LEAK PROOF BOTTLE LID
A bottle with a lid mechanism to open and close both straw and air holes simultaneously. The preferred bottle features an external straw coupling which connects to both a mating internal straw coupling and an air hole coupling. Both the internal straw and air hole couplings preferably have spring-biased valves which simultaneously open to allow flow when the external straw coupling is connected to the bottle lid and simultaneously close to block flow when the external straw coupling is disconnected from the bottle lid. In this way, the bottle and bottle lid become leak proof when the external straw coupling is disconnected.
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This non-provisional patent application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 62/136,388 filed Mar. 20, 2015 and entitled “Spring Loaded Air Vent For Leak Proof Bottle Lid With Removable Straw”, the disclosure of which is hereby incorporated by reference in its entirety.
FIELD OF THE INVENTIONThe present invention relates to spill resistant water bottles.
BACKGROUND OF THE INVENTIONWater bottles with a straw are well known. Such water bottles usually require air holes built into their lids to work properly. Air holes are advantageous in lid design because they make it easier to draw fluid out of a bottle (by equalizing air pressure). The drawback to including air holes is that vented water bottles can get knocked over and create a mess when they spill through the air hole, straw or both. This can particularly be a problem if the user of the water bottle is a quadriplegic who cannot easily clean up the mess created by a spilled water bottle. Bussell's U.S. Pat. No. 6,082,583 discloses one attempt to create a water bottle for a quadriplegic. Bussell's water bottle features a segmented tube which bends the straw into a comfortable position for the quadriplegic. Nonetheless, the Bussell water bottle does not have a way of preventing water from spilling out if the water bottle gets knocked over.
Other patents and published patent applications disclose various mechanisms to prevent water bottles from spilling if they are knocked over. These patents and publications include Yoneoka's U.S. Pat. No. 7,097,065 (a pivoting cap is used to open straw and air holes), Noell's U.S. Pat. No. 7,311,231 (spring loaded shut off valve for straw hole), Chasteen's U.S. Published Application No. 2003/0213803 (hinged straw valve), Levy's U.S. Pat. No. 6,030,582 (hinged straw valve) and Panec's U.S. Pat. No. 6,135,311 (hinged straw valve). Nonetheless, none of these other patents and published patent applications provide a simple, easy-to-use mechanism for opening and closing both straw and air holes simultaneously.
BRIEF SUMMARY OF THE INVENTIONThe present invention provides a bottle with a mechanism to open and close both straw and air holes simultaneously. The preferred water bottle features an external straw coupling which connects to both a mating internal straw coupling and an air hole coupling. Both the internal straw and air hole couplings preferably have spring loaded valves which simultaneously open to allow flow when the external straw coupling is connected and simultaneously close to block flow when the external straw coupling is disconnected. In this way, the bottle and bottle lid become leak proof when the external straw coupling is disconnected.
Referring now to
Turning now to
As shown in
In addition to having a valve for the internal straw coupling 22, the present invention preferably also provides an air hole valve 31 (see,
As show in
To allow the air hole valve 31 to open, the plunger 34 includes a plunger tip 37 which protrudes out of the upper entrance 42 of air hole 40 as shown in
In one preferred embodiment, the air hole upper entrance 42 is 0.1″ in diameter, the tip 37 of the plunger is preferably formed in a hexagonal shape and the body 48 of the plunger is preferably formed in an octagonal shape (see,
An advantageous feature of the preferred embodiment of the present invention is that the straw hole and air hole are opened and closed simultaneously. Specifically, when the MNPT Nonvalved Coupler is snapped onto the PMHB Valved Coupler, the nipple 25 of the PMHB Valved Coupler is pressed downward to open fluid flow through the PMHB Valved Coupler at the same time the plunger tip 37 is pressed downward to open air flow through the air hole 40. Conversely, when the MNPT Nonvalved Coupler is disconnected from the PMHB Valved Coupler, the biasing spring in the PMHB Valved Coupler presses the nipple 25 upward to close fluid flow through the PMHB Valved Coupler at the same time the air hole spring 36 presses the stop cone 32 upward to close the top entrance 42 of the air hole. At the moment the MNPT Nonvalved Coupler is disconnected from the PMHB Valved Coupler, the bottle lid 30 becomes leak proof.
In the foregoing specification, the invention has been described with reference to specific preferred embodiments and methods. It will, however, be evident to those of skill in the art that various modifications and changes may be made without departing from the broader spirit and scope of the invention as set forth in the appended claims. For these reasons, the specification and drawings are, accordingly, to be regarded in an illustrative, rather than restrictive sense; the invention being limited only by the appended claims.
Claims
1. A leak-proof bottle assembly comprising:
- a bottle;
- a bottle lid with a straw hole and an air hole;
- an external straw coupling;
- an internal straw coupling inserted into said bottle lid; and, an air hole coupling inserted into said bottle lid;
- wherein air and fluid can pass through said lid when said external straw coupling is connected to said internal straw and air hole couplings but air and fluid are blocked from passing through said lid when said external straw coupling is disconnected from said internal straw and air hole couplings.
2. The leak-proof bottle assembly of claim 1 wherein said internal straw and air hole couplings both have valves.
3. The leak-proof bottle assembly of claim 2 wherein said internal straw and air hole coupling valves are spring biased.
4. The leak-proof bottle assembly of claim 2 wherein said internal straw and air hole coupling valves both open simultaneously when said external straw coupling is connected to them and close simultaneously when said external straw coupling is detached from them.
5. The leak-proof bottle assembly of claim 1 wherein said external straw coupling is attached to a straw and a segmented tube.
6. The leak-proof bottle assembly of claim 1 wherein said air hole coupling includes a plunger, stop cone and spring.
7. The leak-proof bottle assembly of claim 6 wherein said stop cone is placed on top of said plunger and said spring rests below said plunger.
8. The leak-proof bottle assembly of claim 7 wherein portions of said plunger adjacent to said stop cone are polygonal in shape.
9. The leak-proof bottle assembly of claim 1 wherein said external straw coupling includes an MNPT nonvalved coupler.
10. The leak-proof bottle assembly of claim 9 wherein a cap is attached to said MNPT nonvalved coupler to open said air hole.
11. The leak-proof bottle assembly of claim 1 wherein said internal straw coupling includes a PMHB valved coupler.
12. A leak-proof bottle assembly comprising:
- a bottle;
- a bottle lid with a straw hole and an air hole;
- an external straw coupling;
- an internal straw coupling with a spring-biased valve inserted into said bottle lid; and, an air hole coupling with a spring-biased valve inserted into said bottle lid;
- wherein said internal straw and air hole coupling valves open when said external straw coupling is connected to them and close when said external straw coupling is disconnected from them.
13. The leak-proof bottle assembly of claim 12 wherein said spring-biased valves each include a tip.
14. The leak-proof bottle assembly of claim 13 wherein said external straw coupling simultaneously presses down on the tips of the spring-biased internal straw and air hole coupling valves when the external straw coupling is connected to the internal straw and air hole couplings.
15. The leak-proof bottle assembly of claim 12 wherein said external straw coupling includes an MNPT nonvalved coupler.
16. The leak-proof bottle assembly of claim 12 wherein a cap is attached to said MNPT nonvalved coupler to open said air hole.
Type: Application
Filed: Jun 2, 2015
Publication Date: Sep 22, 2016
Applicant: FLEXIMUG LLC (Berkeley, CA)
Inventor: David Cardell (Berkeley, CA)
Application Number: 14/728,936