Driven Steering Wheel Type Patents (Class 180/12)
  • Patent number: 10233611
    Abstract: A work machine may include a power module including a battery and engine and configured to provide power. The work machine also includes a drive module configured with one or more motors and positioned over a track roller frame. The work machine may also include a ripping module configured with one or more ripping devices to cut or rip encountered material. Further, the work machine may also include a hydraulic module including one or more devices in a front region to cut or rip the encountered material.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 19, 2019
    Assignee: Caterpillar Inc.
    Inventors: Matt Brauer, Jacob Carl Wyss
  • Patent number: 10196966
    Abstract: A work machine is provided. The work machines may include a power module configured to provide power including a battery and an engine and configured to a folding heat exchange device. The work machine may also include a drive module configured with one or more motors and positioned over a track roller frame.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: February 5, 2019
    Assignee: Caterpillar Inc.
    Inventors: Matt Brauer, Jacob Carl Wyss
  • Patent number: 10125470
    Abstract: An electric drive machine includes a power module configured to provide power including a battery and an engine coupled to a folding heat exchange device. The electric drive machine may also include a drive module configured with one or more motors and positioned over a track roller frame. The electric drive machine may also include a ripping module configured with one or more ripping devices to rip encountered material. The electric drive machine may also include a hydraulic module with one or more devices in a region to cut or rip the encountered material.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 13, 2018
    Assignee: Caterpillar Inc.
    Inventors: Matt Brauer, Jacob Carl Wyss
  • Patent number: 9410334
    Abstract: A mobile concrete pump with a support structure, which can be placed on a vehicle frame of a truck chassis, for receiving functional units which form a support device and a distributing boom. The functional unit which forms the distributing boom has a rotary head mounted on a boom pedestal in a rotatable manner about a vertical axis, the boom pedestal being secured to the support structure, and the boom pedestal comprises a tank which engages into the support structure and is provided as a rotary bearing for the rotary head. Each functional unit which forms the support device has a support leg mounted in a bearing in a pivotal and/or telescopable manner, the bearing being secured to the support structure. A tank wall of the tank tapering from the top to the bottom in a truncated cone-like manner or in a truncated pyramid-like manner in the cross section, engages into the support structure and is rigidly secured, preferably welded, into the support structure.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: August 9, 2016
    Assignee: Putzmeister Engineering GmbH
    Inventors: Dietmar F├╝gel, Andreas Benz
  • Patent number: 9018876
    Abstract: When a current sensor fails, instead of a normal-time motor control section, an abnormal-time motor control section drives and controls a motor. The abnormal-time motor control section detects a timing at which motor current I becomes zero in a state in which all the switching devices are turned off (S11 to S13). Every time the motor current I becomes zero, the abnormal-time motor control section sets an ON time T0 corresponding to steering torque |tr| (S14 to S15), and turns on the switching devices corresponding to the direction of the steering torque for the ON time T0 (S17 to S20). With this operation, an average current Iavg corresponding to the steering torque |tr| flows through the motor 20, whereby deterioration of the followability of steering assist is suppressed.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: April 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kenichiro Aoki
  • Patent number: 8950522
    Abstract: A drive unit for propelling a cart in a forward or reverse direction or from side-to-side. The drive unit has a top plate affixed to a bottom frame of the cart. A pivot plate carrying a drive wheel carriage is pivoted from the plate. The drive wheel carriage includes a yoke in which a drive wheel is mounted. The drive wheel carriage is rockably and rotatably suspended from the pivot plate with the drive wheel biased out of contact with a supporting surface by a spring and biased into contact with the supporting surface with an inflatable air bag. The drive wheel may propel the cart forward when the drive wheel is aligned with the cart's longitudinal axis and from side-to-side when the drive wheel is aligned with the cart's transverse axis.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: February 10, 2015
    Inventor: Thomas E. Lenkman
  • Patent number: 8910733
