and a carrier unit. The robot unit includes a robot base having a drive system responsive to a control unit having a robot transceiver, and a camera operably mounted on robot unit for inspecting the suspect vehicle. A primary display adapted to be operably positioned within the police vehicle functions for displaying the images from the camera. A remote control unit, also adapted to be operably positioned within the police vehicle, enables the user to operably control the control unit of the robot unit. The carrier unit includes a carrier housing that pivots between a raised position for carrying the robot unit, and a lowered position for deploying the robot unit.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: March 1, 2011
    Inventor: Fernando Ramirez
  • Patent number: 7849942
    Abstract: A vehicle is adapted to operate on land and in water having a depth of over four feet. The vehicle includes a chassis, one or more pontoons supported by the chassis, and a track system disposed on each of the one or more pontoons and adapted to provide propulsion to the vehicle. Each pontoon has a height of at least four feet, a width and a length adjacent to the land, wherein a ratio of the height to the width exceeds 1.4, and a volume configured to provide buoyancy and support the chassis weight.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: December 14, 2010
    Assignee: Wilco Marsh Buggies and Draglines, Inc.
    Inventors: Dean Randal Wilson, John Michael Wilson, Sr.
  • Patent number: 7836811
    Abstract: Systems are described herein for remotely aligning and placing disruptive devices at or near suspicious targets such as suspected improvised explosive devices (IEDs). In particular, tools connected to remotely controllable robots include disruptor guns for firing disruptive materials at the targets and disruptive devices filled with explosive materials, e.g., water, for controllably detonating or disrupting the detonation of the targets when placed in close proximity thereto.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: November 23, 2010
    Assignee: Science Applications International Corporation
    Inventors: Christopher W. Gardner, Benjamin V. Stratton, Aaron Robbins
  • Patent number: 7748487
    Abstract: This invention provides a device capable of covering the surface of an object situated in a gas with a region filled with a liquid and of moving such region, capable of sucking and collecting such liquid from the surface of the object wetted by the liquid and of drying such surface, and is capable of allowing such region to adhere to and crawl along the surface of the subject, while conducting ultrasonic flaw detection or ultrasonic cleaning of the surface of the object.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 6, 2010
    Inventor: Fukashi Urakami
  • Publication number: 20100059298
    Abstract: Described herein is electroadhesion technology that permits controllable adherence between two objects. Electroadhesion uses electrostatic forces of attraction produced by an electrostatic adhesion voltage, which is applied using electrodes in an electroadhesive device. The electrostatic adhesion voltage produces an electric field and electrostatic adherence forces. When the electroadhesive device and electrodes are positioned near a surface of an object such as a vertical wall, the electrostatic adherence forces hold the electroadhesive device in position relative to the surface and object. This can be used to increase traction or maintain the position of the electroadhesive device relative to a surface. Electric control of the electrostatic adhesion voltage permits the adhesion to be controllably and readily turned on and off.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 11, 2010
    Applicant: SRI INTERNATIONAL
    Inventors: Ronald E. Pelrine, Harsha Prahlad, Roy D. Kornbluh, Patrick D. Lincoln, Scott Stanford
  • Patent number: 7617891
    Abstract: A self-propelled mechanical crawler adapted to move on a medium. One example of such a crawler includes a foot, a wave generator adapted to drive a periodic wave in the foot, and a wave transfer mechanism coupled between the wave generator and the foot. The wave transfer mechanism may be adapted to translate the periodic wave produced by the wave generator into a corresponding periodic deformation in the foot so as to generate forces in the medium to propel the crawler.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: November 17, 2009
    Assignees: Schlumberger Technology Corporation, Massachusetts Institute of Technology
    Inventors: Brian Chan, Julio Guerrero, Anette Hosoi
  • Patent number: 7614627
    Abstract: A runner for a snowmobile ski is fabricated from flat metal plate stock and incorporates mounting features for securing the runner to the ski and a wear strip of a relatively harder material provided on and projecting from a lower surface of the runner body. A quick release mounting system is provided for attaching the runner to the ski, including quick installation and release wedge mounting systems. The thin runner blade and wear strip are of the same thickness and are joined by a brazed joint. The invention contemplates a method of fabricating the runner and a method of mounting the runner.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: November 10, 2009
    Assignee: International Engineering & Manufacturing, Inc.
