Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660249 | Elevator cabs transferred horizontally between double deck elevators | Bruce A. Powell, Joseph Bittar, Frederick H. Barker, Samuel C. Wan, Paul Bennett +1 more | 1997-08-26 |
| 5655625 | Emergency elevator cab commandeering shuttle | Frederick H. Barker, LucyMary Salmon, Paul Bennett, Richard C. McCarthy, Joseph Bittar +2 more | 1997-08-12 |
| 5651426 | Synchronous elevator shuttle system | Joseph Bittar, Richard C. McCarthy, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan +2 more | 1997-07-29 |
| 5601156 | Maintaining communications and power during transfer of horizontally moveable elevator cab | Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan +2 more | 1997-02-11 |
| 5310022 | Mechanical overspeed safety device | William G. Sheridan | 1994-05-10 |
| 5226508 | Disc brake for elevator drive sheave | Richard J. Ericson | 1993-07-13 |
| 4977982 | Elevator sheave brake safety | Louis Bialy, William G. Sheridan, Edward D. Reiskin | 1990-12-18 |