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| Number | Title | Issue Date |
| 7587983 | Drive mechanism for a track mounted body A drive mechanism for a body where the body has a plurality of load bearing and track engaging wheels that allow the body to move back and forth along a track that comprises an actuator attached to the body that is manually or mechanically driven, a non-load beating... | 09/15/2009 |
| 6910425 | Trolley with tractor drive for use in curved enclosed tracks and system including the same An enclosed track system comprising an enclosed track having at least one curve and a trolley for negotiating the curve. The trolley includes an externally located drive section and a rolling section having first and second roller portions located within the track. ... | 06/28/2005 |
| 6722284 | Steering mechanism for rail guided robots in a library A steering mechanism for a track-mounted robot is provided. The steering mechanism comprises guide wheels, which are fixed to yokes that pivot around secondary drive wheels. The pivot action of the yokes allows the guide wheels to maintain full contact with the trac... | 04/20/2004 |
| 6718885 | Trolley with tractor drive for use in curved enclosed tracks and system including the same An enclosed track system comprising an enclosed track having at least one curved portion and a trolley including a rolling section having first and second roller portions located within the track and spaced from each other and an externally located drive section. Th... | 04/13/2004 |
| 6666147 | Rail mounted traversing transport A transportation system is provided that accommodates varying angles of slope along the path of its movement, while maintaining a level transportation platform without the need of mechanical leveling devices or systems. The platform may be connected to th... | 12/23/2003 |
| 6494141 | Remotely operated vehicle for inspection and intervention of a live line A vehicle for use on a live line. The vehicle is provided with three coplanar traction wheels mounted on a frame and spaced along a first longitudinal axis parallel to the live line and above therefrom. The vehicle is also provided with two movable coplan... | 12/17/2002 |
| 6418855 | Industrial truck An industrial truck (1) is driven by a friction drive (7) acting on a rail (6). For this purpose, the industrial truck (1) stands on the underlying surface by way of a front steering-roller pair (3) and a rear fixed-roller pair (5) and is kept on track by... | 07/16/2002 |
| 6386117 | Roadway/vehicle interface apparatus Apparatus for the interface of an elevated vertical roadway and vehicle wheel, for achieving greater traction than possible using vehicle weight, and for minimizing vehicle wheel oscillation against the roadway, for minimizing roadway damage associated wi... | 05/14/2002 |
| 6220174 | Guidance system with a truck guided on a rail A guidance system with a truck guided on a rail (1) has available laterally arranged guiding surfaces (2.1, 2.2) for guide rollers of the truck. A rack (4) is preferably constructed on the rail (1) such that a dividing line (6) of a gearing (5) of the rac... | 04/24/2001 |
| 6178891 | Suspension monorail with climbing trolley The invention involves a suspended trolley line, particularly an electric monorail line with at least one undercarriage movable along running rails and with a running wheel that may be driven along the rail. At least two frictional wheels are spaced from ... | 01/30/2001 |
| 6155382 | Running gear for a drive mechanism for a rail-guided displacement device A running gear (3), for a drive mechanism of a rail-guided displacement device, such as a passenger lift, comprising a base part, a drive and at least two sets of guide wheels (9), arranged behind each other, viewed in direction of travel of the running g... | 12/05/2000 |
| 6050198 | Travelling mechanism of a rail-movable lifting device A travelling mechanism for a rail-movable lifting device includes a carrier with running wheels which roll on a longitudinally extending running surface of a rail. A double lever is pivotally mounted on the carrier. A drivable friction wheel that is posit... | 04/18/2000 |
| 5964159 | Inclined or vertical lift A lift for inclined or vertical operation has a pair of guide rails that run parallel to one other, on which guide rollers run that are mounted on swivel plates so that they can swivel and contact the rails from opposite sides. At least one guide roller o... | 10/12/1999 |
