Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7735609 | Controller of industrial vehicle, industrial vehicle, and control method for industrial vehicle A traveling operation detecting portion detects traveling operation and non-traveling operation selectively. The traveling operation corresponds to operator operation that involves traveling of an industrial vehicle. The non-traveling operation corresponds to operat... | 06/15/2010 |
| 7644807 | Method for detecting a configuration of a plurality of lifting devices in a lifting system The invention relates to a method for detecting a configuration of a plurality of lifting devices (12, 13) in a lifting system (11), wherein a lifting device (12, 13) is defined as a master lifting device with the node address 1, wherein ... | 01/12/2010 |
| 7500543 | Sheave with taper lock coupler A coupling arrangement for coupling a traction sheave on a motor shaft includes a taper lock bushing and a traction sheave having a tapered bore adapted to receive the taper lock bushing. The taper lock bushing is sized to slidingly engage with the motor shaft and t... | 03/10/2009 |
| 7428950 | Low overhead machine roomless elevator configuration A drive arrangement for an elevator car and a machine roomless elevator incorporates a machine (26) having a drive sheave (27) extending along an axis parallel to the axes of the deflection sheaves (23, 25) associated with both the counter-weigh... | 09/30/2008 |
| 7422089 | Drive unit for an elevator An elevator drive unit including a traction sheave supported by a shaft rotatably supported by a pair of bearings. Mounted on opposite free ends of the shaft are rotors of a pair of electric motors. Cage-housings on a pair of spaced bearing end-plates retain the sta... | 09/09/2008 |
| 7407040 | Tapered coupler for coupling a motor to a hoist machine There is disclosed a coupling arrangement for coupling a motor to a hoist machine. The coupling arrangement comprises a first drum flange comprising an outer body having a first end and a second end, and an inner wall surface defining a cavity of substantially circu... | 08/05/2008 |
| 7401685 | Elevator testing system The invention concerns a method and a system for ensuring the operation of the safety circuit of an elevator or escalator, said safety circuit containing safety contacts (10, 12, 14) connected in series with a contactor (16). In the method, the largest... | 07/22/2008 |
| 7360629 | Zonally operated elevator installation and method An elevator installation for zonal operation in a building, a method for zonal operation of such an elevator installation and method for modernization of an existing elevator installation, in which the building is divided into several zones. The elevator installatio... | 04/22/2008 |
| 7353913 | Elevator hoisting machine and motor A elevator hoisting machine is provided with a stator mounting portion at which a stator core of a motor is mounted to a surface of a side opposite to a sheave in a sheave rotation centerline direction of the hoisting machine. A hat shape fixed frame member in which... | 04/08/2008 |
| 7350883 | Detecting elevator brake and other dragging by monitoring motor current Elevator brake or other drag is checked by establishing (10-13) baseline motor currents at plural determined positions as the car is moved up and down both empty and with full load. In a normal run (21), the load is recorded (22) and the ... | 04/01/2008 |
| 7314120 | Motor control for elevator using two control signals A method and a system for controlling an elevator that does not change the torque direction, such as an elevator without counterweight. The elevator has an alternating-current electric motor (M1), such as a permanent magnet motor or an asynchronous motor, and... | 01/01/2008 |
| 7281609 | Elevator inspection safety devices An elevator car includes a cross-head portion and a balustrade mounted to the cross-head portion. The balustrade is moveable from a retracted position for normal operation of the car to a deployed position for inspection operation of the car. The car further include... | 10/16/2007 |
| 7275622 | Traction elevator back-up power system with inverter timing A back-up power system for a traction elevator includes a power sensing device to sense a power loss or irregularity of the normal control power. An inverter timing system is connected to the power loss sensing device. The inverter timing system receives a power sen... | 10/02/2007 |
| 7273133 | Elevator hoisting machine An elevator hoisting machine includes a first rotary part having a sheave, a brake-side end plate, and a brake disk integrally formed together, a second rotary part having a rotor with a permanent magnet and a motor-side end plate integrally formed together, wherein... | 09/25/2007 |
| 7261186 | Elevator with transverse flux drive An elevator, particularly for transporting passengers, has an elevator car guided in an elevator shaft a direct drive motor. The drive motor includes an active primary part at the elevator car and a passive secondary part that is fixed in the elevator shaft and is s... | 08/28/2007 |
| 7261185 | Equipment for fine positioning of a car of a multi-stage car A multi-stage elevator car has equipment for fine positioning of the cars wherein the car thresholds are positionable at the level of the floor thresholds. The fine positioning adjusting equipment operates on the principle of a double lever and moves a car frame alo... | 08/28/2007 |
| 7246688 | Elevator door system An elevator door system includes an elevator car having a front face defining a door opening. At least one elevator door is coupled to the front face of the elevator car for movement between an open position exposing the door opening and a closed position covering t... | 07/24/2007 |
| 7243759 | Tapered coupler for coupling a motor to a hoist machine There is disclosed a coupling arrangement for coupling a motor to a hoist machine. The coupling arrangement comprises a first drum flange comprising an outer body having a first end and a second end, and an inner wall surface defining a cavity of substantially circu... | 07/17/2007 |
| 7225899 | Stair lift device A stair lift for lifting and lowering at least one person on a rail on a stairway. There is a carriage mountable to the rail, the carriage having a track engaging drive, and a motor to power the drive, the powered drive causing the carriage to move along the rail. T... | 06/05/2007 |
| 7208896 | Electric jack load balancing method and device An electric jack load balancing method and device for reducing the difference in load carried by each jack of a pair of electric jacks while adjusting the attitude of a platform. The device includes a controller configured to reduce the difference in load carried by... | 04/24/2007 |
