Otis Elevator Company

Jose Sevilleja

Alfonso Garrido

Juan Martin

Armando Servia

Antonio Sanchez

Andres Monzon

Jose Miguel Aguado

Jose M Sandoval

Richard J Ericson

Leandre Adifon

Franck J Det

Julian Cabanas

David Wayne Jones

José M Sandoval

Juan Manual Oronoz

Juan Manuel Oronoz

Jose M Sanduval

Alphonso Garrido

Roberto Corbetta

An elevator machine () includes a machine shaft () and a sheave () that rotates with the machine shaft (). A motor () selectively rotates the machine shaft (). A brake () having at least one brake armature () selectively moves a brake rotor () coupled for rotation with the shaft () between a braking position and a released position. The brake rotor () selectively contacts a braking surface () formed directly on a housing () to resist rotation of the machine shaft ().

Elevator machine with integrated brake surface

An elevator brake () rotor for use in an elevator machine () includes a non-metallic elevator brake hub () and a metal flange (), both of which have an opening with a splined portion for guiding axial movement of the rotor along a rotable shaft (). This arrangement reduces metal-to-metal contact between the rotor and shaft and reduces noise.

Elevator brake with composite brake hub

An elevator system includes a hoistway having a plurality of hoistway doors. An elevator car and counterweight are provided in the hoistway. A drive motor is drivingly coupled to the elevator car and counterweight, and is located adjacent to either the top or bottom portion of a hoistway door so as to eliminate the need to provide a machine room above the hoistway ceiling.

Elevator system having drive motor located adjacent to hoistway door

A brake release mechanism for an elevator machine includes apparatus to reduce the braking force on the machine shaft. The apparatus may be actuated from a position located remotely from the machine.

Remote brake release mechanism for an elevator machine

An elevator brake includes a fluid enclosure that provides a force to counter a braking force. In a particular embodiment, the fluid enclosure functions as a fluid pressure amplifier between a controllable actuator and a braking surface. The fluid enclosure increases the force of the actuator such that smaller, more controllable actuators may be used to control the brake.

Elevator brake

A traction drive elevator system includes a device to enhance the traction forces between the ropes as the traction sheave. As a result, the traction force is the sum of the traction force caused by the tension in the ropes and the traction force caused by the traction enhancement device.

Device for enhancing elevator rope traction

A elevator cab car operating panel has a convex cover cooperating with one of the cab walls to define an enclosed space in which a lighting source is disposed. A pair of translucent panels cooperate with the cover to allow the light to emanate from the car operating panel to provide the primary source of light for the cab. The cab wall may have a concave shape for cooperating with the convex cover to define the enclosed space.

Elevator cabs

The input axle (1) of an elevator machine transmits a rotational movement to an output axle (13) by means of a conventional worm gear/ring gear device (10), (11) or similar device, the output axle (13) penetrating a sheave (12) which carries the cable that suspends a cabin. The output axle (13) is supported by at only two points (3,4) which are collateral to the sheave (12), and has a projecting end that penetrates and supports the ring gear (11).

Geared elevator machine

An elevator speed and positioning device includes an elongated member and a rotating disk. The elongated member includes an apparatus for indicating position along the member and the disk includes an apparatus for communicating the indicating apparatus. A constant relationship exists between the elongated member and the disk such that relative positions between the two are repeatable. The relative motion between the elongated member and the disk may be quantified to determine the relative position of the elevator car.

Elevator speed and position indicating device

The device is applicable to elevator telescopic two-speed doors, using either two panels with opening towards one side or else using four panels with opening in the center. The rolling device comprises linear ball bearings mounted on a single circular track which together provide a sliding apparatus for the doors. The rolling device further comprises a case for enclosing the sliding apparatus to minimize the intrusion of foreign objects such as dirt and dust.

Roller-track systems for telescopic doors on elevators

An hydraulic elevator utilizes a double acting cylinder to drive a counterweighted elevator upwardly and downwardly. The weight of the counterweight is approximately equal to the weight of the car plus 50% of the duty load of the elevator.

Advanced energy saving hydraulic elevator

An elevator disc brake is rigidly attached to a shaft attaching to an elevator sheave. The disc brake includes a rotating disc and a non-rotating plate, the plate being driven towards the disc by a plurality of springs and moved away from the disc an electromagnet. Gaps between the plate and the disc and between the electromagnet and the plate are readily adjustable an adjustable spring seat.

Elevator disc brake

The device is applicable to elevator telescopic two-speed doors, using either two panels with opening towards one side or else using four panels with opening in the center, the rolling device being foreseen to be mounted on a single track as a sliding guide. The rolling device includes a case which encloses rollers and counter rollers which roll along the track. The case is formed from two parts connected together and to a bracket on the door by a pair of fasteners. The fasteners form the axles of the rollers. The track can be circular in section and the rollers can be linear ball bearings.

The improvments are applicable to elevator doors and even to doors of vehicles, either made out of two leaves which move in the same direction for the opening and closing thereof, or made out of four leaves each pair of the four leaves opening in the center. The improvements are centered on the use of a single track for both leaves or door panels, a track which may have a rectangular or circular section, located in a box with rolling or movement components which are fastened to the corresponding hanger support of the panel or door. Another improvement consists of the two panels of the door being exactly the same, each one of them including a sound absorbing element. The door frame unit is removable with preassembled active elements so that the same may be transported in a compact, easy manner from the factory to the place of use.

Growing community of inventors

Madrid, Spain

Jose Sevilleja