Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678409 | Passive three state electromagnetic motor/damper for controlling stirling refrigerator expanders | — | 1997-10-21 |
| 5655376 | Combination coolant pump/dynamic balancer for stirling refrigerators | — | 1997-08-12 |
| 5647219 | Cooling system using a pulse-tube expander | Alan A. Rattray, Carl S. Kirkconnell, Steven C. Soloski, Samuel C. Russo | 1997-07-15 |