Inventor
TRACEY MICHAEL J
US28 patents
Patents
28 patentsUS6446759B1Sep 10, 2002
Door coupler and latch system for elevator car and landing doors
OTIS ELEVATOR CO61 citations96
US5701973ADec 30, 1997
Linear belt door operator
OTIS ELEVATOR CO32 citations92
US5659160AAug 19, 1997
Linear belt door operator
OTIS ELEVATOR CO24 citations92
US5819877AOct 13, 1998
Elevator evacuation deterrent device
OTIS ELEVATOR CO45 citations88
US11072515B2Jul 27, 2021
Automated elevator maintenance mode initiation
OTIS ELEVATOR CO9 citations85
US5841082ANov 24, 1998
Secondary guidance system for linear induction motors driving elevator car doors
OTIS ELEVATOR CO8 citations74
US11034548B2Jun 15, 2021
Elevator door interlock assembly
OTIS ELEVATOR CO2 citations73
US10710843B2Jul 14, 2020
Car door interlock with sill lock
OTIS ELEVATOR CO2 citations73
US10569994B2Feb 25, 2020
Monitoring system, elevator door system having monitoring system, and method
OTIS ELEVATOR CO4 citations73
US5862887AJan 26, 1999
High performance linear induction motor door operator
OTIS ELEVATOR CO15 citations73
US10837215B2Nov 17, 2020
Zone object detection system for elevator system
OTIS ELEVATOR CO4 citations71
US11440774B2Sep 13, 2022
Elevator roping sway damper assembly
OTIS ELEVATOR CO3 citations69
US5881844AMar 16, 1999
Secondary positioning system for elevator car doors
OTIS ELEVATOR CO8 citations65
US5756946AMay 26, 1998
Flexible mounting of a motor secondary in a linear induction motor for driving elevator car doors
OTIS ELEVATOR CO4 citations63
US11795033B2Oct 24, 2023
Elevator car door interlock
OTIS ELEVATOR CO0 citations62
US11760604B1Sep 19, 2023
Versatile elevator door interlock assembly
OTIS ELEVATOR CO1 citations62
US11661315B2May 30, 2023
Monitoring system, elevator door system having monitoring system, and method
OTIS ELEVATOR CO0 citations62
US11655122B2May 23, 2023
Elevator door in interlock assembly
OTIS ELEVATOR CO0 citations62
US11124389B2Sep 21, 2021
Elevator car door interlock
OTIS ELEVATOR CO0 citations62
US11046557B2Jun 29, 2021
Elevator door interlock assembly
OTIS ELEVATOR CO1 citations62
US11040858B2Jun 22, 2021
Elevator door interlock assembly
OTIS ELEVATOR CO1 citations62
US10882720B2Jan 5, 2021
Elevator car door interlock
OTIS ELEVATOR CO0 citations62
US11390487B2Jul 19, 2022
Automated elevator safety chain diagnosis
OTIS ELEVATOR CO1 citations60
US11572251B2Feb 7, 2023
Elevator door sensor fusion, fault detection, and service notification
OTIS ELEVATOR CO0 citations55
US12091283B2Sep 17, 2024
Elevator door astragal
OTIS ELEVATOR CO0 citations52
US11254542B2Feb 22, 2022
Car door interlock
OTIS ELEVATOR CO0 citations52
US11247872B2Feb 15, 2022
Elevator car door interlock
OTIS ELEVATOR CO0 citations52
US11390492B2Jul 19, 2022
Method and assembly for positioning an elevator door interlock
OTIS ELEVATOR CO0 citations49