Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9719569 | Brake for electric motor | Kyle W. Rogers, Daryl J. Marvin | 2017-08-01 |
| 9688512 | Elevator brake | Adrian D. West, Justin Billard, Harold Terry, Daryl J. Marvin | 2017-06-27 |
| 9663327 | Elevator braking system | Harold Terry, Leandre Adifon, Richard N. Fargo, David J. Lanesey, Anthony Cooney +3 more | 2017-05-30 |
| 9469505 | Sheet metal guide rail for an elevator system | Richard N. Fargo, Jamie A. Rivera | 2016-10-18 |
| 9457994 | Method of assembling an elevator machine frame | Stephen R. Nichols, Patricia L. Driesch, Pawel Witczak, Benjamin J. Watson | 2016-10-04 |
| 9376295 | Elevator brake device including permanent magnet bias to apply a braking force | Wojciech Szelag | 2016-06-28 |
| 9371873 | Permanent magnet centering system for brake | Robert A. Wheeler | 2016-06-21 |
| 9362037 | Magnetic device for controlling door movement and method thereof | Guohong Hu | 2016-06-07 |
| 9193565 | Roller guide with speed dependent stiffness | — | 2015-11-24 |
| 9120644 | Braking device | Benjamin J. Watson | 2015-09-01 |
| 8922074 | Elevator machine motor and drive and cooling thereof | Mikhail B. Gorbounov, Vladimir Blasko, Daryl J. Marvin, William A. Veronesi, Igor I. Fedchenia +1 more | 2014-12-30 |
| 8839911 | Elevator machine frame with noise reducing configuration | James L. Hubbard, Stephen R. Nichols, Bruce W. Horne, Arthur Blanc | 2014-09-23 |
| 8776953 | Magnetic elevator door coupler | Hakki Han, David J. Lanesey, Pawel Witczak | 2014-07-15 |
| 8631907 | Elevator machine frame | Stephen R. Nichols, Patricia L. Driesch, Pawel Witczak, Benjamin J. Watson | 2014-01-21 |
| 8631917 | Elevator brake with magneto-rheological fluid | Wojciech Szelag | 2014-01-21 |
| 7124495 | Method for making an electric motor | Jacek F. Gieras | 2006-10-24 |
| 6952068 | Fabricated components of transverse flux electric motors | Jacek F. Gieras | 2005-10-04 |
| 6713922 | Integrally skewed permanent magnet for use in an electric machine | Paul D. Wagner | 2004-03-30 |
| 6267205 | Magnetic guidance for an elevator rope | Pedro S. Baranda | 2001-07-31 |
| 5949036 | Double linear motor and elevator doors using same | Thomas M. Kowalczyk | 1999-09-07 |
| 5821656 | Magnetic bearing with reduced control-flux-induced rotor loss | Roy S. Colby | 1998-10-13 |
| 5808246 | Triac drive for three-phase line-powered linear induction motor elevator door operator | Richard E. Peruggi, Thomas M. McHugh, Edward E. Ahigian, Jerome F. Jaminet, Thomas He +3 more | 1998-09-15 |
| 5736693 | Elevator door drive using dual secondary linear induction motor | Jerome F. Jaminet, Thomas M. Kowalczyk, Edward E. Ahigian, Richard E. Kulak, Thomas M. McHugh +3 more | 1998-04-07 |
| 5612518 | Linear induction motor door drive assembly for elevators | Jerome F. Jaminet, Frank Guliuzza, Jr., Thomas M. McHugh, Edward E. Ahigian, Thomas He +4 more | 1997-03-18 |
| 5613188 | Interlaced conductor/back-iron secondary for induction motors | Robin Mihekun Miller, John L. Kettle | 1997-03-18 |