    Abstract: A chassis front assembly, a chassis rear assembly and a chassis intermediate assembly are disclosed. The chassis front assembly and the chassis rear assembly are connected to the chassis intermediate assembly for forming a chassis. A kit is also disclosed. A method is also disclosed.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: December 16, 2014
    Assignee: Android Industries LLC
    Inventors: Keith Masserang, Joshua James Hicks, Lawrence J. Lawson, Barry Allan Clark
  • Publication number: 20140202778
    Abstract: A stowable powered jack for steering a boat trailer includes an electric motor turning a drive shaft running longitudinally through a support tube which is mounted to a trailer frame. The drive shaft powers a transmission which sits between a pair of wheels driven by a transverse axle. Controls for the motor provide at least forward and reverse motion for wheels. The transmission is sealed within a housing that is swivels in relation to the fixed support tube. An extendable handle facilitates steering.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 24, 2014
    Inventors: Richard Terrell Barrett, Marc Gray
  • Patent number: 8684113
    Abstract: A device for adapting a manual wheelchair to drive with a powered wheel is disclosed. The device attached to the wheelchair provides means for raising the wheelchair front caster wheels and simultaneously having the powered wheel contact the driving surface. The disclosed device may be rotated so that the powered wheel lifts from the surface as the front caster wheels are lowered to contact the driving surface enabling manual operation of the wheelchair. The disclosed device includes a mechanism for steering the powered wheel, controls for varying the forward or backward speeds and braking. The device may be detached from the chair and is adaptable to fit a large variety of wheelchairs with capability for ergonomically adjusting the steering column for the comfort of the user. Optional human interface devices may be incorporated so the chair occupant may control speed and steering by operating a joystick, head array or other such devices.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: April 1, 2014
    Inventor: Gregory Edward Laconis
  • Patent number: 8590647
    Abstract: A wheelchair tow device which includes a frame sub-assembly, at least one front ground engaging wheel, at least one rear ground engaging wheel, a motive source capable of rotating at least one of the at least one front ground engaging wheel and the at least one rear ground engaging wheel, an energy storage device, wherein the energy storage device is in electrical communication with the motive source, and a handle assembly.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: November 26, 2013
    Inventor: Randall J. Bezile
  • Patent number: 8430189
    Abstract: A power add-on device for powering a manual wheelchair includes a motorized component including dual electric motors and a power source electrically coupled to the electric motors, wherein each of the motors is configured to turn a respective one of a set of drive wheels. The power add-on device includes a latching mechanism adapted to attach the power add-on device to the camber tube of the manual wheelchair; and a controller, reachable by a person sitting in the manual wheelchair, that controls the latching mechanism, the motors, and a swing arm that allows the rear wheels of the manual wheelchair to be lifted off the ground. The front wheels of the manual wheelchair are allowed to be lifted several inches off the ground to avoid obstacles, or can be lifted by the user leaning back. Advantageously, the power add-on device can be detached from the manual wheelchair and loaded into the trunk of a car when travelling or may be checked in as baggage when flying.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: April 30, 2013
    Inventor: Patrick Tallino
  • Patent number: 8267206
    Abstract: A patient support including a traction device for powered movement of the patient support.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 18, 2012
    Assignee: Hill-Rom Services, Inc.
    Inventors: John David Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf, David P. Lubbers, Ronald P. Kappeler, Bradley T. Wilson, Darrell L. Metz, Doug K. Smith, Jeffrey A. Ruschke, John Vodzak, Terry J. Stratman, Eric W. Oberhaus
  • Patent number: 8051931
    Abstract: A patient support including a traction device for powered movement of the patient support.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: November 8, 2011
    Assignee: Hill-Rom Services, Inc.
    Inventors: John David Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf, David P. Lubbers, Ronald P. Kappeler, Bradley T. Wilson, Darrell L. Metz, Doug K. Smith, Jeffrey A. Ruschke, John Vodzak, Terry J. Stratman, Eric W. Oberhaus
  • Publication number: 20110209931
    Abstract: A power assist apparatus for powering a manual wheelchair may include one or more wheels, one or more motors that drives the one or more wheels, a remote operable to control the one or more motors, and a connector operable to attach to the manual wheelchair. The power assist apparatus may be quickly and easily attached to, and removed from a manual wheelchair.