    Inventor: Robert Musselman
  • Patent number: 7543664
    Abstract: 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 direction parallel to a centerline of the belt track to move the vehicle backward and forward along the drive surface. A steering appendage is also directly or indirectly connected to the frame. The steering appendage is also adapted to frictionally contact the drive surface. The steering appendage is off the centerline of the belt track. The steering appendage causes the vehicle to turn from the centerline of the belt track when in contact with the drive surface.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: June 9, 2009
    Assignee: The Johns Hopkins University
    Inventor: Carl V. Nelson
  • Patent number: 7513326
    Abstract: A working machine is constituted so as to mount a guard cover hinge, a radiator duct, a canopy right support, a hood catch and the right end part of a seat stand on a radiator support. The working machine further comprises a mounting column provided on the opposite side of the radiator support so as to mount a hood hinge, a left side panel, the left end part of the seat stand and a muffler cover thereon. According to such a structure, a mounting member shared by a plurality of constituting members can be used also as a positioning support between members, and the workability in assembling can be improved.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: April 7, 2009
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventor: Isao Miyachi
  • Patent number: 7497447
    Abstract: A snowmobile ski including a runner fabricated from flat metal plate stock and incorporating mounting features for securing the runner to the ski and a wear strip of a relatively harder material provided on and projecting from a lower surface of the runner body. A quick release mounting system is provided for attaching the runner to the ski, including quick installation and release wedge mounting systems. The thin runner blade and wear strip are of the same thickness and are joined by a brazed joint. The invention contemplates a method of fabricating the runner and a method of mounting the runner.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: March 3, 2009
    Assignee: International Engineering & Manufacturing, Inc.
    Inventor: Robert S Musselman
  • Publication number: 20080257616
    Abstract: A tracked vehicle, especially a snow scooter, that has two laterally spaced-apart front drive-track assemblies (10), each of which is turnable around a substantially vertical axis and which are coupled for common turning. Each drive-track assembly is carried by a vehicle chassis (11) via a vertically movable link device, which in respect of vertical turning rests against the chassis via a spring-damper assembly (7), and the drive-track assemblies are mechanically coupled by a parallel steering mechanism (23-26), which is manoeuvrable by a driver of the vehicle.
    Type: Application
    Filed: August 31, 2006
    Publication date: October 23, 2008
    Inventor: Ake Olsson
  • Publication number: 20080217077
    Abstract: A lightweight vehicle ladder for the recovery and traction of vehicles includes a central recessed portion (48) bordered by longitudinal strengthening ribs (56) and ramps (55) at either end. A plurality of traction members (52), each of which terminates in an upper tire engagement member (54) are disposed within the recessed portion and thereby somewhat protected from the ingress of mud during use in order that traction may be maintained. The underside and topside of the vehicle are formed with complementary shapes in order that a number of the ladders may be stacked one on top of the other to form a laminate of increased strength for application with particularly heavy vehicles.
    Type: Application
    Filed: October 13, 2006
    Publication date: September 11, 2008
    Inventor: Bradley John McCarthy
  • Patent number: 7389846
    Abstract: A personal all-terrain vehicle is provided which is suitable for driving between rows of a vineyard for trimming vines. The vehicle includes a frame and an engine. A driver seat of the vehicle is positioned at an end of the frame beyond the wheels of the vehicle in the longitudinal direction of the vehicle facing perpendicularly to the longitudinal direction of the vehicle. Drive controls are foot and leg so that the operator's hands are free for performing work. A hitch member is supported at a rear end of the vehicle adjacent the seat for towing a cart including a tub for carrying trimmings therein. A chipper unit on the cart shreds the vine trimmings into smaller particulates.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: June 24, 2008
    Inventors: Stanley Lawrence Grywacheski, Rene Raymond Rosset, John Laurence Enns
  • Patent number: 6890042
    Abstract: A crawler traveling apparatus includes a rubber crawler belt having a plurality of driving projections formed with a predetermined peripheral pitch on an inner peripheral face of the belt, a drive wheel rotatable when engaged with the driving projections of the crawler belt for driving the belt, and a plurality of free wheels rotatable for laterally guiding the driving projections under movement. Each driving projection has an upper half having a lateral face including an upper half lateral face portion and a lower half having a lower half lateral face portion, the upper half lateral face portion having an erect inclination angle smaller than an erect inclination angle of the lower half lateral face portion. Each free wheel has an inner lateral face opposed to the driving projection, the inner lateral face having an inclined guide face having an inclination parallel to the lower half lateral face portion of the driving projection.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: May 10, 2005
    Assignee: Kubota Corporation
    Inventors: Motonari Inaoka, Yuji Tomiyama, Yoshikazu Aota, Takashi Kobayashi
  • Patent number: 6696122
    Abstract: A temporary surface covering with a woven structure formed of warp threads and weft threads and whose weave is such that each warp thread intersects or intertwines with the following weft threads, and a second auxiliary woven structure being superposed having a layer of warp threads and a layer of weft threads, the connection between the two woven structures being carried out in the course of a same weaving operation simultaneously with the overlapping of the structures, so as to constitute between the two structures, from place to place, tubular pockets oriented in the direction of the warp threads or in the direction of the weft threads, the pockets serving for the reception of elements devoted to various uses.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: February 24, 2004
    Assignee: Etablissements A. Deschamps & Fils.
