Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876871 | Flexible hardroll mandrel assembly for sleeving peripherally located heat exchanger tubes | Robert D. Senger | 1989-10-31 |
| 4856337 | Apparatus and method for providing a combined ultrasonic and eddy current inspection of a tube | Michael J. Metala, William G. Clark, Jr., Warren R. Junker, Lee W. Burtner, Harold P. Johnson +2 more | 1989-08-15 |
| 4829648 | Apparatus and method for simultaneously loading a reinforcing sleeve and mandrel into a tube | William E. Pirl, Annette M. Costlow | 1989-05-16 |