Matches 1 - 50 out of 50
Match Document Document Title
7549516 Elevator door interlock  
An elevator door interlock incorporates cast parts thereby drastically reducing the number of parts required for assembly. Other elements are also incorporated to further reduce complexity in...
7445089 Sealing device with magnetically movable door seal for a closable door leaf of an elevator installation  
An elevator installation has a sealing element that is movable by an electromagnetic actuator from a first position to a second position. The sealing element includes a seal carrier that is movably...
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...
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...
7270218 Sealing device for elevator door  
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...
7264089 Swing lock mechanism  
A system and method for installing an elevator door hatchway opening. The system comprises a steel square comprising a top piece, a bottom piece and left and right jambs, a door buck that is bolted...
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...
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....
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...
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...
6851521 Emergency unlocking device at shaft doors of elevators  
An emergency unlocking device includes an unlocking lever actuated by an unlocking slide that is guided in a guide fastened to the inner side of the shaft door. The guide covers a passage that is...
6659514 Swinging elevator hatchway door interlock  
An electromechanical interlock for a swinging elevator door is disclosed. The interlock comprises a pivotal hook member that may be attached to a swinging elevator door. The hook has a beak end and...
6591946 Adjustable door restrictor cable for an elevator car  
A door locking system for retrofit installation on an automatic sliding two-panel door of an elevator car prohibits opening and closing of the door from the interior of the car when between two...
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...
6382362 Optical monitoring system for hoistway door interlocks  
A system for monitoring an elevator door in a hoistway. The elevator door is movable between a closed position and an open position. The system includes a transmitter for emitting an optical signal...
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...
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...
6209612 Locking device for a door system  
Door system with a locking device which has top and bottom locking elements which can be displaced by a drive unit to realize a door system which is simple and easy to install, whereby the...
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...
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...
6021871 Apparatus for opening and closing a car door and a shaft door of an elevator installation  
An apparatus for opening and closing a car door and a shaft door of an elevator installation includes an entraining system (E) arranged at the car door and a cooperating locking mechanism (L). The...
5950767 Optical door lock  
A safety chain of an elevator system utilizes optical fiber to verify mechanical locking of elevator doors. The elevator doors have locks which incorporate the optical fiber to determine if each of...
5918706 Hold closed feature for elevator car doors  
An elevator car includes a hold closed feature for an elevator car door. The hold closed feature maintains the elevator car door in a hold closed position when the elevator car is not at a landing...
5918705 Building elevator door restrictor  
Opening of an elevator door by occupants of a car which is stalled between building floors is prevented by a locking member which is movable by an electrical actuator between a door locking...
5918704 Car door lock  
A car door lock for locking elevator car doors when the elevator car is in transit and/or outside the door zone includes a solenoid activated lever that pushes a lock arm to open. The solenoid is...
5899302 Elevator door interlock  
An elevator door interlock includes a position indicator mounted at each landing, an elongate vane pivotally mounted in a fixed position with respect to the car door for movement between a first...
5894911 Car door locking system  
Microprocessor-based car door locking system includes an electromechanical door lock for elevator car doors having a latch-type rotary solenoid to move a plunger into locked and unlocked positions....
5819877 Elevator evacuation deterrent device  
A simplified elevator car door lock assembly locks an elevator car door if the car is outside a landing zone and there is an attempt to open those doors. The car doors are connected to the hoistway...
5732797 Safety release device operating in a linear belt transmission for automatically-opening lift and elevator gates  
The invention relates to a safety device for gates of lifts and elevators comprising a release device (4) which, when a door of the lift gate is closing and meets an obstruction, causing an...
5730254 Elevator door restraint device  
An elevator car door restraint includes a position indicator mounted at the access points at each of the floors, a locking arm pivotally mounted between its ends on a first portion of the car for...
5690189 Apparatus and method for locking and unlocking the door of an elevator car  
An apparatus for locking the door of an elevator car includes a lock (12) that locks the car door, a guide surface (9) in the elevator shaft at each landing and a linkage (6) operating the lock...
5655627 Elevator door restrictor  
An elevator is provided with a car, an inner door mounted to the car and outer doors mounted to floor openings which define floor zones. The inner door registers with the outer doors when the car...
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...
5386886 Elevator door lock mechanism  
A door lock mechanism for a sliding door is provided comprising a pivotly mounted first lock member, a second lock member, and a mechanism for selectively engaging the first lock member. The...
5377785 Door closing system  
A door closing system for subsequent installation on an automatic sliding door of an elevator car is coupled, at floor stops, via cams and couplings with the hoistway door and is opened and closed...
5152374 Elevator system for a building  
An elevator system for a two storey building includes two carriages each of which is movable from the upper floor to the lower floor and which are mounted in a counterbalance arrangement so as to...
5139112 Elevator car door lock  
An elevator door system utilizes a cam to unlatch hoistway doors. The cam is required by code to have a greater swing motion than is required to unlock the hoistway doors. A mechanism follows the...
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...
4934488 Door lock for an elevator car  
A door lock for an elevator car has a latch which is linked with a pivot arm which is pivotably mounted on the elevator car. The latch and the pivot arm can rotate together between a latched...
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...
4529065 Elevator system  
An elevator system including an elevator car having an electromechanical door restraint mechanism which includes a locked position which permits slight opening of the door by passengers for...
4491200 Locking mechanism for an elevator car door  
An apparatus for preventing the car door section of an elevator car from being opened when the elevator car is not located at an authorized landing zone in the elevator shaft. A car door locking...
4423799 Vehicle door lock for limiting door opening to specified vehicle positions  
A locking mechanism for the doors of an elevator car which is disabled when the car is within a short distance from a landing but which otherwise permits the doors to be opened by an amount...
4313525 Car door safety interlock  
The power operated sliding door of an elevator car is provided with a mechanical safety interlock which permits the car door to be moved more than a critical distance from its closed position only...
4252218 Device and method for unlocking elevator doors  
A device and method for unlocking elevator doors from the outside comprises a flexible metal rod having a handle, two arms, a rectangular, "U"-shaped portion formed by the arms, and an unlocking...
4108283 Master operator for vertically moving elevator car doors  
A master door operator employs gate mounted driving clutch members which are locked in the clutching position by linkage arms, and a plurality of driven clutches are respectively mounted on the...
3721319 HOISTS  
A gate locking mechanism for the cage of a hoist having a plurality of landings, said mechanism comprising a shaft carrying an operating handle and having a lever pivotally mounted thereon, a cam...
3659677 CAGE GATE LOCK MECHANISMS  
A gate lock mechanism for the cage of a hoist, said mechanism comprising a latch member arranged to normally engage a gate of the cage to prevent opening of said gate and pivotally mounted on a...
3252547 Fluid-operated elevator  
3012636 Semi-automatic elevator door  
Matches 1 - 50 out of 50