    Type: Application
    Filed: September 22, 2010
    Publication date: September 1, 2011
    Inventors: Franklin Brent Butts, John David Gowen
  • Patent number: 7997361
    Abstract: A reverse drive mechanism is configured to rotate at least one wheel of a multi-wheeled device in a reverse direction so that the device moves in that reverse direction. One particular application involves a motorcycle conversion assembly in which at least one of the rear wheels of the conversion assembly is driven in the reverse direction so as to back-up the motorcycle.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: August 16, 2011
    Inventors: David Anthony Bell, LaNell Easley Bell
  • Patent number: 7905304
    Abstract: An automatic guided vehicle drive device includes a top plate member, a drive unit, a holding plate member and a turning shaft mechanism. The drive unit has left and right wheel axles attached to left and right wheels, respectively. The holding plate member is coupled between the top plate member and the drive unit to pivotally hold the drive unit with respect to a movement direction. The turning shaft mechanism is coupled between the top plate member and the holding plate member to turnably support the drive unit about a vertical line passing through an intersection between an axial centerline of the wheel axles and a middle line oriented in the movement direction and passes through an approximate middle position between the wheel axles while exerting a force along the vertical line in a direction of separating the drive unit from the top plate member via the holding plate member.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: March 15, 2011
    Assignee: Aichikikai Techno System Co., Ltd.
    Inventor: Ryuji Adachi
  • Patent number: 7900734
    Abstract: A rider lift truck with a drive portion, in which is arranged a travelling drive featuring at least one electric travelling motor for at least one steered driving wheel, with a steering device for the driving wheel, a load portion featuring a mast, an electric control unit for the travelling drive and operational controls for the travelling drive and the steering device and with a standing platform, wherein a horizontally arranged travelling motor is provided below the flatly built standing platform as a wheel hub drive for the driving wheel, and a steering motor is arranged below the standing platform alongside to the travelling motor, which is coupled with a fifth wheel for the driving wheel via a steering gear.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: March 8, 2011
    Assignee: Jungheinrich Aktiengesellschaft
    Inventors: Andreas Knie, Ernst-Peter Magens, Frank Maenken, Christoph Weber
  • Publication number: 20100300777
    Abstract: A power add-on device for powering a manual wheelchair includes a motorized component including dual electric motors and a power source electrically coupled to the electric motors, wherein each of the motors is configured to turn a respective one of a set of drive wheels. The power add-on device includes a latching mechanism adapted to attach the power add-on device to the camber tube of the manual wheelchair; and a controller, reachable by a person sitting in the manual wheelchair, that controls the latching mechanism, the motors, and a swing arm that allows the rear wheels of the manual wheelchair to be lifted off the ground. The front wheels of the manual wheelchair are allowed to be lifted several inches off the ground to avoid obstacles, or can be lifted by the user leaning back. Advantageously, the power add-on device can be detached from the manual wheelchair and loaded into the trunk of a car when travelling or may be checked in as baggage when flying.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Applicant: BEACH MOBILITY, INC.
    Inventor: Patrick Tallino
  • Patent number: 7828092
    Abstract: A patient support including a traction device for powered movement of the patient support. The traction device includes a storage position and a use position.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: November 9, 2010
    Assignee: Hill-Rom Services, Inc.
    Inventors: John David Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf, David P. Lubbers, Ronald P. Kappeler, Bradley T. Wilson, Darrell L. Metz, Doug K. Smith, Jeffrey A. Ruschke, John Vodzak, Terry J. Stratman, Eric W. Oberhaus
  • Publication number: 20100252339
    Abstract: An auxiliary drive device is disclosed that connects to a motorised vehicle to supplement the drive of the motorised vehicle depending on the speed and acceleration of the motorised vehicle by using stored energy. The auxiliary drive device obtains energy by regenerative braking when the motorised vehicle decelerates, extracting energy from the motorised vehicle by using hybrid through the road, and by recharging from the power grid. The auxiliary drive device uses the stored energy to supplement the drive of the motorised vehicle depending on the motorised vehicle speed, acceleration, drive cycle, the amount of energy stored, and if the motorised vehicle is towing a load. A controller maximizes fuel savings and towing performance of the motorised vehicle. The controller determines when the auxiliary drive device needs to provide the mortised vehicle with power assistance, resistance via braking and when to conserve the stored energy for later use.
