Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 8162108 | Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead The elevator has a car movable vertically within a shaft between lower and upper end positions and a drive system coupled to a traction system for controlling movement of the car. A limit switch which is open when the car is in a selected distance range from one of ... | 04/24/2012 |
| 7628251 | Elevator installation with a linear drive system An elevator installation has an elevator car and a permanent magnet linear drive system with a stationary part and a movable part, which moves along the stationary part when the permanent magnet linear drive system is controlled in a drive mode. The elevator car is ... | 12/08/2009 |
| 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 |
| 7374020 | Energy efficient elevator system The invention is directed to an apparatus and methods for enhancing the energy efficiency of a variable speed drive (VSD) used to control an elevator by disconnecting the VSD from the AC power supply grid when the elevator is idle and reconnecting the VSD when the e... | 05/20/2008 |
| 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 |
| 7250739 | Method for estimating the rotor time constant of an induction machine A method for estimating the rotor time constant (τr) of an induction machine when the stator resistance (Rs) and rotor resistance (Rr) of the induction machine are known. The method comprises the steps of feeding a DC current to the... | 07/31/2007 |
| 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 |
| 7219771 | Elevator counter weight An elevator counterweight comprises a counterweight frame constructed from several vertical beams and at least three horizontal crossbars wherein the vertical beams penetrate the horizontal crossbars and form therewith several grid fields in which weight elements ar... | 05/22/2007 |
| 7210563 | Guide for stairlift The invention relates to a guide for a lift along a staircase, comprising an elongate profile with at least one edge thereon, which edge extends along a considerable part of the length of the profile, wherein the edge of the profile is serrated and forms a gear rack... | 05/01/2007 |
| 7211985 | Training device On a training device, in particular for developing human muscles, having a torque-generating unit which comprises an electric motor and a reduction gearing, and whose output interacts with at least one training element offered to the exercising person, an electric m... | 05/01/2007 |
| 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 |
| 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 |
| 7128190 | Zonally operated elevator installation and method for control thereof A method for controlling a zonally operated elevator installation, wherein on a changeover floor changing between zones is made possible, and wherein with a delivering elevator group and a collecting elevator group transportation to and from the changeover floor is ... | 10/31/2006 |
| 7117980 | Method and apparatus for controlling an elevator installation with zoning and an interchange floor An elevator installation control method with zoning provides changes between zones at an interchange floor. Transportation to or from the interchange floor is by at least one feeder-elevator group and at least one connecting-elevator group. The feeder-elevator group... | 10/10/2006 |
| 7116541 | Method and apparatus for reducing the switching noise of an electromagnetic switching device In order to achieve a reduction in the switching noise during operation of an electromagnetic switching device with little complexity, a coil for moving an armature with moving switching contacts is driven in order to make contact at a first minimum value of a suppl... | 10/03/2006 |
| 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 |
| 7104363 | Power transmission system for elevator An elevator having a power feeding apparatus effective for reducing the installation space for the elevator is disclosed. The dimension of the power transmission part disposed at the hoist way and the dimension of the power receiving part mounted on the count... | 09/12/2006 |
| 7044271 | Safety device for pinching zone of elevator doors The described safety mechanism is embodied for elevator systems with an elevator car, which can be displaced in an elevator shaft. The entrances to the elevator shaft and to the elevator car each have at least one sliding door, which is automatically operable by a d... | 05/16/2006 |
| 7019421 | Modular linear electric motor with limited stator excitation zone and stator gap compensation A linear motor system including compartmentalized stator sections provides an interchangeable and serviceable alternative to other linear motors. The stator sections may be individually-energized so that power is only sent to stator sections adjacent to the thrust p... | 03/28/2006 |
| 6971482 | Elevator control device When there is a breakdown in either one of first and second power converters supplying electrical power to a multi-winding motor comprising a wind-up mechanism, a rescue operation can be safely and reliably carried out by using the remaining power converter. A wind-... | 12/06/2005 |
