Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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 |
| 8132653 | Controlling elevator door orientation during door movement An elevator door assembly (20) includes a positioner (30) for controlling an orientation of an elevator door panel (22) during movement between open and closed positions. The positioner (30) biases the door in a direction generally perpen... | 03/13/2012 |
| 7992688 | Door device for an elevator A door device for an elevator includes an elevator door, first and second door drive devices having first and second rotating shafts, respectively, a power transmission mechanism that moves the elevator door according to rotation of the first and second rotating sha... | 08/09/2011 |
| 7992687 | Device for elevator door control based on a detected object A door device for an elevator is provided with an elevator door for opening/closing a doorway through which an interior of a car communicates with a landing, a distance sensor for continuously detecting a distance from the doorway to a passenger at the landing, a pr... | 08/09/2011 |
| 7946392 | Drive for an elevator door with a displacement curve adapted to the air flows in the shaft A method of operating an elevator installation and the elevator installation include elevator doors actuated by an elevator drive according to a travel curve. At least one sensor unit detects pressure relationships and/or air flows. An evaluating unit determines a t... | 05/24/2011 |
| 7886877 | Door device for elevator A car door is displaced with respect to a landing door between an engagement position at which the car door is engaged with the landing door and an open-away position located on a door-closing side with respect to the engagement position. While remaining engaged wit... | 02/15/2011 |
| 7650970 | Elevator door lock sensor device including proximity sensor elements in a selected geometric pattern An elevator door lock assembly (30) includes a sensor device (40) for providing an indication of a properly locked door. A plurality of proximity sensor elements (42, 44) interact with activating elements (52, 54) when the door lock assem... | 01/26/2010 |
| 7644808 | Door device of elevator In an elevator door apparatus, an elevator door is capable of reciprocating between a door closure position for closing an elevator entrance and a door open position for opening the elevator entrance. The elevator door is driven by a door drive device. The door driv... | 01/12/2010 |
| 7641024 | Operating residential elevator An elevator for transporting a person between two floors of a building includes at least one carriage and a lifting system. The elevator includes a control system and door sensors detecting the opening and closing of doors covering a hoist way. The control system de... | 01/05/2010 |
| 7637355 | Elevator arrangement The method of the invention can be used to improve the performance of an elevator system. In the method, the acceleration and/or velocity of at least one door in the elevator system is measured and a dynamic model of the door is created. Using the model, an estimati... | 12/29/2009 |
| 7581621 | Method and apparatus for controlling advance opening of doors in an elevator A method and an apparatus controls advance opening of doors in a double-deck elevator, in which elevator a car frame supporting the elevator cars is moved by means of a set of hoisting ropes by a hoisting machine provided with a traction sheave. When the elevator is... | 09/01/2009 |
| 7575101 | Device for detecting objects on a glass door and elevator equipped therewith A detector of foreign objects, and particularly fingers, between the doors and the contiguous walls of landing and car openings in an elevator with glass car and landing doors includes a light beam emitter and a receiver. The emitter, which is located near an openin... | 08/18/2009 |
| 7546903 | Elevator system having location devices and sensors Example embodiments relate to a method and a system for integrating electric elements of an elevator in a single module, e.g. in the door operator of the elevator, to reduce the number of components to be installed and to enable the electric elements of the elevator... | 06/16/2009 |
| 7537091 | Magnetic elevator door mover An elevator door mover device (40) includes a threaded ferromagnetic shaft (42). Magnetic movers (48) associated with doors (26) generate magnetic fields that cause the doors to move responsive to rotation of the shaft (42). In one... | 05/26/2009 |
| 7503434 | Inputting or adjusting reference positions in a door controller A door controller and a method for inputting or adjusting one or more reference positions into the door controller have the controller connected to a door drive for moving a door and utilize a pulse encoder for monitoring a position of the door and a non-volatile me... | 03/17/2009 |
| 7350624 | Safety system for an elevator structure Safety system of an elevator installation, with a control unit, a bus node, a safety element and a bus, which enables a communication between the control unit and the bus node. The bus node includes a first switching arrangement, which on digital presetting by the c... | 04/01/2008 |
| 7350625 | Shaft door monitoring system for an elevator installation A shaft monitoring system for an elevator installation includes a contactless sensor enabling recognition from the elevator car whether a shaft door lock and a shaft door leaf are in a correct locked setting. A securing device mechanically secures the shaft door loc... | 04/01/2008 |
| 7350623 | Elevator door apparatus An elevator door apparatus includes an engaging device which engages car doors with hall doors. The engaging device uses a spring unit to urge a movable vane provided in each of the car doors. While the doors are moving, engaging rollers supported by the hall doors ... | 04/01/2008 |
| 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 |
| 7255203 | Clutch for coupling a car door of an elevator car with a landing door of an elevator system A clutch couples a car door of an elevator car with a landing door of an elevator system, wherein the car door is movable with respect to the elevator car by a first actuator. The clutch includes at least one coupling element and a second actuator. The coupling elem... | 08/14/2007 |
| 7252180 | Situation-dependent reaction in the case of a fault in the region of a door of an elevator system An elevator system includes an elevator car having a car door, a drive unit for moving the elevator car along an elevator shaft wall provided with shaft doors and a controller for controlling movement of the elevator car along the elevator shaft wall. A separate fau... | 08/07/2007 |