    Inventor: Georges-Paul Deschamps
  • Publication number: 20030136592
    Abstract: The invention relates to a crawler running gear, particularly for a construction machine. A mid-section and two crawler supports with in each case a crawler chain are provided. The crawler supports are located along a longitudinal direction on both longitudinal sides of the mid-section and in each case detachably fixed to at least two crossbeams. The crossbeams are displaceably mounted in a transverse direction on the mid-section. For simplifying installation, the crossbeams have on their end directed towards the crawler support an at least zonally conically tapering mounting journal and on the crawler supports are provided mounting holes, which are constructed so as to correspond to the mounting journals of the crossbeams.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 24, 2003
    Inventor: Werner Harthauser
  • Publication number: 20030079922
    Abstract: A four wheel drive carrier having a frame and a carrier body secured to the frame. The carrier body has brake and movement control apparatus secured therein. A pair of wheels and a pair of wheel tracks are secured to the frame for forward and reverse propulsion. A drive engine is operably mounted on the frame and is communicatively linked to the pair of wheels, and to the pair of wheel tracks by a hydraulic drive mechanisms. A throttle mechanism is operably engaged to the drive engine and one or more swing arms are operably secured to the frame.
    Type: Application
    Filed: October 29, 2001
    Publication date: May 1, 2003
    Inventor: Jeffery D. Campbell
  • Publication number: 20020185319
    Abstract: A load-carrying transport apparatus for moving a heavy load, such as an oil drilling rig, over a surface includes a substructure for carrying the load, a track member positioned on the surface adjacent the substructure and a plurality of lift assemblies mounted on the substructure selectively operable for extension toward the surface to engage the track member and raise the substructure above the surface so that it is carried on the track member. The lift assemblies are also operable for retraction to lower the substructure onto the surface. A shifter mechanism disposed adjacent to the substructure and the track member is selectively operable for displacing the substructure along the track member when the lifting assemblies have been extended toward the surface to raise the substructure above the surface. The shifter mechanism is also operable for displacing the track member on the surface relative to the substructure when the lifting assemblies have been retracted and disengaged from the track member.
    Type: Application
    Filed: May 9, 2001
    Publication date: December 12, 2002
    Inventor: Harlan B. Smith
  • Publication number: 20020134595
    Abstract: A pressure receiving surface (8) having a diameter gradually decreasing in an axially inward direction is formed at an outer end portion of a pin (1), whereas a pressing portion (7) is formed at a circumferential edge of an opening of a pin insertion hole (5) of a link (2). A retaining ring (3) is formed with a friction surface (9) to be press-contacted to the pressure receiving surface (8) when a force is applied from the pressing portion (7) upon development of a relative movement in a disengaging direction. The retaining ring (3) and the pressure receiving surface (8) share a greater area of contact than in the prior art, providing sufficient friction. This makes possible to provide a fastening structure of the link and the pin of a crawler belt which can be assembled by simple operation at a low cost, without requiring a high machining accuracy, and thus can be manufactured at a low cost.
    Type: Application
    Filed: April 19, 2002
    Publication date: September 26, 2002
    Inventors: Akira Hashimoto, Hiroyuki Nakaishi, Teiji Yamamoto
  • Publication number: 20020066604
    Abstract: An apparatus for transporting a working machine, e.g., an excavating machine, movable on crawler tracks and being provided with an excavating mechanism. The apparatus includes at least two spaced-apart wheels and a load platform mounted therebetween. The working machine is secured at one end to the load platform and at the other end props against a tractor vehicle via the excavating mechanism. The working machine may be driven onto the load platform where its advancement is stopped by a guard on the load platform. As the working machine moves into contact with the guard, the mass of the working machine delivers to the load platform a moment that forces the load platform to pivot against the bottom surface of a crawler track. At least one gripping element on the load platform eliminates relative slippage between the crawler track and the load platform and locks the working machine against the guard. One such apparatus is Provided for each track of the working machine.
