Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7032628 | Mobile prepressurized diaphragm type fluid storage tank | Larry T. Guillemette | 2006-04-25 |
| 5691406 | Universal EPDM/butyl compound for use as an elastomeric barrier in water storage and treatment systems and the like | Julian Mitchel | 1997-11-25 |
| 5386925 | Expansion tank | — | 1995-02-07 |
| 5295502 | Non-refillable valve | — | 1994-03-22 |
| 4921004 | Piercing surge regulator valve and apparatus | Robert H. Jernberg | 1990-05-01 |
| 4836409 | Integral diaphragm-liner bladder for hydropneumatic tank | — | 1989-06-06 |
| 4555253 | Gas-liquid vortex separator-eliminator | Robert Hull | 1985-11-26 |
| 4475932 | Gas-liquid vortex separator-eliminator | Robert Hull | 1984-10-09 |
| 4313400 | Lined metal tank with heat shield, indirect fired water heater and method of making same | Robert C. Walker | 1982-02-02 |
| 4299248 | Diaphragm valve air vent device for water systems | Bernard Becker, John K. Bowman | 1981-11-10 |
| 4241843 | Lined metal tank with heat shield and method of making same | Robert C. Walker | 1980-12-30 |