Class 187/284 - And means for final leveling

Subclass of Class 187 - Elevator, industrial lift truck, or stationary lift for vehicle
Definition: Control* having additional means which (a) begins
No. of patents: 26
Last issue date: 06/07/2011

Number	Title	Issue Date
7954603	Evacuation control apparatus for elevators including a rescue floor setting portion A building is provided with a plurality of service zones each including a plurality of floors, and elevators each assigned to the floors included in a corresponding one of the service zones as service floors. The service zones are provided such that the floors inclu...	06/07/2011
7669695	Fire evacuation operation system for group controlled elevators A fire evacuation operation system for group-controlled elevators that enables a large number of people to evacuate a building in a short time is provided. Safe elevators are provided for evacuation of the building according to the position of the floor on which the...	03/02/2010
7588124	Speed control method of elevator-purpose inverter and speed control apparatus thereof A speed control method of an elevator-purpose comprising previously calculating an elevating distance in such a case that the elevator passenger car is decelerated from a reference frequency up to a leveling frequency in a constant deceleration speed, when the induc...	09/15/2009
7377363	Elevator with variable drag for car and counterweight An elevator car and counterweight system is provided with a variable drag element. The variable drag element is controlled such that the lower of the counterweight and the car has a higher drag against further movement. In an embodiment which is particularly useful ...	05/27/2008
7360630	Elevator positioning system The present invention provides an elevator position compensation system which minimizing the re-leveling of an elevator car in an elevator shaft. The elevator car is suspended in the shaft by an elevator cable system and elevator motor, wherein the elevator position...	04/22/2008
7295108	Active RFID tag utilizing a secondary communication mode Embodiments of the present invention relate to methods and systems for radio frequency identification. According to one embodiment, a radio frequency identification system comprises a radio frequency identification tag. The tag comprises a radio frequency transmitte...	11/13/2007
7287625	Forklift safety sensor and control system A forklift safety sensor and control system for preventing unsafe wear on the bottom surface of the fork. A fork height sensor detects when the fork is below a predefined threshold height at which the bottom surface is in close proximity to the ground or is in conta...	10/30/2007
7090055	Boat lift brake apparatus A boat lift braking system includes a threaded shaft driven by the boat lift motor. A torsion tube disposed about the shaft carries an interiorly threaded nut that interengages the peripheral threads of the shaft. A rotor is mounted to the nut adjacent a brake pad t...	08/15/2006
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
6857507	Equipment for fine-positioning at least one deck of a multi-deck cage for a lift A multi-deck cage has a deck floor with a ramp drive for fine positioning. The deck floor is configured as a ramp rotatable about a rotary axle and is movable up and down by means of actuators of the ramp drive. A sensor, which locates a mark arranged at a story sil...	02/22/2005
6526368	Elevator car position sensing system A system of sensing elevator car position is presented that dynamically compensates for problems due to frictional slippage of its mechanical connection and/or building settlement. The system comprises an elevator car within an elevator hoistway. An encod...	02/25/2003
6202796	Elevator position controlling apparatus and method In a position controlling apparatus and method for an elevator which controls a position of an elevator in accordance with a velocity command profile consisting of an acceleration region, a uniform velocity region and a deceleration region, a position con...	03/20/2001
6164416	Procedure and apparatus for the deceleration of an elevator To decelerate an elevator to a floor, the position of the elevator is determined and this data is used to calculate a required deceleration value with which the speed and deceleration of the elevator are reduced to zero upon reaching the floor and the dec...	12/26/2000
6158554	Safety device for moving the lift cabin in case of fault of the main lifting system A safety device in a lift system comprising a cabin moveable along a shaft for moving the cabin in the event of a fault of the main lifting system. The safety device includes a platform located below the base of the lift cabin. Further, engagement apparat...	12/12/2000
6082498	Normal thermal stopping device with non-critical vane spacing A normal terminal stopping device (NTSD) using terminal zone position checkpoint detection with a binary coding method to identify a checkpoint within a terminal zone, and a digital shaft encoder mounted on the shaft of the hoist motor to determine a car ...	07/04/2000
6026935	Cage stop height readjusting apparatus for elevator system and method thereof A cage stop height readjusting apparatus for an elevator system and a method thereof which are capable of accurately stopping a cage at a predetermined floor at a zero level of a cage stop height. The apparatus includes a position detection rotary encoder...	02/22/2000
5893433	Elevator car position detecting apparatus An elevator car position detecting apparatus includes plates arranged at selected operation points defined along the elevator path, in such arrangement that one operation point is distinguishable from another operation point. Position detectors are provid...	04/13/1999
5869795	Elevator floor arrival correction control An elevator is provided with floor arrival correction control which monitors the elapsed time following completion of the previous floor arrival correction. If the time elapsed is less than a fixed time (102), the elevator car is controlled with a standar...	02/09/1999
5798490	Procedure and apparatus for determining the position of an elevator car A procedure for determining the position of an elevator car in which the code data contained in code units mounted in the building is read by means of a code data detector unit (4) in such manner that a code unit containing floor data and door zone data i...	08/25/1998
4886413	Loader platform interface control and stop means Interface control for controlling the altitude of two roll planes of a deck surface relative to each other and providing cooperation with a stop that precludes the lowering of one of the roll planes when a load is in position on the deck surface....	12/12/1989
4570755	Digital landing computer for elevator An electronic landing device for controlling the movement of an elevator car during the final several inches of travel approaching a floor. The device provides a smooth transition from run (deceleration) mode to landing mode within a wide range of speeds ...	02/18/1986
4501345	Elevator system An elevator system, and methods of providing certain functions thereof, wherein an up/down counter provides a count which is used to provide a landing and leveling speed pattern for the elevator car. The counter is preset to a predetermined count prior to...	02/26/1985
4337846	Elevator relevelling control apparatus An elevator relevelling control apparatus for controlling the movement of an elevator car (11) such that when the car is misaligned with the landing position of a selected landing floor, the car is restarted and brought into alignment. A traction motor (M...	07/06/1982
4304319	Automatic elevator control system An automatic elevator control system including high and low speed, up and wn, braking, emergency stop, door interlock, slack cable, overtravel, motor overload, select floor and run/stop operations. The system employs an electrically passive elevator where...	12/08/1981
4203506	Elevator control An apparatus for selecting a floor, and slowing down and leveling an elevator is described. At least one wire or rod extends vertically along the elevator shaft. The wire or rod is of a nonmagnetic material and has magnetic coatings thereon along selected...	05/20/1980
4194594	Elevator landing control apparatus An elevator landing control apparatus comprises a cage and a counter-weight which are suspended by a main rope in a hoistway; a winding motor which drives a driving sheave; a brake for holding the cage by holding the motor during the stop of the cage; a l...	03/25/1980

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Class 187/284 - And means for final leveling