    Type: Application
    Filed: November 7, 2008
    Publication date: October 7, 2010
    Inventors: Eric Bibeau, Reza Ghorbani
  • Publication number: 20100180380
    Abstract: The invention relates to a drive system for driving movement of a patient support device across a floor, comprising a base having a front side facing the patient support device, first and second drive wheels arranged on said base said wheels being rotatable around first and second respective wheel axles substantially parallel to the floor and rotatable around first and second respective swivel axles substantially perpendicular to the floor, wherein the first and second swivel axles are spaced apart from each other when projected onto the front side and arranged at fixed positions on the base, wherein the drive wheels are rotatable around their swivel axles between a first orientation for forward movement, and a second orientation for transverse movement, wherein in the second orientation the first and second drive wheels are positioned at substantially different distances from the front side of the base.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 22, 2010
    Inventors: Mattheas Robertus VAN SCHEPPINGEN, Joost Anton Roes
  • Patent number: 7721835
    Abstract: A wheel with a self-contained drive mechanism is provided to propel (or assist in propulsion of) bicycles, tricycles, and similar vehicles. The wheel preferably takes the form of a shock absorbing detachable wheel, which is readily received within the dropouts of a bicycle frame or fork to be attached therein by a standard quick-release mechanism. Thus, the wheel may be added to (or removed from) preexisting standard bicycles and the like.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: May 25, 2010
    Inventor: Jeffrey L. Radtke
  • Patent number: 7694991
    Abstract: The present invention provides a kit for attaching a manually operated wheelchair to a motorized scooter having a seating apparatus and supporting structure and a floor, comprising: (a) a motorized scooter attachment angle iron, wherein the angle iron comprises: (i) a vertical wall; and (ii) a horizontal wall, the horizontal wall forming approximately a right angle to the vertical wall, wherein the horizontal wall has at least two embedded elongated slots; (b) an angle iron attachment adjustable bar, wherein the adjustable bar comprises (i) a left elbow shaped tubular segment having a horizontally oriented bottom end and a vertically oriented top end; (ii) a right elbow shaped tubular segment having a horizontally oriented bottom end and a vertically oriented top end; and (iii) a straight middle tubular segment having a diameter larger than the left segment and the right segment, so as to permit the left segment to insert into a left end of the middle tubular segment and so as to permit the right segment to i
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: April 13, 2010
    Inventors: Daniel Mills, Larry Mills
  • Publication number: 20100078232
    Abstract: An automatic guided vehicle drive device includes a top plate member, a drive unit, a holding plate member and a turning shaft mechanism. The drive unit has left and right wheel axles attached to left and right wheels, respectively. The holding plate member is coupled between the top plate member and the drive unit to pivotally hold the drive unit with respect to a movement direction. The turning shaft mechanism is coupled between the top plate member and the holding plate member to turnably support the drive unit about a vertical line passing through an intersection between an axial centerline of the wheel axles and a middle line oriented in the movement direction and passes through an approximate middle position between the wheel axles while exerting a force along the vertical line in a direction of separating the drive unit from the top plate member via the holding plate member.
    Type: Application
    Filed: March 18, 2009
    Publication date: April 1, 2010
    Applicant: AICHIKIKAI TECHNO SYSTEM CO., LTD.
    Inventor: Ryuji ADACHI
  • Publication number: 20100012400
    Abstract: A wheelchair having torsion-acting shock absorbers from which cantilevered swing arms connected to drive wheels are connected is disclosed. The wheelchair incorporates a compact, collapsible power scooter that attaches to the wheelchair and presents a pair of handlebars having an accelerator and a brake, thus enabling the rider to propel him or herself by a power drive train rather than by hand.
