Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5830312 | Butt fusion apparatus with clamping jaws for clamping pipe to be fused without interference between the clamps and the pipe | James Callen Weimer, Gary Wayne Gunno | 1998-11-03 |
| 5743992 | Butt fusion apparatus with constant pressure accumulator | James Callen Weimer, Gary Wayne Gunno | 1998-04-28 |
| 5692285 | Butt fusion apparatus with means for changing quickly between straight pipe and pipe fitting attachment positions, and method | James Collen Weimer, Gary Wayne Gunno | 1997-12-02 |
| 4660865 | Method and apparatus for coupling a connector to thermoplastic pipe | — | 1987-04-28 |
| 4248460 | Plastic pipe fitting | Coyt E. Murray | 1981-02-03 |