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| Number | Title | Issue Date |
| 7413058 | Active slide for the doors of lifts' cabins An active slide (10) for doors of lifts' cabins, comprising a linearly developing blade, vertically oriented, featuring respective ends folded according to the same angle, connected in an articulated manner with a carriage (12) connected to a driving e... | 08/19/2008 |
| 7337581 | Guide assembly for sliding doors or pivotable sliding doors of vehicles and sliding door or pivotable sliding door Guide assembly for sliding doors or pivotable sliding doors for vehicles having at least one door displaceably supported at the vehicle by means of connecting members disposed vertically above each other. The guide assembly includes: upper guide means and lower guid... | 03/04/2008 |
| 7331141 | Automatic door control apparatus The present invention provides a control apparatus for automatic sliding doors that can be used with a plurality of door brands and models. The invention includes a control box and an idler pulley mounted to the door header. Both the control box and idler pulley can... | 02/19/2008 |
| 7308973 | Door interlocking system A door panel position control mechanism for a multiple panel horizontal sliding door assembly of a freight elevator landing. The mechanism comprises a multiple node scissors linkage that is configured to be easily installed and initially adjusted and which has its p... | 12/18/2007 |
| 7264088 | Device with movable door seal for a displaceable door of an elevator installation and an elevator installation with such a device A device moves a door seal for a displaceable door panel of an elevator car in an elevator installation with an elevator shaft having shaft doors. The movable door seal is arranged so that the door panel in a closed state is sealed off. The device includes an entrai... | 09/04/2007 |
| 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 |
| 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 |
| 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 |
| 7137484 | Safety system for restraining movement of elevator car when car doors are open A safety system for restraining movement of an elevator car employing a bi-directional safety and an associated car mounted governor with a linkage, between the governor and the elevator car door, including a brake cable and clutch, wherein the governor would operat... | 11/21/2006 |
| 7065831 | Sliding element with keeper device suspended from and guided on a roller rail by support rollers The invention relates to a sliding element, which is suspended and guided on a running track by means of roller carriers or gliding elements, using running track retainers that are connected to a substructure and engage with the underside of the running track. The i... | 06/27/2006 |
| 6945364 | 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... | 09/20/2005 |
| 6736241 | 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... | 05/18/2004 |
| 6513628 | Support for lift door drive A carrier for the reception of all important components of a door drive. The carrier has a base part and a length adapter, which are connectible together in such a manner that carriers of different lengths can be produced so that the carrier can be used i... | 02/04/2003 |
| 6474448 | Modular lock for elevator doors A modular lock (10) for elevator doors, in particular for locking and unlocking the floor doors of elevators and hoists, comprises a first fixed plate (12) and a second plate (14) articulated on the same, cooperating with the blades of the car activator a... | 11/05/2002 |
| 6082499 | Wrap-around elevator door A flexible door assembly includes an upper guide track comprising an elongate bar including at least two generally planar support surfaces. The upper guide track is mounted in the elevator cab, or outside the cab in the hoistway, above the door opening, d... | 07/04/2000 |
| 6000503 | Sliding two speed door mechanism for an elevator car A two door assembly (10) for an elevator car (11) includes a high speed door (12) and a low speed door (14) that move between an open and closed position to close the entrance (16) of the elevator car. The doors (12, 14) are retained slidably between a he... | 12/14/1999 |
| 5964319 | Remote-operated elevator door safety control A remote-operated elevator door safety control for holding open a door of an elevator from a remote location includes a transmitter remote from the elevator for selectively transmitting a door-open signal, a receiver at the elevator for receiving the door... | 10/12/1999 |
| 5878846 | Light duty elevator door operator An elevator car door operator includes a drive motor, a drive pulley mounted for rotation by the drive motor, a continuous loop drive belt mounted on the drive pulley at one end of the belt and on an idler pulley at the other end of the belt, a drive bar ... | 03/09/1999 |
| 5839543 | Elevator door control mechanism An elevator includes a housing having three door panels and a lever swung to operate the door panels. A casing is secured on top of the housing and has three tracks for slidably receiving three slides which are secured to the door panels. A wire couples t... | 11/24/1998 |
| 5819878 | Pretensioning system for synchronization and positioning system A pretensioning system for a relating cable synchronizing movement of elevator car doors includes a compression spring and a spacer disposed on one end of the relating cable. The compression spring is compressed to the length of the spacer disposed intern... | 10/13/1998 |
| 5813498 | Elevator door system having variable opening/closing width An elevator door system having variable opening/closing width includes a button (1) located in the hall in the loading area for calling the elevator car to that hall, multiple destination floor buttons (2) in the elevator car which indicate the destinatio... | 09/29/1998 |
