| Patent Number |
Title Of Patent |
Date Issued |
| 6523711 |
Automatic valved bottle cap for use with liquid containers |
February 25, 2003 |
| A sports bottle cap having a pressure differential valve is provided which allows water to flow out through the bottle cap only when the bottle is inverted and squeezed or alternatively a straw may be threaded through the pressure differential valve, thereby deactivating it, and attached |
| 6468435 |
Automatic valved filter assembly |
October 22, 2002 |
| The valved filter assembly of the present invention utilizes a bi-directional pressure differential valve in fluid communication with a filter body housed within a container, such as a bottle. This unique structure allows the user to dispense filtered fluid from a bottle only when th |
| 5840185 |
Sports bottle filter cartridge |
November 24, 1998 |
| Embodiments of a filter cartridge for a sports bottle are shown and described. Each embodiment has a member for containing or attaching to a filter media and having a means of securing the cartridge inside the bottle neck without requiring modification of the bottle or bottle cap. Th |