    Type: Application
    Filed: May 6, 2009
    Publication date: January 21, 2010
    Inventors: Steven J Patmont, Gabriel S. Petmont, Trevor Snowden
  • Patent number: 7621356
    Abstract: A powered, directionally steerable trailer jack that can be used to elevate and lower a trailer tongue and having a caster wheel assembly affixed to a lower end of the jack. The caster wheel assembly includes a shroud having the wheels' axle journaled for rotation at a lower end thereof along with a pair of shafts also journaled for rotation in the shroud and oriented parallel to the axle. A chain and sprocket arrangement provides a low-speed, high torque transmission between one of the shafts and the axle and a high-speed, low torque transmission between the other of the shafts and the axle. The trailer jack assembly can be tilted out of its vertical disposition to provide adequate clearance when the trailer is being pulled over uneven road surfaces. The power for driving the wheels may be provided manually by means of a crank for turning one or the other of the shafts or by an electric motor coupled one of the shafts.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: November 24, 2009
    Inventor: Craig D. Quarberg
  • Patent number: 7617890
    Abstract: A steering mechanism for a wheel of a self-propelled vehicle includes a wheel spindle on which the wheel is rotatably mounted, a steering motor turning a steering tube defining a generally vertical steer axis, a propulsion drive motor turning a propulsion drive shaft extending through the steering tube, and a plurality of gears providing a gear reduction ratio between the propulsion drive motor and the wheel. The wheel is offset from the steer axis and rotates on the wheel spindle if the steering motor turns the steering tube while the propulsion drive shaft is stationary.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: November 17, 2009
    Assignee: Deere & Company
    Inventor: Bernard Edwin Romig
  • Patent number: 7549502
    Abstract: A steering apparatus for steering wheels (1) of a vehicle (2) comprises support means (4) arranged for supporting said wheels (1), driving means (27) arranged for rotating said support means (4) around respective longitudinal axis means (Z) and connecting means arranged for connecting said driving means (27) with said support means (4), said connecting means comprising transmission gear means (26); a vehicle comprises steered wheel means (1) and steering means (3) arranged for controlling said steered wheel means (1), said steering means (3) comprising support means (4) arranged for supporting said steered wheel means (1), driving means (27) arranged for rotating said support means (4) around respective longitudinal axis means (Z) and connecting means arranged for connecting said driving means (27) with said support means (4) , said connecting means comprising transmission gear means (26).
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: June 23, 2009
    Inventor: Angelo Gaetani
  • Patent number: 7438144
    Abstract: For power purposes, an electrically-powered autonomous vehicle requires a mass and/or a significant volume of batteries, the batteries being supported by an independent chassis (4). The independent chassis is designed to be received in a housing (3) which is defined under the chassis of the vehicle and which is provided with at least one wheel (5)-equipped axle. Each of the chassis includes a connection interface, each including the complementary male and female parts of at least one centering member (15) and of at least one socket member (16). The vehicle chassis-side interface has a plate (10) which is independent of the chassis and which is connected to same at least three points, namely: two points which are controlled by jacks (12) and a third point which takes the form of a ball joint.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: October 21, 2008
    Assignee: R&D Industries
    Inventors: Richard Chene, Dominique Delamour, Olivier Rodi
  • Patent number: 7338061
    Abstract: The present invention provides a critical breakthrough in wheeled vehicle concepts, by enabling stable vehicle operations, where wheelbase configuration varies in relation to the need for roll preventing force. This enables a new form of automobile that is especially suited for electric adaptation. The invention is an articulated vehicle that includes a stabilizer part and a carriage part where the two parts are linked by a two axis joint that locks the parts together in regard to relative roll motion, but allows pitch attitude and yaw attitude of each part to be mutually independent. Such a joint allows wheels to maintain firm contact with road surfaces while liking to cause the carriage to follow the stabilizer, and enables roll stabiliztion effects. In a turn condition, the stabilizer extends a wheel toward the outside of the turn such that upward force on that wheel counters roll torque that occurs due to radial acceleration due to the turning radius and speed of the vehicle.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: March 4, 2008
    Inventor: James K. Bullis
  • Patent number: 7311161
    Abstract: A hospital bed includes a carrier frame, a driven wheel unit disposed below the frame, a motor unit, a drive wheel unit disposed below the frame and coupled operably to the motor unit in such a manner that actuation of the motor unit results in rotation of the drive wheel unit. A lifting-and-lowering device interconnects the frame and the drive wheel unit for lowering and lifting the drive wheel unit with respect to the driven wheel unit between an upper position, in which, the drive wheel unit is disposed at an elevation above the driven wheel unit, and a lower position, in which lower surfaces of the driven and drive wheel units are flush with each other.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: December 25, 2007
    Inventor: Pao-Ling Lee
  • Patent number: 7306250
    Abstract: A method of attaching a manually operated wheelchair to a motorized scooter using an angle iron, an adjustable bar that has a left segment, a middle segment, a right segment and a pair of adapters. A user slides the middle segment over the left and right segments, and inserts screws into left and right holes in the middle segment and aligned holes in the left and right segments. The user then screws the adapters onto upper ends of the left and right segments and snaps them into position on the underside of the wheelchair. Next, the user removes the seating apparatus from the scooter, fastens the angle iron to the floor of the scooter by inserting a pair of bolts through the slots in the angle iron and tightening the bolts with a pair of matching nuts, and places the bar squarely against the angle iron.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: December 11, 2007