| 5797471 | Linear door drive operator An elevator system has a car provided with a doorway and a door movable across the doorway. An improved mechanism to move the door selectively to open and closed positions includes a header mounted to the car above the door. The header supports a linear d... | 08/25/1998 |
| 5655626 | Roller guide for a sliding elevator door A roller guide for use with sliding elevator doors may include elements for effecting quieter sliding door running by reducing noise associated with the rollers running along the roller guide. The roller guide may by formed by a convex running surface mad... | 08/12/1997 |
| 5636714 | Bi-parting elevator door actuator apparatus A bi-parting elevator door actuator apparatus operably connected to a bi-parting door assembly having 1) a door interlock and power control assembly; 2) a bi-fold door actuator assembly; and 3) an electrical control circuit. The door interlock and power c... | 06/10/1997 |
| 5317934 | Variable speed linear actuator An apparatus that converts a rotary motion into linear motion through the use of a linkage system that has a pair of levers that are driven through a pulley arrangement. Wherein, the pair of levers and pulley arrangement are configured to produce a variab... | 06/07/1994 |
| 5083639 | Acoustical seal for elevator car doors An apparatus for sealing an automatic elevator door against sound closes the small air gaps between a door post and a door leaf rear edge, between an abutment and the door leaf top edge, between abutting front edges of door leaves, between an inner door l... | 01/28/1992 |
| 4926975 | Elevator car with improved door lock An elevator car having a clutch carried by a car door for engaging drive rollers of an adjacent hatch door via "open" and "close" vanes of the clutch. A door operator mounted on the car includes a door drive arm which is linked to the car door via a door ... | 05/22/1990 |
| 4896747 | Modular elevator system A modular elevator system is disclosed incorporating a wiring and control module which is attached to the elevator car. One of the modules includes a floor selection device and display panel accessible from within the elevator car and a proximity sensor a... | 01/30/1990 |
| 4781270 | Elevator door arrangement An elevator door arrangement includes at least one door panel and means engaging upper and lower portions of the panel for guiding the upper and lower portions for parallel movement. The means for guiding the lower part of the panel includes a guide membe... | 11/01/1988 |
| 4735292 | Hydraulically operated elevator door mechanism A hydraulically operated elevator door mechanism includes a motor-driven shaft connected to rotate gears within a fluid reservoir. Fluid is "pumped" as the gears rotate, to one side of a piston, propelling the piston. The piston is connected to two pulley... | 04/05/1988 |
| 4711323 | Door drive for doors of elevator cars The door drive is intended for use with a relatively great number of different elevator cars, different types of sliding doors, and different widths of sliding door panels. The door drive is readily adaptable to different installations merely by appropria... | 12/08/1987 |
| 4685537 | Elevator system which utilizes both rigid and resilient mounting arrangments for door operator An elevator system including an elevator car, a door for closing and opening an entrance into the elevator car, and a door operator on the canopy or car top which is operatively linked to the door. The door operator casing or enclosure is made into a prac... | 08/11/1987 |
| 4588049 | Double panel sliding door, especially for elevators To each panel is associated a panel suspension and guiding arrangement which comprises rollers cooperating with at least one guiding rail and through which the panel is slidably supported on the door frame. An extension of the guiding rails laterally beyo... | 05/13/1986 |
| 4359143 | Elevator system An elevator system including an elevator car having a front portion which defines an entranceway. A car support frame is disposed immediately adjacent to the front portion, and a door supported by the car support frame is mounted for movement to open and ... | 11/16/1982 |
| 4177881 | Elevator system An elevator system including an elevator car having an entranceway, a door having one or more door panels mounted for movement to open and close the entranceway, a door operator for the door, and mounting hardware for mounting the door operator on top of ... | 12/11/1979 |
| 4149615 | Apparatus for mounting an elevator door operator An elevator system including an elevator car having an entranceway, a door having one or more door panels mounted for movement to open and close the entranceway, a door operator for the door, and mounting hardware for mounting the door operator on top of ... | 04/17/1979 |
| 4148377 | Apparatus for actuating hoistway doors of an elevator An apparatus for actuating the hoistway doors of an elevator, which comprises a coupling element fixedly arranged at the hoistway or elevator shaft door and a movable electromagnetically actuatable coupling element arranged at the elevator cabin door whic... | 04/10/1979 |
| 4099599 | Method and apparatus for fastening a door panel to a door operator mounted on an elevator car An elevator system including an elevator car, an elevator door, and a door operator for operating the door to open and close an entranceway to the car. The door has integral hanger brackets which are fastened to a hanger plate associated with the door ope... | 07/11/1978 |
| 4056162 | Operating mechanism for overlapping panels type doorway closures Operating mechanism for doorway closures of the rollably suspended overlapping and interdependently laterally moving two panels type. The operating mechanism comprises a transversely extending shaft which is powerably turnable in both angular directions a... | 11/01/1977 |