| 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 |
| 7243760 | Elevator door unit having mechanism to release lock unit manually in emergency An elevator door unit includes cage doors, a cage door lock unit, hall doors, and a lock release unit. The cage doors are provided in a cage which moves in a shaft. The cage door lock unit limits and locks the opening width of the cage doors to the width not to perm... | 07/17/2007 |
| 7237655 | Elevator system and method for preventing unauthorized hoistway access An arrangement and method for preventing unauthorized access of personnel into the hoistway of an elevator system. The arrangement includes a security device for mounting in the vicinity of an auxiliary release mechanism of a landing door to prevent actuation of the... | 07/03/2007 |
| 7221116 | Motor control apparatus In an automatic transmission position control by a motor, it is determined whether the present instant belongs to a starting period, that is, the present instant is immediately after resetting of a control unit or application of power to it. If it is the starting pe... | 05/22/2007 |
| 7211974 | Motor and drive control system thereof Provided is a motor having a magnetic polar unit in which a permanent magnetic polar array having arranged therein alternately a plurality of permanent magnetic polar elements in alternate opposite poles is made to face a plurality of electromagnetic coil arrays alt... | 05/01/2007 |
| 7202615 | Tubular linear synchronous motor control for elevator doors An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of ... | 04/10/2007 |
| 7187150 | Automatic gate operator A barrier movement operator is having a position sensor in a telescoping barrier control arm is described. A controller, remote from the arm, senses the barrier position to identify limits of barrier travel and to control rate of travel of the barrier between limits... | 03/06/2007 |
| 7178635 | Elevator control having independent safety circuits An elevator installation with at least one shaft having a plurality of shaft doors is provided. At least two cars disposed one above the other travel up and down in the shaft. Each car has at least one car door. A safety device is provided for blocking the travel of... | 02/20/2007 |
| 7178638 | Car door apparatus of elevator A car door apparatus of an elevator includes a pair of door panels, a door drive device, and a door-opening mechanism. The pair of door panels open and close a doorway of the car of the elevator. The door drive device drives the door panels to open and close the doo... | 02/20/2007 |
| 7165655 | Neural network detection of obstructions within and motion toward elevator doors A camera (26), with suitable illumination (such as IR) provides images to a processing card (33) which converts the images to numerical vectors and applies them to a neural network (35) which is capable of providing a door-open signal (38... | 01/23/2007 |
| 7164784 | Edge chaining using smoothly-varying stereo disparity A method links edges in stereo images into chains which correspond to physical contours in a scene. First, edges are detected in the stereo images. Edges between the stereo images are matched, such that each edge has associated stereo matches. The edges are linked i... | 01/16/2007 |
| 7156210 | Freight elevator landing door control A control system for a motorized freight elevator landing door in which all of the doors in a single line of a hoistway are controlled with one set of proximity sensors carried on the elevator car. The sensors signal a controller that operates electric motors for op... | 01/02/2007 |
| 7152713 | Door track for an elevator door system An elevator door system for an entrance opening to an elevator cab. The system includes a two-part door having an open position and a closed position. The two-part door includes a first door portion for traversing across and covering a portion of the entrance openin... | 12/26/2006 |
| 7148652 | Method and apparatus for determining and handling brake failures in open loop variable frequency drive motors A controller for a variable frequency drive monitors electrical power from a variable frequency drive motor while a brake is maintaining a load driven or moved by the motor without requiring additional feedback components of a closed loop configuration. If excess el... | 12/12/2006 |
| 7143871 | Elevator roller guide and rail assembly An elevator door assembly includes a rail and at least one roller that rolls along the rail to move a door between opened and closed positions, for example. A resilient track is provided on the rail that facilitates more efficient roller movement and increases the l... | 12/05/2006 |
| 7140469 | Three-dimensional monitoring in the area of an elevator by means of a three-dimensional sensor A device for monitoring an elevator area utilizes a three-dimensional semiconductor sensor for detecting three-dimensional image information. The sensor includes a light source that is mounted so that the elevator area to be monitored is disposed in the illuminated ... | 11/28/2006 |
| 7140470 | Safety system for monitoring the state of elevator landing doors To render the elevator landing doors fitted with an elevator control unit (5) safe, this system comprises: elevator landing door surveillance units (10), installed on each elevator landing door, to receive the state of the electrical contacts (11, 1... | 11/28/2006 |
| 7097001 | Elevator car door movement restrictor An elevator door restrictor system for preventing an elevator door from being opened unless the elevator car is near a floor landing, utilizing battery backed electronics for sensing the presence of a building landing such that the system will continue to maintain t... | 08/29/2006 |
| 7093692 | Door control device of elevator An elevator door control device includes an obstruction sensor adapted to detect an obstruction in the vicinity of any one of the vertical frames of the doorway frame and to output an obstruction detection signal, and a door control unit for controlling door opening... | 08/22/2006 |
| 7075416 | Automotive universal latch control implementation Latch control methods and systems include a latch that receives power from a motor associated with an H-bridge circuit. A sensor can be provided for monitoring the latch, wherein the sensor obtains latch feedback data from the latch. A microcontroller controls the l... | 07/11/2006 |
