Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4547029 | Self-locking electrical and mechanical connecting means and method of making same | Thomas W. Tolbert | 1985-10-15 |
| 4518018 | Reinforced formed hose | George T. Dunn, Chester L. Guiles | 1985-05-21 |
| 4490575 | Flexible hose with external sheathed electrical conductor | — | 1984-12-25 |
| 4479835 | Apparatus and method for forming wire reinforced helically fabricated tubing | Arthur R. Campbell | 1984-10-30 |
| 4427485 | Ultrasonically bonded helically fabricated tubing and apparatus and method for making same | Donald L. Johnson | 1984-01-24 |
| 4385018 | Method and apparatus for making insulated, reinforced flexible hose | — | 1983-05-24 |
| 4356284 | Thermoplastic compositions containing polyvinylidene fluoride and chlorinated polyethylene | Mahendra N. Desai, Roy A. Berman | 1982-10-26 |
| 4354051 | Electrical current-carrying flexible hose and method of making same | — | 1982-10-12 |
| 4334121 | Electrical conduit including helical grounding and reinforcing elements | — | 1982-06-08 |
| 4328392 | Welded-turn helical electrical conduit with electrically conductive grounding element | — | 1982-05-04 |
| 4326561 | Double-channel electrical conduit | — | 1982-04-27 |
| 4304266 | Smooth bore flexible hose | Marvin A. Koerber | 1981-12-08 |
| 4302266 | Method for making high pressure hose | — | 1981-11-24 |
| 4277640 | Electric current-carrying hose assembly having end fittings enclosing an electrical switch and/or a circuit-breaking device | Marvin A. Koerber, Henry K. Wills | 1981-07-07 |
| 4259991 | High pressure hose construction and method of and apparatus for making the same | — | 1981-04-07 |
| 4224463 | Dual wire hose | Marvin A. Koerber | 1980-09-23 |
| 4213811 | Continuously advancing mandrel | Marcus A. Hall | 1980-07-22 |
| 4196755 | Reinforced flexible duct with integral molded liner | Marvin A. Koerber | 1980-04-08 |