Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5809367 | Method of automatically controlling transfer voltage and fusing temperature in an electrophotographic printing apparatus | Ki-jae Do | 1998-09-15 |
| 5611412 | Elevator car hitch | Joseph Walker | 1997-03-18 |
| 5490577 | Flexible elevator hitch | — | 1996-02-13 |
| 5421433 | Elevator load-weighing at car hitch | — | 1995-06-06 |
| 5366044 | Bidirectional eddy current overspeed protection for elevators | Eric K. Jamieson, Breffni X. Baggot | 1994-11-22 |
| 5360085 | Elevator cab position sensing with reduced operating noise | Richard C. McCarthy | 1994-11-01 |
| 5343003 | Recalibration of hitch load weighing using dynamic tare | Eric K. Jamieson, Richard C. McCarthy | 1994-08-30 |
| 5307904 | Stopping of elevators in the up direction | — | 1994-05-03 |
| 5301773 | Positive terminal overspeed protection by rail grabbing | Eric K. Jamieson, Rudi Steger, Richard C. McCarthy | 1994-04-12 |
| 5238088 | Pit buffer assembly for high speed elevators | — | 1993-08-24 |
| 5223679 | Elevator drive motor to encoder connection having a flexible rod and a bellows coupling | — | 1993-06-29 |
| 5195616 | One to two stroke roped elevator pit buffers | John K. Salmon | 1993-03-23 |
| 5181586 | Noise and vibration reduction at elevator cab hitch | John K. Salmon | 1993-01-26 |
| 5172782 | Pivot mount of elevator load-weighing at car hitch | Eric K. Jamieson | 1992-12-22 |
| 5131504 | Elevator noise minimizer | John K. Salmon, Keith Worsley | 1992-07-21 |
| 5080201 | Diversion of airflow around an elevator counterweight | John K. Salmon, Joseph R. Faust | 1992-01-14 |
| 5046584 | Elevator occupant load weighing sensor mounting assembly | John K. Salmon | 1991-09-10 |
| 5018602 | Reduction of noise and vibration in an elevator car by selectively reducing air turbulence | John K. Salmon | 1991-05-28 |
| 4899852 | Elevator car mounting assembly | John K. Salmon | 1990-02-13 |
| 4548297 | Elevator car vibration control with friction damper | John K. Salmon | 1985-10-22 |