| 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 |
| 6949908 | Fault-tolerant electric motor control system The present invention offers a novel control system for a multiphase motor. The control system involves energization circuitry for energizing each phase winding, and a control circuit for defining phase currents for individual phases of the motor to generate control... | 09/27/2005 |
| 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 |
| 6910553 | Building elevator A building elevator with an elevator mast and an elevator car with at least one electric drive motor for the elevator car for moving the same along the elevator mast. A novel overload-prevention device for the building elevator has two drive motors with the device i... | 06/28/2005 |
| 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 |
| 6675938 | Door system including linear motor driving mechanism A door system includes a door support by which a door is movably supported, a linear motor for generating a thrust to open and close the door, a link mechanism made of a non-magnetic material for transmitting the thrust generated by the linear motor to th... | 01/13/2004 |
| 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 |
| 6513627 | Deep level mine shaft hybrid conveyance system A conveyance system is provided which includes a conveyance for conveying cargo and guide to which the convenience is displaceably mounted for guiding displacement of the conveyance. The system further includes a winding element connected via a cable to t... | 02/04/2003 |
| 6467584 | Door system including linear motor driving mechanism A door system, which uses a linear motor, has a door hanger from which a door is movably suspended, an electric motor for generating a thrust to open and close the door, and a link mechanism made of a non-magnetic material for transmitting the thrust gene... | 10/22/2002 |
| 6464042 | Strut for coupling linear drive to elevator car or counterweight A direct drive apparatus for an elevator wherein a movable part of the direct drive, particularly a linear motor, is connected with ark elevator car or counterweight for transmission of compression and tension in the travel direction by a tension/compress... | 10/15/2002 |
| 6422350 | Monitoring device for drive equipment for elevators A definite switching-off of drive equipment for elevators is accomplished with a control at an input side external of a frequency changer power unit that ascertains the presence or the absence of monitoring signals which are derived from the mains voltage... | 07/23/2002 |
| 6382361 | Elevator An elevator system in which an elevator-car and a counter weight are suspended on a pulley system in a hoistway. The elevator system includes a receiving unit for receiving an electric power from a feeding unit provided in the hoistway, an inverter for co... | 05/07/2002 |
| 6321877 | Controlling apparatus for elevator with divided control panel A control panel is divided into units in accordance with each control function, units to be controlled by or connected to the divided unit are divided into unit groups in accordance with a place where the unit is to be disposed, and unit groups having a r... | 11/27/2001 |
| 6315080 | 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... | 11/13/2001 |
| 6305501 | Elevator reluctance linear motor drive system A drive system for an elevator includes a drive machine by means of which the for moving and supporting an elevator car. The primary circuit of a linear motor is permanently fitted to a wall of a building while its secondary circuit is fitted in conjuncti... | 10/23/2001 |
| 6269911 | Elevator installation having a central control in a remote central operation center In an elevator installation system of at least one elevator installation with one or more elevators and a service center, which is functionally connected therewith, but provided spatially separate therefrom, the control device of the elevator installation... | 08/07/2001 |
| 6202794 | Procedure for adjusting air gaps between rotors and stators in an elevator drive machine The invention relates to a procedure for setting the magnitudes of the axial air gaps and/or the mutual positions of the rotors and stators defining the axial air gaps in a gearless elevator drive machine comprising an electromechanical apparatus having t... | 03/20/2001 |
| 6189657 | Linear motor for driving a lift car A linear motor for lifts for driving a lift car guided in a lift shaft with at least one stator winding row which can be fixed to the lift shaft or to the lift car and with at least one row of exciter magnets of alternating polarity which are situated opp... | 02/20/2001 |
| 6085874 | Rail-climbing elevator counterweight having flat machines An elevator system includes a counterweight assembly having a plurality of drive machines having integrally formed drive wheels adapted to frictionally engaged a guide rail for driving the counterweight assembly along the guide rail to effect movement of ... | 07/11/2000 |