| 5676189 | Motorized drapery track assembly The present invention is a motorized drapery track assembly specially adapted for use in traversing very sharp corners without derailment. The system employs a motorized carrier that is mounted upon a track and a plurality of trolleys to which a drapery i... | 10/14/1997 |
| 5666884 | Overhead vehicle having spring-biased, rail-urged lever-mounted guide wheel for electrically powered drive wheel A vehicle travels along a rail and, driven by an onboard motor. The vehicle includes an auxiliary guide wheel mounted in a floating arrangement on a component acted upon by a helical spring. A shaft on which the wheel is mounted is disposed in an elongate... | 09/16/1997 |
| 5664502 | Wheel assembly capable of maintaining engagement with a rail having an uneven portion therein Wheel assembly capable of maintaining engagement with a rail having an uneven portion therein. The wheel assembly includes a frame adapted to pivot about a pivot axis defined by the frame. At least one wheel is rotatably connected to the frame for travers... | 09/09/1997 |
| 5662045 | Locomotive for material handling train An automated material handling system including one or more train assemblies moving along a rail with each train assembly including a locomotive pulling a plurality of trolley cars. The locomotive includes a front truck adapted for movement along the rail... | 09/02/1997 |
| 5657699 | Rail gripping vehicle A combination including a track arrangement and a vehicle to be operated on the track arrangement. The track arrangement has two sets of laterally spaced apart running faces, each set including an upper running face and a lower running face. The vehicle i... | 08/19/1997 |
| 5632207 | Conveying system A conveying system is provided for moving a pallet along straight and curved paths. The conveying system includes a track on which the pallet is mounted for movement by a motor driven roller which engages a stationary shaft mounted on the track. The drive... | 05/27/1997 |
| 5595121 | Amusement ride and self-propelled vehicle therefor The present invention provides an amusement ride having a self-propelled electric powered ride vehicle capable of maximum acceleration of about 0.3 to as much as about 1.1 G's in either direction using a unique pinch wheel drive system, and including an o... | 01/21/1997 |
| 5572930 | Elevator System A lift for inclined or vertical operation has a pair of guide rails that run parallel to one other, on which guide rollers run that are mounted on swivel plates so that they can swivel and contact the rails from opposite sides. At least one guide roller o... | 11/12/1996 |
| 5507679 | Toy vehicle system and associated vehicle A toy vehicle system has a vehicle provided with a resiliently biased driven wheel. The wheel is driven by a motor and interposed gears for rotating said driven wheel. The driven wheel is in contact with a lateral side of the track. The motor and driven w... | 04/16/1996 |
| 5489017 | Tilting tray package sorting apparatus An automatic system for sorting items, such as small parcels, into groups bound for different geographical locations is described. The system includes a carriage for traveling along a track, the carriage having an adjustment feature such that it may conti... | 02/06/1996 |
| 5479862 | Overhead conveyor with supplemental wheel and rail for increasing driving traction A rail conveyor, including an I-shaped main rail, a trolley guided at the I-shaped rail and having lateral guide rollers, a running wheel rolling on the rail, a counter-wheel and an extra rail for the counter-wheel for increasing frictional engagement of ... | 01/02/1996 |
| 5461985 | Traveling trolley, in particular single-rail trolley with compact height The invention is directed to a traveling trolley, in particular a single-rail trolley having a compact height. A traveling trolley constructed in accordance with the present invention includes a supporting frame with running wheels that run on the bottom ... | 10/31/1995 |
| 5421268 | Conveying system A conveying system is provided for moving a pallet along straight and curved paths. The conveying system includes a track on which the pallet is mounted for movement by means of a motor driven roller pivotally mounted on the pallet which engages a station... | 06/06/1995 |
| 5419260 | Self-propelled overhead track-mounted moving system A self-propelled overhead track-mounted moving system includes an elongated support rail attachable to an overhead support structure, a carrier trolley mounted for undergoing movement along the support rail, an actuation unit supported on the support rail... | 05/30/1995 |
