Otis Elevator Company

Leslie C Watterson

Ronnie E Thebeau

Daryl J Marvin

Peter L Herkel

Craig Drew Bogli

Michael J Tracey

Sandeep Sudi

Paul A Stranieri

Michael Garfinkel

Steven D Coste

Sally Day Mahoney

Kyle W Rogers

Frank Higgins

Bruce F Gallo

Dennis Hanvey

Kensaku Yamane

Paul C Hoppie

Tony Black

Shari R Parillo

Robert Mazzamauro

SuCheol Lee

Yosef Haimes

Mick Maurer

An illustrative example embodiment of an elevator system includes an elevator car situated for movement among a plurality of landings. The elevator car includes a car door and a door mover. A door interlock associated with a landing door at each of the landings is configured to couple the associated landing door with the car door. The door interlocks respectively include a lock switch. A controller is configured to: cause the elevator car to move to at least one of the landings; when the elevator car is at the at least one landing, cause the door mover to instigate movement of the door interlock sufficient to at least temporarily change a position of the lock switch; and locate a malfunctioning one of the lock switches at one of the landings based on the movement of the door interlock.

Automated elevator safety chain diagnosis

Disclosed is a fixture plate comprising a back plate defined by a member extending in a widthwise (W) direction and a height-wise (H) direction, a plurality of support arms including a first support arm and a second support arm connecting proximate a bottom edge of the back plate and spaced in the widthwise direction by a distance W, each of the plurality of support arms comprising a compound profile defining a pivot section and a support section the pivot section extending arcuately downward along the height-wise direction to a first distal end, the support section comprising a first portion forming a support base, the support base extending perpendicularly away from the back plate to a second distal end, and a second portion that forms a hook portion, the hook portion extending upwardly along the height-wise direction to a third distal end to from a free end of the support section.

Fixture plate and housing

A method for automating maintenance of a conveyance system includes performing automated maintenance tasks on the conveyance system; storing results of the automated maintenance tasks in a maintenance database; and providing maintenance tasks to the mobile device, each maintenance task including a maintenance task identifier and a maintenance task status.

Automated conveyance system maintenance

A power architecture includes a panel receiving power from a power grid through a breaker, a power supply coupled to the breaker to receive power from the grid, a battery coupled to the power supply through a switch, an elevator motor controller coupled to the power supply, the power supply providing power from at least one of the grid and the battery to the controller, and a charger coupled to the breaker and the battery and configured to receive power from the power grid and provide power to the battery to charge the battery.

Elevator power supply for inverter controller

An elevator safety system including a controller, and a hoistway safety node arranged at a pit portion of an elevator hoistway. The hoistway node is operatively connected to one of a pit safety device and a lower hoistway device arranged at the elevator pit. A first bus links the hoistway node and the controller. The first bus passes communication signals directly from the hoistway node to the controller. A car node is arranged in an elevator car. The car node is operatively connected to a car safety device arranged at the elevator car. A second bus links the car node and the controller. The second bus passes communication signals directly from the car node to the controller.

Elevator safety system having multiple buses

A system for monitoring elevator car travel includes a plurality of bi-stable sensors () traveling with an elevator car (); a plurality of sense elements () positioned along a path of the sensors (); the sense elements () causing the sensors () to assume one of a first state and a second state; wherein states of the sensors () define a zone code () identifying a zone corresponding to the elevator car () position, the zone code () being a gray code.

Determining elevator car position using bi-stable sensors

Growing community of inventors

Unionville, CT, United States of America

Leslie C Watterson