Free flow filter bottle
AssigneeThe Coleman Company, Inc.
InventorsJun Wang, John Lian
Life of this patent
Estimating the term…
Abstract
A bottle is provided that incorporates a free flow filter that can passively filter water by the action of gravity as a user drinks from the bottle. The bottle uses an umbrella valve to vent air from the filter into the body of the bottle so that a continuous stream of filtered water is provided by the bottle as water is poured from the bottle. In an embodiment, the umbrella valve moves from a closed position to an open position when at least a threshold pressure is applied to a diaphragm of the valve. When in the open position, air may vent from the filter and into the body of the bottle.
Claims20
A bottle comprising:
- a filter core selectively engageable with the bottle;
- an umbrella valve engageable with the filter core;
- and
- wherein when liquid is poured from an opening in the bottle and a threshold pressure is applied to the umbrella valve, the umbrella valve vents air from the filter core into an interior of the bottle.
A bottle comprising:
- a lid selectively engageable with a body of the bottle;
- a filter core selectively couplable with the lid;
- an umbrella valve coupled to the filter core, the umbrella valve including a diaphragm, and
- wherein, when a pressure lower than a threshold pressure is applied to the diaphragm of the umbrella valve, the umbrella valve is configured to prevent air from venting from the filter core into the bottle.
A free flow filter water bottle, the bottle comprising:
- a body with an interior volume;
- a filter core, the filter core positioned and located in the interior volume of the bottle;
- and
- a valve including a diaphragm, the valve configured to impede a flow of air from the filter core into the interior of the bottle when the valve is in a closed position.
Dependencies are inferred from the claim text.