Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368132 | Suspended elevator cab magnetic guidance to rails | Richard L. Hollowell | 1994-11-29 |
| 5322144 | Active control of elevator platform | Clement A. Skalski, Boris G. Traktovenko, Richard L. Hollowell | 1994-06-21 |
| 5308938 | Elevator active suspension system | Randall Keith Roberts, Richard L. Hollowell, Clement A. Skalski | 1994-05-03 |
| 5299662 | Linear motor elevator having hybrid roping and stationary primary | K. Narasimha Reddy | 1994-04-05 |
| 5294757 | Active vibration control system for an elevator, which reduces horizontal and rotational forces acting on the car | Clement A. Skalski, Boris G. Traktovenko, Richard L. Hollowell | 1994-03-15 |
| 5277276 | Compensating rope sheave tie down | Mukunda B. Pramanik | 1994-01-11 |