Bizarre Patents
A new toilet tank assembly aquarium for housing aquatic creatures.
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 |
| 7681695 | Method of modernizing the car door system of an elevator, and modernizing constructional set for carrying out the method A method of modernizing the car door system of a elevator car, which originally comprises at least one car door leaf, a door drive with a crank gear and a drive linkage displacing the car door leaf and a car door/shaft door coupling actuated by the drive linkage, wi... | 03/23/2010 |
| 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 |
| 7398862 | Car door lock A door locking system for a freight or passenger elevator or goods lift installation having vertically spaced landings served by a vertically movable car, the landings and car each being protected by associated horizontal slide doors, a mechanical interlock device a... | 07/15/2008 |
| 7370731 | Device for connecting a car door with a shaft door and for locking and unlocking the doors, a device for emergency unlocking of a car door and a method for emergency unlocking of a car door A device for connecting a car door with a shaft door and for emergency unlocking of a car door consists of an entrainer arranged at the car door, which entrainer detachably connects, together with a roller pair arranged at the shaft door, the car door with the shaft... | 05/13/2008 |
| 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 |
| 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 |
| 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 |
| 7252179 | Elevator-door latching and opening device Elevator doors have operating bars that are pivoted on a car door and that serve to actuate shaft-door actuating rollers that operate shaft doors. These doors are operated by an apparatus having an actuating device that changes a spacing between the operating bars a... | 08/07/2007 |
| 7252641 | Method of operating a biopsy device A biopsy device and method for operating the biopsy device are disclosed. The method of operating the biopsy device can include varying the translational speed of a cutter independently of the speed of a motor driving translation of the cutter. The method can also i... | 08/07/2007 |
| 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 |
| 7100745 | Equipment at an elevator car for temporarily coupling a car door leaf with a shaft door leaf for actuation of a car door unlocking means Equipment for temporarily coupling an elevator car door leaf with a shaft door leaf and for actuating a car door lock includes a coupling mechanism arranged at the car door leaf with two entraining runners mounted on two pivotable adjusting elements. The spacing bet... | 09/05/2006 |
| 7097002 | Elevator door drive device An elevator door drive device, which opens and closes at least one car door leaf and a corresponding shaft door leaf, includes a coupling mechanism mounted at the car door leaf for transmitting the car door leaf movement to the shaft door leaf with two parallel entr... | 08/29/2006 |
| 7097003 | Elevator landing door broken chain safety device A vertically sliding freight elevator landing door with a safety brake that deploys when a chain suspending the door breaks. The safety brake is adapted for use on both panels that slide up to open or that slide down to open. The brake, which is simple in constructi... | 08/29/2006 |
| 7077242 | Device for connecting a car door with a shaft door and for locking and unlocking the doors, a device for emergency unlocking of a car door and a method for emergency unlocking a car door A device for connecting a car door with a shaft door and for emergency unlocking of a car door consists of an entrainer arranged at the car door, which entrainer detachably connects, together with a roller pair arranged at the shaft door, the car door with the shaft... | 07/18/2006 |
| 6446759 | Door coupler and latch system for elevator car and landing doors A coupling (8) for engaging an elevator car door (16) and a landing door (20) includes a fixed vane (36) and a movable vane (38). The movable vane is positioned by an engagement link (42) in response to movement of the car door (16) and the presence or ab... | 09/10/2002 |
| 6374952 | Elevator door apparatus A car cam and locking roller locking structure that opens and closes elevator doors so that the lateral sliding of the car will not affect the opening of the doors. The invention is a mechanism to open and close elevator doors that is used to start the op... | 04/23/2002 |
| 6340073 | Elevator door system An improved elevator door system for reducing vibration and noise in opening/closing a car door and a hatch door and allowing fast operation by releasing a landing door lock device before the car door moves. The elevator door system includes a hatch door;... | 01/22/2002 |
| 6328133 | Elevator door with improved clutch device Disclosed is an elevator door with an improved clutch device suitable for increasing clutch speed and decreasing clutch distance of a car door and a hatch door. The elevator door with an improved clutch device comprises a hatch door having a pair of clutc... | 12/11/2001 |
| 6220396 | Door restrictor apparatus for elevators The present invention provides a door restrictor apparatus for locking and preventing a sliding door on an elevator car from unauthorized opening. The door restrictor apparatus includes a locking lug mounted on the elevator car, an actuating mechanism hav... | 04/24/2001 |
| 6189658 | Procedure for moving the landing door of an elevator, and a door coupler The landing door of an elevator is opened by the opening movement of the car door and closed by the closing movement of the car door by using a door coupler (20) attached to the car door. The door coupler has coupling elements (52,53) designed to engage a... | 02/20/2001 |