    Inventor: Daniel Mills
  • Patent number: 7198122
    Abstract: A device for transporting strollers includes a base member having a plurality of compartments, a plurality of wheels for supporting the base member wherein two such wheels are mounted adjacent the rear portion and another wheel is pivotally mounted to the base member. A plurality of elongated straps are secured to the top surface and to a stroller positioned thereon respectively. The device further includes a mechanism for rotating at least two of the plurality of wheels and a hand-operable remote control unit for selectively transmitting RF signals to the rotating mechanism. The rotating mechanism includes a plurality of motors, at least one power source disposed within select ones of the plurality of compartments, a receiver for receiving the RF signals generated from the remote control, and a microprocessor electrically coupled to the receiver.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: April 3, 2007
    Inventor: Stephen E. Smith
  • Patent number: 6860347
    Abstract: An electric drive attachment for a wheelchair comprising a drive housing containing an electric motor, a drive wheel which touches the ground and drives the wheelchair through frictional contact with the ground and speed reducing mechanism between the motor and drive wheel, attachment structure to attach the wheelchair drive unit to the wheelchair as a pair of clamps one on each side of the frame. Also included are torque dampening systems to reduce the shock of starting the motor, a clutch which enables manual forward movement of a wheelchair without engagement of the motor and without dragging of the drive wheel, an under run wheel and positive pressurization of the gear works and area surrounding the drive wheel to keep the housing free of debris.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 1, 2005
    Assignee: Daka Research Inc.
    Inventors: Clive Marles Sinclair, Alexander Joseph Kalogroulis
  • Publication number: 20040134691
    Abstract: In a ventilation system of a motor vehicle, a film valve can selectively open and close an air path opening defined by a housing with a rib or projection that encircles such opening. The rib can define a point contact between the film valve and the housing when viewed in cross-section. The rib geometry can include substantially straight edges in cross-section and/or can include arcuate edges. Different geometry can define the rib at different cross-sections. The point contact defined between the rib and the film valve substantially reduces noise generated when the film valve moves relative to the rib, especially when the film valve has been subjected to a harsh environment.
    Type: Application
    Filed: December 3, 2003
    Publication date: July 15, 2004
    Inventors: Gerald M. Goupil, Mark W. Stevenson
  • Patent number: 6481514
    Abstract: To improve convenience of a wheelchair by enabling an outside fitting type of auxiliary power device to be automatically and securely mounted on and removed from the habituated wheelchair, the auxiliary power device, which can be mounted on and removed from the wheelchair and provide power assistance to the wheelchair, comprises photoelectric sensors for detecting positions of predetermined frames of the wheelchair, arms, each having a handle of a shape capable of being engaged with the frames attached to an outer end thereof, and driving motors for displacing the arms. When the frames are determined to be at predetermined positions based on information from the photoelectric sensors, the arms are displaced by the driving motors so as to have the handles engage with the frames.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: November 19, 2002
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Yoshihiro Takada
  • Patent number: 6419565
    Abstract: A rotary floor finisher for use with a power rider trailer for the sanding and screening of large wood floor areas. The floor finisher and sander to attached in substantially rigid relationship to each other and steered by a wheel provided on the floor finisher.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: July 16, 2002
    Assignee: Floor Style Products INC
    Inventors: Bryan Mattson, Michael T. Powers
  • Patent number: 6260646
    Abstract: A pallet truck for manually transporting loaded pallets is provided with a momentary locomotion means that assists an operator in starting a load moving from a state of rest. The locomotion subsystem is of suitable weight and size to allow the power-assisted pallet truck to be manually operated, and to allow for use of the pallet truck in similar space constraints as manual pallet trucks. In an enhanced embodiment, a governor switch is provided which disables the power-assistance after the load has been accelerated to walking speed in order to protect the motor from use as a full-time locomotion means.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: July 17, 2001
    Inventors: Raul U. Fernandez, Daniel C. Mullock
  • Patent number: 6209670
    Abstract: A clutch for altering the direction of a drive unit of a transportation device between a first direction of travel and a second direction of travel, the drive unit having at least one drive wheel connected to a shaft, the shaft being rotatably mounted with respect to the transportation device between at least a first position, corresponding to the first direction of travel, and a second position, corresponding to the second direction of travel, the clutch comprises a housing to receive a portion of the shaft, a lock having a first preset locked position corresponding to the first direction of travel and a second preset locked position corresponding to the second direction of travel and, a connecting member connected to the shaft and the lock for alternately locking the shaft in one of the directions of travel.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: April 3, 2001
    Assignee: Sunnybrook & Women's College Health Science Centre
    Inventors: Geoffrey R. Fernie, Gerald T. Griggs
  • Patent number: 6202775
    Abstract: A rotary floor finisher for use with a power rider trailer for the sanding and screening of large wood floor areas. The floor finisher and sander to attached in substantially rigid relationship to each other and steered by a wheel provided on the floor finisher.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: March 20, 2001
    Assignee: Floorstyle Products, Inc.