    Type: Application
    Filed: October 25, 2001
    Publication date: June 6, 2002
    Inventor: Ossi Kortesalmi
  • Publication number: 20010040058
    Abstract: A tracked vehicle produces a pressure no more than 3 psi on the ground by increasing the number of contact points on the inner surface of the track. The stiffness of the track is also selected to minimize bowing between the idler wheels or rollers. The track is therefore kept substantially straight between the rollers so increase the efficiency associated with transferring power to track. The drive sprocket is positioned above the ground so as to eliminate complexity in the design and yet effectively transmit power to the tracks. Positioning the drive sprocket above ground also prevents derailing of the track. The track is also held in a constant state of tension on the driver sprocket and the roller. This too prevents derailment. The undercarriage of the vehicle includes torsion axles and sealed bearings to provide for a lower maintenance track. Components associated with the undercarriage do not require constant greasing and cleaning of the idler wheels.
    Type: Application
    Filed: January 16, 2001
    Publication date: November 15, 2001
    Applicant: A.S.V., Inc.
    Inventors: Gary Lemke, Brad Lemke, Cary Safe, Edgar Hetteen
  • Patent number: 4534431
    Abstract: A supporting feeder assembly for material handling machines primarily for use on soft ground when the material handling machine fastens. The feeder assembly comprises an elongate beam unit secured to the implement mount of the material handling machine disposed at the front of said machine. A carriage can move along the beam unit either by rolling freely or by positive displacement and supports a carrier assembly. If the front wheels of the material handling machine fasten the driver can raise them from the ground by lowering the implement mount and can drive the machine forward by means of the larger rear wheels or with the aid of an implement disposed at the rear of the machine, for example a digging bucket, as the carrier assembly engages the ground and the material handling machine moves forward in consequence of the beam unit running on the carriage.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: August 13, 1985
    Inventor: Bo Aronsson
  • Patent number: 4380135
    Abstract: A four wheel drive toy includes a drive mechanism and two pairs of elongated movable track portions mounted on a frame, each pair of track portions including a follower gear driven through an independent gear train from the drive mechanism. An interior surface of each track portion includes an oval endless rack gear engaged by the gear follower. The orbit of the gear follower around the rack gear is made visible from the exterior of the vehicle by using flanges attached to either side of the follower gear to retain the follower gear within the interior of the track portion. The track portion pivots about the axis of the follower gear when the follower gear reaches the arcuate region of the oval rack gear.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: April 19, 1983
    Assignee: Marvin Glass & Associates
    Inventors: John R. Wildman, Howard J. Morrison
  • Patent number: 4351380
    Abstract: The track belt assembly of the present invention comprises a plurality of shoes spaced about the periphery of a load-supporting structure. A reinforcing belt structure is disposed on the side of the shoe opposite the ground-engaging side thereof. Each shoe is secured at its lateral ends to the belt reinforcing structure by two separate anchor plates disposed on the side of the belt opposite that which is adjacent the shoes.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: September 28, 1982
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Charles J. Pilliod, Jr., Roger E. Payne
  • Patent number: 4323260
    Abstract: A folding chair and cart structure having an upright frame and a transverse member pivoted thereto, one end of the transverse frame forming a seat portion and the other end extending beyond the upright frame and carrying a pair of wheels, a sheet of canvas secured to the upright and transverse frames to form a seat and a track for removable engagement with the wheels. The structure functions as a cart by merely tilting the upright frame to a horizontal position and the entire structure is foldable into a compact unit for transport and storage.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: April 6, 1982
    Inventor: Adalbert W. Suchy
  • Patent number: 3976152
    Abstract: A wheelchair provided with pivotable ramps to enable curb-climbing which is provided with means to enable it to mount curbs. The wheelchair comprises three or more wheels and at least one pivotally mounted arm on which a ramp member is itself pivotally mounted. The or each arm may be pivoted to a position in which the ramp it supports is placed in a predetermined orientation in the path of a respective wheel or the chair so that the said respective wheel may run up the ramp to mount a curb.
    Type: Grant
    Filed: November 15, 1974
    Date of Patent: August 24, 1976
    Inventor: Albert Bell