Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669465 | Elevator hoistway door bolt lock | Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He, Richard E. Peruggi +2 more | 1997-09-23 |
| 5668355 | Elevator cab door drive system | Jerome F. Jaminet, Thomas M. Kowalczyk, Edward E. Ahigian, Thomas M. McHugh, Thomas He +2 more | 1997-09-16 |
| 5651427 | Elevator door coupling and hold-close apparatus | Edward E. Ahigian, Thomas M. McHugh, Jerome F. Jaminet, Thomas He, Richard E. Peruggi +2 more | 1997-07-29 |
| 5651428 | Stationary actuator moving vane elevator car door coupling | Edward E. Ahigian, David W. Barrett, Thomas M. McHugh, Jerome F. Jaminet, Thomas He +2 more | 1997-07-29 |
| 5612518 | Linear induction motor door drive assembly for elevators | Jerome F. Jaminet, Zbigniew Piech, Frank Guliuzza, Jr., Thomas M. McHugh, Edward E. Ahigian +4 more | 1997-03-18 |
| 5538106 | Rotationally stiff elevator car door coupling | Thomas M. McHugh, Thomas M. Kowalczyk, Thomas He, Edward E. Ahigian, Jerome F. Jaminet +2 more | 1996-07-23 |
| 5509504 | Velocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car door | Thomas M. McHugh, David W. Barrett, Edward E. Ahigian, Jerome F. Jaminet, Thomas He +2 more | 1996-04-23 |
| 5503248 | Maintaining open loop current drive to linear induction motor | Richard E. Peruggi, Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He +2 more | 1996-04-02 |
| 5495918 | Smooth and quiet linear induction motor elevator door operation | Richard E. Peruggi, Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He +2 more | 1996-03-05 |
| 5494137 | Elevator door mounting system | Thomas M. Kowalczyk, Jerome F. Jaminet, Thomas M. McHugh, Edward E. Ahigian, Thomas He +2 more | 1996-02-27 |
| 5487449 | Magnetic elevator door coupling | David W. Barrett, Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He +2 more | 1996-01-30 |
| 5485896 | Rotary elevator car door coupling | Thomas M. Kowalczyk, Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He +2 more | 1996-01-23 |
| 5482142 | Quiet elevator rotary gate switch | — | 1996-01-09 |
| 5454447 | Elevator hoistway door bolt lock | Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He, Richard E. Peruggi +2 more | 1995-10-03 |
| 5435415 | Cammed wedge elevator car door coupling | Edward E. Ahigian, Thomas M. McHugh, Jerome F. Jaminet, Thomas He, Richard E. Peruggi +2 more | 1995-07-25 |
| 5207298 | Elevator rotary door interlock | Michael P. Donohoe, Christian G. Tonna | 1993-05-04 |
| 5203431 | Elevator rotary lost door interlock | Michael P. Donohoe, Christian G. Tonna | 1993-04-20 |
| 5139112 | Elevator car door lock | Christian G. Tonna | 1992-08-18 |