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Richard E. Kulak
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Bristol, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Elevator car door interlock
Patent number
11,795,033
Issue date
Oct 24, 2023
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Monitoring system, elevator door system having monitoring system, a...
Patent number
11,661,315
Issue date
May 30, 2023
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door in interlock assembly
Patent number
11,655,122
Issue date
May 23, 2023
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Car door interlock
Patent number
11,254,542
Issue date
Feb 22, 2022
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator car door interlock
Patent number
11,247,872
Issue date
Feb 15, 2022
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator car door interlock
Patent number
11,124,389
Issue date
Sep 21, 2021
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door interlock assembly
Patent number
11,046,557
Issue date
Jun 29, 2021
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door interlock assembly
Patent number
11,040,858
Issue date
Jun 22, 2021
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door interlock assembly
Patent number
11,034,548
Issue date
Jun 15, 2021
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator car door interlock
Patent number
10,882,720
Issue date
Jan 5, 2021
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Car door interlock with sill lock
Patent number
10,710,843
Issue date
Jul 14, 2020
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Monitoring system, elevator door system having monitoring system, a...
Patent number
10,569,994
Issue date
Feb 25, 2020
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Alignment system for an elevator car
Patent number
10,486,940
Issue date
Nov 26, 2019
Otis Elevator Company
Tadeusz Pawel Witczak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Guide assembly for at least one elevator door
Patent number
8,272,481
Issue date
Sep 25, 2012
Otis Elevator Company
Michael Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator with rollers having selectively variable hardness
Patent number
7,543,686
Issue date
Jun 9, 2009
Otis Elevator Company
Richard Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Rotary actuated overspeed safety device
Patent number
6,457,569
Issue date
Oct 1, 2002
Otis Elevator Company
James M. Draper
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Door coupler and latch system for elevator car and landing doors
Patent number
6,446,759
Issue date
Sep 10, 2002
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Variable traction mechanism for rotary actuated overspeed safety de...
Patent number
6,296,080
Issue date
Oct 2, 2001
Otis Elevator Company
James M. Draper
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door brake, brake, lock, and hold-open
Patent number
5,880,414
Issue date
Mar 9, 1999
Otis Elevator Company
Jerome F. Jaminet
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
High performance linear induction motor door operator
Patent number
5,862,887
Issue date
Jan 26, 1999
Otis Elevator Company
Bruce P. Swaybill
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator evacuation deterrent device
Patent number
5,819,877
Issue date
Oct 13, 1998
Otis Elevator Company
James A. Rivera
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Triac drive for three-phase line-powered linear induction motor ele...
Patent number
5,808,246
Issue date
Sep 15, 1998
Otis Elevator Company
Richard E. Peruggi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door drive using dual secondary linear induction motor
Patent number
5,736,693
Issue date
Apr 7, 1998
Otis Elevator Company
Zbigniew Piech
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator car evacuation deterrent device
Patent number
5,732,796
Issue date
Mar 31, 1998
Otis Elevator Company
Edward E. Ahigian
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Time-optimal control of an AC line-driven linear motor elevator doo...
Patent number
5,682,023
Issue date
Oct 28, 1997
Otis Elevator Company
Thomas M. McHugh
G05 - CONTROLLING REGULATING
Information
Patent Grant
Elevator hoistway door bolt lock
Patent number
5,669,465
Issue date
Sep 23, 1997
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator cab door drive system
Patent number
5,668,355
Issue date
Sep 16, 1997
Otis Elevator Company
Jerome F. Jaminet
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Stationary actuator moving vane elevator car door coupling
Patent number
5,651,428
Issue date
Jul 29, 1997
Otis Elevator Company
Edward E. Ahigian
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator door coupling and hold-close apparatus
Patent number
5,651,427
Issue date
Jul 29, 1997
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Linear induction motor door drive assembly for elevators
Patent number
5,612,518
Issue date
Mar 18, 1997
Otis Elevator Company
Jerome F. Jaminet
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
Information
Patent Application
ELEVATOR CAR DOOR INTERLOCK
Publication number
20210380373
Publication date
Dec 9, 2021
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR DOOR INTERLOCK ASSEMBLY
Publication number
20210261384
Publication date
Aug 26, 2021
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR CAR DOOR INTERLOCK
Publication number
20200262683
Publication date
Aug 20, 2020
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
MONITORING SYSTEM, ELEVATOR DOOR SYSTEM HAVING MONITORING SYSTEM, A...
Publication number
20200148508
Publication date
May 14, 2020
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR CAR DOOR INTERLOCK
Publication number
20200122978
Publication date
Apr 23, 2020
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Application
CAR DOOR INTERLOCK
Publication number
20200055705
Publication date
Feb 20, 2020
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR DOOR INTERLOCK ASSEMBLY
Publication number
20190337768
Publication date
Nov 7, 2019
Otis Elevator Company
Richard E. KULAK
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR DOOR INTERLOCK ASSEMBLY
Publication number
20190337767
Publication date
Nov 7, 2019
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR DOOR INTERLOCK ASSEMBLY
Publication number
20190337766
Publication date
Nov 7, 2019
Otis Elevator Company
Michael J. Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR CAR DOOR INTERLOCK
Publication number
20180265334
Publication date
Sep 20, 2018
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
CAR DOOR INTERLOCK WITH SILL LOCK
Publication number
20180229972
Publication date
Aug 16, 2018
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ALIGNMENT SYSTEM FOR AN ELEVATOR CAR
Publication number
20170057784
Publication date
Mar 2, 2017
Otis Elevator Company
Tadeusz Pawel Witczak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
MONITORING SYSTEM, ELEVATOR DOOR SYSTEM HAVING MONITORING SYSTEM, A...
Publication number
20170029246
Publication date
Feb 2, 2017
Otis Elevator Company
Richard E. Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
GUIDE ASSEMBLY FOR AT LEAST ONE ELEVATOR DOOR
Publication number
20100147632
Publication date
Jun 17, 2010
Michael Tracey
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator door operator and interlock arrangement
Publication number
20080011556
Publication date
Jan 17, 2008
Timothy P. Galante
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator roller guide with variable stiffness damper
Publication number
20070000732
Publication date
Jan 4, 2007
Richard Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator with rollers having selectively variable hardness
Publication number
20060207835
Publication date
Sep 21, 2006
Otis Elevator Company
Richard Kulak
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ROTARY ACTUATED OVERSPEED SAFETY DEVICE
Publication number
20010037920
Publication date
Nov 8, 2001
OTIS ELEVATOR COMPANY
JAMES M. DRAPER
B66 - HOISTING LIFTING HAULING