Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5799351 | Swimming pool cleaner with vibratory power | Dieter J. Rief, Herman E. Frentzel | 1998-09-01 |
| 5797156 | Vibratory cleaner and method | — | 1998-08-25 |
| 5740576 | Device for dislodging a submersible swimming pool cleaner | Brian Phillipson | 1998-04-21 |
| 5664275 | Vibratory oscillator swimming pool cleaner employing means for facilitating self starting and for avoiding clogging | — | 1997-09-09 |
| D373230 | Submersible self-propelled pool cleaner | Brian Phillipson, Mark J. Ciesko, Spencer Murrell | 1996-08-27 |
| 5445396 | Nestable dolly construction | — | 1995-08-29 |
| 5404607 | Self-propelled submersible suction cleaner | — | 1995-04-11 |
| 5386607 | Ground engaging means for a submersible cleaning device | — | 1995-02-07 |
| 5371910 | Sliding oscillator seal for submersible suction cleaner | — | 1994-12-13 |
| 5303444 | Rigid skirt for bristles of submersible suction cleaner | — | 1994-04-19 |
| 5285547 | Internal by-pass valve for submersible suction cleaner | — | 1994-02-15 |
| 5274868 | Elevation limiter for submersible suction cleaner | — | 1994-01-04 |
| 5261287 | Positive engagement clutch for a submersible cleaning device | — | 1993-11-16 |
| 5259082 | Mechanism for dislodging a submersible cleaning device from a surface | — | 1993-11-09 |
| 5259258 | Friction clutch drive for a submersible cleaning device | — | 1993-11-09 |