Inventor
Thomas M. Kowalczyk
Inventor
Farmington, CT, US
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B66Bprimary
B66BElevators27%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof23%
E05FDevices for moving wings into open or closed position21%
E05DHinges or suspension devices for doors, windows or wings13%
H02KDynamo-electric machines4%
E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates3%
G05BControl or regulating systems in general3%
E05BLocks1%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure1%
G05DSystems for controlling or regulating non-electric variables1%
PatentTitleYear
8,997,401'Bi-parting, bi-directional door system'20158,756,864'Slide door'20148,627,604'Bypass door'20148,443,549'Sliding door with large opening'20138,365,469'Door operating system'20136,786,006'Automatic door assembly and door operator therefor'20046,588,153'Power door kit'20036,553,717'Retrofit power door assembly'20036,530,178'Automatic door assembly and door operator therefor'20036,481,160'Axial door operator'20026,336,294'Automatic door assembly and door operator therefor'20026,182,516'Low-cost, easy-to-use, dynamometer'20015,949,036'Double linear motor and elevator doors using same'19995,918,706'Hold closed feature for elevator car doors'19995,880,414'Elevator door brake, brake, lock, and hold-open'19995,862,887'High performance linear induction motor door operator'19995,808,246'Triac drive for three-phase line-powered linear induction motor elevator door operator'19985,736,693'Elevator door drive using dual secondary linear induction motor'19985,732,796'Elevator car evacuation deterrent device'19985,682,023'Time-optimal control of an AC line-driven linear motor elevator door operator'19975,669,465'Elevator hoistway door bolt lock'19975,668,355'Elevator cab door drive system'19975,651,427'Elevator door coupling and hold-close apparatus'19975,651,428'Stationary actuator moving vane elevator car door coupling'19975,612,518'Linear induction motor door drive assembly for elevators'19975,538,106'Rotationally stiff elevator car door coupling'19965,509,504'Velocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car door'19965,503,248'Maintaining open loop current drive to linear induction motor'19965,495,918'Smooth and quiet linear induction motor elevator door operation'19965,494,137'Elevator door mounting system'19965,485,896'Rotary elevator car door coupling'19965,454,447'Elevator hoistway door bolt lock'19955,435,415'Cammed wedge elevator car door coupling'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–1999Patents assigned to OTIS ELEVATOR CO (21)· patent assignee history
1995–2013Based in Farmington, CT, US· patent location history
2002–2004Patents assigned to STANLEY WORKS (6)· patent assignee history
2013–2015Patents assigned to STANLEY BLACK & DECKER INC (5)· patent assignee history
2013–2014Patents assigned to KOWALCZYK THOMAS M (4)· patent assignee history
2013–2014Patents assigned to SPINELLI VITO A (3)· patent assignee history
2013–2015Based in Unionville, CT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OTIS ELEVATOR CO | 21 | 1995–1999 |
| STANLEY WORKS | 6 | 2002–2004 |
| STANLEY BLACK & DECKER INC | 5 | 2013–2015 |
| KOWALCZYK THOMAS Mself | 4 | 2013–2014 |
| SPINELLI VITO A | 3 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Farmington, CT, US | 29 | 1995–2013 |
| Unionville, CT, US | 4 | 2013–2015 |