| 5415106 | Skier rope towing apparatus A portable snow skier rope towing system comprises: an endless loop of flexible tow rope; a series of pulleys supporting the endless loop of tow rope for driving about an elongated enclosed path, the elongated path having opposed extreme ends, each extrem... | 05/16/1995 |
| 5408935 | Transportation system using magnetic belt propulsion A magnet-type transportation system of a car-side primary type includes a rail of a magnetic material, fixedly laid down along a traveling track, and a power car capable of self-movement by a plurality of wheels adapted to roll over the traveling track. T... | 04/25/1995 |
| 5398617 | Overhead rail conveyor system with improved traction having elastically deforming wheel or rail portions A conveyor system for moving loads, comprises including an overhead rail (11, 211) along which run motor-driven carriages (10), each carriage having a motor-driven wheel (13, 113, 213, 313, 413, 513) resting on the upper part of the rail and a frame (12, ... | 03/21/1995 |
| 5381737 | Rail truck suspended car transit vehicles A rail truck for use in an elevated closed beam having a slot in the bottom surface for clearance of a car body support member. The passenger car body is hung beneath the beam and elevated above the ground with the trucks running inside the beam. The flan... | 01/17/1995 |
| 5351620 | Trolley conveyor system having a helically twisted track for a positionable mobile device mounted in the trolley axle Carrier system for a mobile device positionable in various directions in space, such as a directive light source, including a trolley which can move along a guide ramp. The ramp includes two helical rails turning about a given longitudinal axis, and the t... | 10/04/1994 |
| 5331900 | Overhead trolley with spring biased load dependent traction control A trolley, particularly a monorail trolley having a short structural height includes travel wheels which travel on a lower flange of a rail. The trolley further includes a lifting mechanism arranged on a support frame and a driveable friction wheel which ... | 07/26/1994 |
| 5326197 | Drive apparatus A drive apparatus that is compact in size, low in cost, allows the attaining of a high degree of accuracy as well as high-speed driving, suppresses noise, and obtains both large thrust and braking force. The present invention is able to obtain the above-m... | 07/05/1994 |
| 5323710 | Forwardly and rearwardly self-adjusting arrangement for driving a trackbound towing unit An arrangement for driving a trackbound traction unit and being self-adjusting in both the forward and rearward directions. The arrangement includes at least two drive wheels with associated transmissions, two carrier arms whose longitudinal axes substant... | 06/28/1994 |
| 5103738 | Transmission for movement along a track system A transmission for movement along a track system comprises a frame movably supported on the track system by guides mounted to the frame. At least one endless belt assembly comprising a pair of spaced endless belts engaging associated belt wheels is mounte... | 04/14/1992 |
| 5103739 | Apparatus for tracking an overhead line and automatically moving around obstacles on the line An apparatus for tracking an overhead line includes a carriage, an arm provided relatively movable on the carriage, a hook assembly provided at both end portions of the arm and for slinging the arm over the overhead line, a vertical/rotational motion shaf... | 04/14/1992 |
| 5092249 | Electric overhead trolley system with auxiliary rail and driven auxiliary wheel for traction The invention proposes an electric overhead trolley system in which a travelling gear (14) is provided with a motor-driven driving wheel (16) and at least one auxiliary wheel (30) interacting with an auxiliary track (28), at least in certain sections, whi... | 03/03/1992 |
| 5086705 | Linear positioning system The present invention is a positioning system providing precise linear and arcuate movements of the carriage along either straight or curved sections of rail comprising a pair of pivoting bogies attached to the carriage which have a pair of oppositely-dir... | 02/11/1992 |
| 5069141 | Overhead conveyor which provides increased reactive force and traction to drive wheel on ascending rail sections A freight system comprising a conveyor adapted to be driven along a monorail track. A frictional drive wheel of the conveyor engages the upper side of the track and various embodiments of reactive force creating means are positioned to engage the undersid... | 12/03/1991 |