| 6173815 | Door coupler and locking device A door coupler (4) comprising gripping elements (14,15) moved by a linkage (2) and designed to grip a counterpart (17,18) on the landing door, and a lock catch (10) which has a closed position and an open position. The releasing movement of the lock catch... | 01/16/2001 |
| 6164417 | Procedure for closing an elevator landing door, and a door coupler In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the clo... | 12/26/2000 |
| 6070700 | Operating system for elevator doors An operating system placed on the cabin door is shown with a continuous line in rest position and with a dotted line in working position. An arrow marked with a (Y) indicates a horizontal movement undertaken by the operating system in the Y-direction and ... | 06/06/2000 |
| 6062345 | Elevator interlocking mechanism An elevator interlocking mechanism interlocks the elevator cage door and each landing door, and includes a release mechanism for release of the interlocks when the elevator cage is at rest at a landing. The elevator cage interlock comprises an elevator do... | 05/16/2000 |
| 5988320 | Arrangement in the opening and closing of automatic elevator door, and a door coupler In the arrangement in the opening and closing of automatic elevator doors, the door coupler (20) is mounted on the car door so as to be movable in the direction of movement of the car door. The door coupler (20) is connected to a lever (21) whose first en... | 11/23/1999 |
| 5950766 | Procedure for closing an elevator landing door, and a door coupler In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the clo... | 09/14/1999 |
| 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 |
| 5690188 | Elevator door system An elevator door system including a landing door, a car door provided on a car, a latch device for locking the landing door when the landing door is closed. The elevator door system also includes a door locking device provided on the landing door composed... | 11/25/1997 |
| 5584365 | Telescoping elevator door system A telescoping elevator door apparatus for an elevator having a car for travel in a hoistway is provided. The door apparatus comprises a fast elevator door, a slow elevator door, a first drive, and a second drive. The fast and slow doors are positioned to ... | 12/17/1996 |
| 5575357 | Entraining apparatus for elevator doors An entraining apparatus for the coupling, unlatching and entraining of elevator shaft doors includes an entraining parallelogram which is movable laterally and is actuated by a door drive on an elevator car. The entraining parallelogram has two vertically... | 11/19/1996 |
| 5544720 | Entraining and unlatching apparatus for elevator doors An apparatus for entraining and unlatching an elevator car door and a shaft door includes an electromagnet having a movable armature attached to a first bellows mounted on a wall of the car. An entraining and unlatching cam is attached to a second bellows... | 08/13/1996 |
| 5246089 | Door drive apparatus with locking mechanism for elevators A door drive apparatus with a locking mechanism for elevator doors permits the opening of the car door situated in the region of a floor together with a coupled-on shaft door, driven automatically in the normal case or manually in the case of a power fail... | 09/21/1993 |
| 5141080 | Device and procedure for opening of an elevator The invention relates to an elevator door opening device designed for opening the car doors and the landing doors. The door opening device comprises a power means and a door coupling apparatus for opening and closing the car and landing doors essentially ... | 08/25/1992 |
| 5129486 | Elevator door lock A center opening, linkage driven elevator door system comprises: a single door lock; an air cord; a first hoistway door attached to the air cord; a second hoistway door having a stop in register with the air cord, the second hoistway door being locked by ... | 07/14/1992 |
| 5105916 | Elevator door coupling device A linkage is provided for joining a car door to a hoistway door, the linkage having a lever attached about a middle portion thereof to one of the car or hoistway doors, the lever having a roller disposed at an end portion thereof for fixedly engaging the ... | 04/21/1992 |
| 5005673 | Coordinated elevator car door-hall door movement Movable vanes mounted on the exterior of an elevator car door engage rollers on the interior of the hallway door as the car door commences to open. Subsequent opening and closing movement of the car and the hallway doors occurs simultaneously and at the s... | 04/09/1991 |
| 4947964 | Door drive apparatus with locking mechanism for elevators An apparatus for opening and closing the car door of an elevator car which is situated in the door opening zone of a floor is coupled together with a shaft door, and is driven automatically by a drive motor or, in the case of a power failure, manually by ... | 08/14/1990 |
| 4926974 | Elevator car with improved car door clutch An elevator car having a clutch pivotally carried by a car door and biased to an operative position in which drive rollers of an adjacent hatch door may be engaged by "open" and "close" vanes. A first parallelogram linkage operates the close vane in direc... | 05/22/1990 |
| 4778034 | Device for controlling the opening and shutting movement of sliding elevator doors The device disclosed serves to control the opening and shutting movement of sliding elevator doors, and is designed to lock the compartment door (3) and the landing door (5) together when positioned face to face, in such a way that both doors open and shu... | 10/18/1988 |
| 4457405 | Car and hoistway door coupling apparatus An apparatus is provided which couples a car door and a hall door in an elevator system. The apparatus includes a roller which is spring loaded into a first position for engaging a vane on the car door and which is movable from that first position for dis... | 07/03/1984 |