    Inventors: Bryan Mattson, Michael T. Powers
  • Patent number: 6145611
    Abstract: A computerizable robotic automated bogie is provided including a drive motor and a main drive shaft extending downwardly from the drive motor. A rotatable plate is rotatably coupled to a bottom of a platform and further rotatable with respect to the main drive shaft. A gear mechanism is operatively coupled to the drive shaft. At least one wheel has an axis coupled with the gear mechanism thereby effecting rotation of the at least one wheel about a horizontal axis upon the actuation of the drive motor. The axis about which the at least one wheel rotates is fixed with respect to the rotatable plate. Further included is a rotating mechanism operatively engaged with the rotatable plate for selectively rotating the horizontal axis about which the at least one wheel resides.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: November 14, 2000
    Inventor: Albert G. Haddad, Sr.
  • Patent number: 6089604
    Abstract: A wheeled chassis including at least one traction bar pivotable about a horizontal axis between a substantially vertical position and a substantially horizontal, towing position, and two spaced from each other axle elements for supporting each pair of freely rotatable wheels, a driving wheel supported on the chassis, and a device for steering the driving wheel about an upright-extending axes, with the wheels supported by one of the two axle elements pivoting about vertical axes, with the pivotal wheels forming apexes of corners of an imaginary rectangular frame and with the driving wheel being located inside of the imaginary rectangular frame adjacent to a longitudinal side of the frame in an offset relationship with respect to a vertical longitudinal central plane of the chassis, while the pivotal freely rotatable wheels located in a trailing relationship with respect to the driving wheel in to a towing direction of the chassis.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: July 18, 2000
    Inventor: Anton Kahlbacher
  • Patent number: 5937959
    Abstract: A conveyance apparatus, and more particularly, an improvement of a transfer aid mechanism which allows a patient to be transferred from a bed to a wheelchair, for example, is disclosed. The transfer aid mechanism according to the invention includes casters disposed at four locations on a frame, and a drive mechanism which is elevatable with respect to the frame. When required, the drive mechanism is lowered to bring its drive wheel into contact with a floor, and when the drive wheel is driven for rotation under this condition, the transfer aid mechanism may be moved back and forth by utilizing the drive wheel alone. Accordingly, a travelling movement of the transfer aid mechanism is facilitated if there is a carpet laid over the floor or there is a step in the floor.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: August 17, 1999
    Inventors: Naoto Fujii, Masayoshi Ito, Tsutomu Hara, Kazuharu Seki
  • Patent number: 5826670
    Abstract: A detachable propulsive device for a wheelchair includes a longitudinal skeleton frame, a driving unit attached to the front of the skeleton frame, a handle for steering the propulsive device, dimensions adjusting unit, and auxiliary wheels. The dimensions adjusting unit carries four retaining clips and allows to adjust distances between these clips lengthwise and widthwise, so that the clips are capable of engaging and holding side members of the bottom frame of the wheelchair of any desired length and width. The length adjusting mechanism of the dimensions adjusting unit includes a system of telescopically movable hollow tubes with U-shaped cross sliding rails secured to them, while the width adjusting mechanism includes sliding arms carrying the retaining clips on their outer ends and sliding longitudinally along the U-shaped cross sliding rails in the lateral direction. The auxiliary wheels at the rear of the propulsive device are lifted from the ground once the device has been attached to the wheelchair.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: October 27, 1998
    Inventor: Huang Shun Nan
  • Patent number: 5445236
