1. Field of the Invention
This invention is in the field of screw cap closures for bottles, particularly beverage bottles designed to hold beverages for athletic or recreational use.
2. Description of the Related Art
Various caps for beverage containers are known. In particular, for containers such as water bottles intended for use outside the home, such as by athletes, campers, hikers, and the like, it is desirable to provide a cap for the container that in one mode acts to prevent the beverage from accidentally spilling, while in another mode allows the user to drink directly from the container.
Here, a cap for a beverage container with a threaded neck, such as a water bottle, is provided that uses a unique rotating ball design to function as a valve. The ball, which may be a substantially solid ball, often made of plastic, often between about 0.5″ to 2″ in diameter, with a central fluid passage, will usually be embedded in a substantially cylindrical hollow body (also often made of plastic) with inner screw threads, configured to screw onto the neck of a beverage bottle. The top part of the hollow body will have a hemispherical central depression configured to hold the rotating ball in place, while allowing the ball to rotate about its axis (here two oppositely disposed pivot shafts). In one ball pivot angle, the ball's central fluid passage will be disposed above a body fluid so that fluids from the beverage container may travel through the body fluid port, up through the central opening, and often into the mouth of a user. At other ball pivot angles, the surface of the ball passes over the body fluid port, thus substantially preventing fluids from the beverage container from exiting the container.
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In some embodiments, the invention may comprise a valved cap (100) for a beverage container (102). This valved cap will generally comprise a substantially cylindrical hollow body (110), often made of plastic, with a substantially closed top (112), and an open bottom (114).
This body will often have a substantially closed top with a roughly hemispherical central depression (116) (configured to relatively snugly receive the rotating spherical valve (200) described below. This depression will often have with a body fluid port (118) and two oppositely disposed pivot shaft recesses (120), (122).
The cap will also comprise a pivoting spherical valve (200) (often referred to informally as a “ball), comprising a substantially spherical body comprising a substantially solid interior (202). This ball will often be made of plastic as well. The pivoting spherical valve will usually have a hollow or open central fluid passage (204), as well as a surface with two oppositely disposed pivot shafts (206), (208). The pivoting spherical valve will also generally have an upper (210) and a lower (212) valve fluid port connecting to the central fluid passage (204), as well as protruding mouth bib (214) disposed within 10 degrees of the upper valve fluid port (210), and at least one detent (216) disposed within 30 degrees of the upper valve fluid port (210). Here degrees are measured from the center of the “ball”.
As previously discussed, this pivoting spherical valve (200) will mounted within the hemispherical central depression (116), usually using the two oppositely disposed pivot shafts (206), (208), snapped the “ball” into place in the body via two oppositely disposed pivot shaft recesses (120), (122). As a result, the pivoting spherical valve (200) may pivot around its pivot shafts (206), (208), yet remain trapped in the hollow body (110) by mechanical force exerted by the two oppositely disposed pivot shaft recesses (206), (208).
In use, and when attached to a beverage container (102), when the pivoting spherical valve (200) is at a drinking pivot angle (218) (all figures show this angle), the pivoting spherical valve (200) will be positioned so that fluid may pass from the container, through the body fluid port (118), through the lower valve fluid port (212), through the central fluid passage (204), and out the upper valve fluid port (212). The fluid may flow into various receptacles, including a cup or often even directly into the user's mouth.
To facilitate drinking directly by mouth, the “ball” portion of the cap will often optionally have a protruding mouth bib (214) configured to help guide the passage of fluid into the mouth of a user. This bib can also be used to help open and shut the valve as well.
To help keep the valve in an open (beverage flow permitting) position when this is desired, the “ball” may be configured so that at a drinking pivot angle (218), at least one detent (216) prevents further pivoting of the pivoting spherical valve (200) in one direction.
The valve also has a plurality of “shut” positions as well. Here at a plurality of non-drinking pivot angles (222), the pivoting spherical valve (200) will be positioned so that the passage of fluid from said body fluid port (118) is blocked by the surface of the substantially spherical body of said pivoting spherical valve (200). This prevents fluid from passing from the body fluid port (118), through the lower valve fluid port (212), and through said central fluid passage (204).
As previously discussed, in some embodiments, the interior of said substantially cylindrical hollow body (110) has a screw thread (124) configured to allow the cap (100) to be securely screwed onto the screw threaded neck of a beverage container (102).
Further, in some embodiments, the cap's substantially cylindrical hollow body (110) may further comprises an exterior loop (126) configured to allow a user (usually when the valved cap is attached to a beverage container (102)), to hold the combination valved cap and beverage container with their fingers, or to attach the combination valved cap and beverage container to a hook (104).
In some embodiments, the pivot shaft recesses (120), (122) may be at least partially disposed within the hemispherical central depression (116). Here often at least one pivot shaft recess (120) and/or (122) may be configured with a passage outside the hemispherical central depression (124), and a pivot shaft recess constriction (126). As a result, after the pivoting spherical valve (200) is snapped into place by the pivot shafts (206), (208), this at least one pivot shaft recess constriction (126) can then securely trap the pivoting spherical valve (200) inside the hemispherical central depression (116) in the hollow body (110).
As previously discussed, in some embodiments, the hemispherical central depression (116) of the cap body may additionally have a recess or tab (117) configured to act to block detent (216) from rotating further into the hemispherical central depression, at least at the drinking angle.
This application claims the priority benefit of U.S. provisional patent application 61/829,164 “VALVED CAP FOR BEVERAGE CONTAINERS”, inventor Michael Hung, filed May 30, 2013; this application is also a continuation in part of US design patent application Ser. No. 29/456,393 “VALVED CAP FOR BEVERAGE CONTAINERS”, inventor Michael Hung, filed May 30, 2013; the contents of both applications are incorporated herein by reference.
Number | Date | Country | |
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61829164 | May 2013 | US |
Number | Date | Country | |
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Parent | 29456393 | May 2013 | US |
Child | 14246058 | US |