Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637092 | Method and apparatus for winding a helical pipe from its inside | — | 2003-10-28 |
| 5660912 | Plastic profiled strip forming helically wound tube using hinged flap for jointing | — | 1997-08-26 |
| 5595800 | Helically wound reinforced ribbed composite structure | — | 1997-01-21 |
| 5468322 | Loop machine for helically winding strip | — | 1995-11-21 |
| 5074943 | Slip control for helically wound pipes | — | 1991-12-24 |
| 4995929 | Method of protecting conduits including helically winding a strip | — | 1991-02-26 |
| 4977931 | Method of producing reinforced ribbed tubes | — | 1990-12-18 |
| 4687690 | Method of and means for forming and sealing helically wound tubes | — | 1987-08-18 |
| 4616495 | Helically-formed pipe winding machine | — | 1986-10-14 |
| 4566496 | Tubular plastics objects | David E. Mominee, Gilbert W. Vance | 1986-01-28 |
| 4438643 | Machine for forming tubes from a strip | David E. Mominee, Gilbert W. Vance | 1984-03-27 |
| 4337564 | Machine and method for forming tubes from a strip | David E. Mominee, Gilbert W. Vance | 1982-07-06 |
| 4273286 | Conduit for drip irrigation systems | — | 1981-06-16 |