    Abstract: In a vehicle combination, a traction vehicle which can be used independently of the combination, is rigidly connected with a trailer vehicle. The rear wheels of the traction vehicle can be lifted from the road when the combination is coupled, the wheels of the traction vehicle being located at the ends of link rods pivoting about an axis and the link rods are connected with a pivoting driving system capable both of lifting the wheels from the road and providing a high quality rolling structure for the traction vehicle.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: August 29, 1995
    Assignees: Sieghart Kuhn, Bernhard Hotzel
    Inventor: Sieghart Kuhn
  • Patent number: 5358065
    Abstract: A vehicle is provided with a number of retractable supporting wheels. When this vehicle is coupled to a load, the supporting wheels can be lifted off the ground so that a very easily controllable assembly is produced. Through the correct selection of the position of the center of gravity, the wheel pressure on the drive wheels is as great as possible. Due to the fact that the supporting wheels can be raised independently, coupling with a load is facilitated.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: October 25, 1994
    Assignee: N.C.H. Hydraulische Systemen B.V.
    Inventor: Derk Nijenhuis
  • Patent number: 5259471
    Abstract: A trailer dolly arranged for receiving a trailer hitch thereto to permit ease and mobility of a trailer. A support platform includes a forward wheel pivotally mounted relative to the platform, with a plurality of rear wheels, with at least one of the wheels in operative communication with a drive motor. A trailer hitch ball is mounted projecting upwardly of the support platform to receive a trailer hitch thereon. A modification of the invention includes the trailer hitch ball mounted within a cylinder, with a piston reciprocatably mounted within the cylinder mounting the ball at its upper distal end to permit lifting of a trailer as required for its mobility about a support surface.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: November 9, 1993
    Inventors: Robert J. Taylor, Judy L. Taylor, Donald L. Price, Linda S. Price
  • Patent number: 5131714
    Abstract: A general delivery load carrying vehicle comprising a unitized load and stress bearing monocoque body and a front wheel drive engine unit. The body comprises a base floor, side walls and a top wall or roof structurally interconnected to support the vertical and torsional forces on the vehicle. The base floor has a length sufficient to provide a cab area and a load carrying area. The base floor is such as to provide a floor in the cab area that is at the same height throughout and at a level such that persons entering the vehicle may step into the vehicle directly in a single step without the need for additional structural steps or running boards. The side walls have openings adjacent the cab area for entrance and exit and one end wall defines structural pillars for receiving the windshield.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: July 21, 1992
    Assignee: Evans Body Works Inc.
    Inventors: Robert B. Evans, Sr., Barry E. Woodrow, Joseph H. Craven
  • Patent number: 4848831
    Abstract: Recreational vehicles such a motor homes are either self-contained or consist of a cab-type drive unit with a fifth wheel connection for the motor home component. The present device comprises a motor home unit and a self-contained van unit with the units being close-coupled together as one rigid assembly. Full access is provided when connected between the van and the motor home and the van is readily detached and can be used as a self-contained separate vehicle for travelling towing a boat or the like. Connection is by detachable connecting the front ends of the longitudinal chassis members of the motor home unit to the rear ends of the longitudinal chassis members of the van and the van is a front wheel drive unit with steerable front wheels and selectively steerable rear wheels.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: July 18, 1989
    Assignee: Continental Coach Ltd.
    Inventor: John M. Buday
  • Patent number: RE47554
    Abstract: A system for controlling the acceleration, deceleration, braking, travel speed, and power assisted steering of a pallet truck, comprising setting a steering system and a traction system performance as a function of a position and rate of change of position of a control arm in a vertical axis and a horizontal axis of rotation.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: August 6, 2019
    Assignee: HYSTER-YALE GROUP INC.
    Inventor: Timothy L. Rose