| 7198136 | Elevator device for a multi-sky-lobby system An elevator system is provided with multiple sky lobbies to reduce the space required for elevator shafts and the space required for the entire elevator system, as well as the required elevator speed and motor capacity. Sky lobbies Ls1–Lsx | 04/03/2007 |
| 7195107 | Machine having pulley coupled to rotor and partially overlying stator, elevator system including machine, and drive method A machine includes a motor that includes a stator carrying a concentrated winding wound on teeth and a rotor rotatable about the stator. The rotor includes a tubular casing and permanent magnets, and a pulley coupled to the rotor. ... | 03/27/2007 |
| 7193381 | Electric jack ground contact detection method and device An electric jack ground contact detection method and device for detecting ground contact of an electric motor-driven jack as the jack is being extended to adjust the attitude of a mobile platform. The device includes a controller that monitors the electrical power d... | 03/20/2007 |
| 7156209 | Elevator roping arrangement An elevator installation includes an elevator car located in a hoistway and having a floor, and a rear wall extending upward from the floor. A counterweight is located in the hoistway adjacent to the rear wall of the elevator car. An underslung sheave assembly is lo... | 01/02/2007 |
| 7147087 | Elevator with duct for tail cord An elevator is provided to prevent a tail cord from being projected out of a tail-cord duct under the influence of air current flowing in the tail-cord duct. The tail-cord duct is formed along an elevating space in which a passenger car moves up and down. The tail-c... | 12/12/2006 |
| 7135800 | Axial gap electronic motor An axial gap electronic motor includes a stator having a plurality of poles, and a rotor. Each pole is formed of a stator iron core made of a magnet body and a coil wound therearound. The rotor has a plurality of poles formed of permanent magnet and arranged along a... | 11/14/2006 |
| 7117978 | Dampening device for an elevator compensating cable and associated system and method A dampening device for a compensating cable operably engaged with an elevator car is provided, wherein the compensating cable includes two linear portions connected by an arcuate portion. A first guide including at least one roller member is disposed within the arcu... | 10/10/2006 |
| 7117977 | Elevator apparatus including car with suspending pulley devices on opposite sides of the car An elevator apparatus has first and second car suspending pulley devices mounted on a car. First and second counterweight suspending pulley devices are mounted on a counterweight. In the upper portion of the interior of a hoistway, there are arranged a car side retu... | 10/10/2006 |
| 7108105 | Cable lift without a machine room In a cable lift, with a single compartment or shaft (1) for housing a movable cage (2) and an apparatus (3), comprising at least one fixed winch (4) and a counterweight (5), for displacement of the cage (2), the counterweigh... | 09/19/2006 |
| 7025178 | Stabilizing system for orienting and elevating a vehicle An automatic hydraulic stabilizing system for a vehicle automatically extends jacks of the vehicle to achieve a level orientation of the vehicle in an automatic mode or a manual mode. After a level orientation is achieved, the system can be operated to further exten... | 04/11/2006 |
| 7017714 | Double deck elevator There is provided a double-deck elevator which does not cause any impacts or vibrations on each cage when adjusting the spacing in the vertical direction between upper and lower cages. Loads on an upper support beam from right and left support arms for hoisting and ... | 03/28/2006 |
| 6968925 | Elevator apparatus An elevator apparatus has an actuating device including a sheave around which a rope engaged with an ascending and descending cage is wound and a driving section for rotating the sheave. The sheave is adapted to rotate to move the rope with its rotation. The actuati... | 11/29/2005 |
| 6955245 | Elevator installation comprising a number of individually propelled cars in at least three adjacent hoistways Elevator cars move in two vertical hoistways each having at least one crossing-point to a third vertical parking hoistway arranged between the two hoistways to allow transfer of the elevator cars between adjacent ones of the hoistways. A control system and a drive m... | 10/18/2005 |
| 6945738 | Method and apparatus for safety protection of temporary roof support Embodiments of the present invention are directed to a method and apparatus for safety protection control of temporary roof support. In one embodiment, a temporary roof support has a load sensing member. In another embodiment, a beam structure of temporary roof supp... | 09/20/2005 |
| 6942066 | Elevator apparatus A height of a case body (54) for covering an actuating device (1) is so designed as to be lower than a height of an operator. The actuating device (1) and the case body (54) will not largely project from a rooftop (50) of the build... | 09/13/2005 |
| 6763916 | Method and apparatus for synchronizing a vehicle lift A vehicle lift control maintains multiple points of a lift system within the same horizontal plane during vertical movement of the lift engagement structure by synchronizing the movement thereof. A vertical trajectory is compared to actual positions to generate a ra... | 07/20/2004 |
| 6715587 | Load carrying means for cable elevators with integrated load measuring equipment A load carrying and measuring apparatus for cable elevators includes a support construction attached to an underside of a base frame or a carrier frame for an elevator car and a pair of cable rollers attached below the support construction for engaging a support cab... | 04/06/2004 |
| 6681898 | Coupling arrangement for coupling a motor to a hoist machine A coupling arrangement for coupling a motor to a hoist machine comprises a first drum flange having an inner surface and an outer surface opposite the inner surface for coupling to a hoist machine to reduce vibrations. The drum flange has a central cavity... | 01/27/2004 |
| 6595330 | Work platform control system for a boom-type vehicle A vehicle, such as an extendible boom forklift, that includes a personnel work platform (PWP). The personnel work platform includes a shut-off switch that is connected to the electronic controls for the extendible boom forklift. The operational controls o... | 07/22/2003 |
| 6578674 | Converter arrangement for modular motor A bracket assembly and method for coupling a motor to a hoist machine comprising an adapter plate for coupling to a motor face and sized to cover the face of the motor and accommodate an existing motor register on the hoist machine, a drum flange member c... | 06/17/2003 |
