A capillary beverage cup comprises a continuous interior corner extending from a lip interface into an inner cavity of the capillary beverage cup, the continuous interior corner comprising an acute included angle which tapers continuously as the interior corner approaches the lip interface. The capi
A capillary beverage cup comprises a continuous interior corner extending from a lip interface into an inner cavity of the capillary beverage cup, the continuous interior corner comprising an acute included angle which tapers continuously as the interior corner approaches the lip interface. The capillary beverage cup provides a continuous capillary force on the liquid contained by the cup, allowing for complete withdrawal of fluid from the cup in low or near zero gravity environments, while enabling the cup to have an open top, allowing for aromatics to be experienced by a user while drinking with reduced concerns of spilling or release free-floating spheres of liquid in the low-gravity environment.
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1. A capillary beverage cup, comprising: a continuous interior corner extending from a lip interface into an inner cavity of the capillary beverage cup, the continuous interior corner comprising an acute included angle which tapers continuously as the interior corner approaches the lip interface,the
1. A capillary beverage cup, comprising: a continuous interior corner extending from a lip interface into an inner cavity of the capillary beverage cup, the continuous interior corner comprising an acute included angle which tapers continuously as the interior corner approaches the lip interface,the lip interface extending above a rim of the capillary beverage cup, forming a cusp-shaped channel that is continuous with the interior corner, the lip interface comprising a right lip interface and a left lip interface wherein the right lip interface and left lip interface each have a rounded, concave shape;an open top; anda lower portion comprising a rounded, low-curvature region,wherein a characteristic dimension of the open top is smaller than a characteristic dimension of a body radius of the capillary beverage cup,wherein the continuous interior corner does not extend into the rounded, low-curvature region, andwherein the lower portion further comprises: a left front-bottom face;a right front-bottom face;a left rear-bottom face; anda right rear-bottom face, whereinthe rounded, low-curvature region includes the left rear-bottom face and the right rear-bottom face, wherein the continuous interior corner extends into an interface between the left front-bottom face and right front-bottom face, and wherein the left rear-bottom face and the right rear-bottom face taper as they approach a base of the capillary beverage cup. 2. The capillary beverage cup of claim 1, where the continuous interior corner comprises: an interior angle gradient configured to provide continuous capillary pressure on liquids with a contact angle less than 70°. 3. The capillary beverage cup of claim 2, wherein the continuous interior corner increasingly satisfies a critical geometric wetting condition as the continuous interior corner approaches the lip interface, and wherein the continuous interior corner seamlessly transitions into the cusp-shaped channel. 4. The capillary beverage cup of claim 1, wherein the cusp-shaped channel extends to an edge of the lip interface. 5. The capillary beverage cup of claim 1, wherein the right lip interface and left lip interface flank the cusp-shaped channel. 6. The capillary beverage cup of claim 5, wherein the right lip interface and left lip interface comprise a rounded, concave interface for a user's lips. 7. The capillary beverage cup of claim 1, further comprising: an upper right face;an upper left face; and whereinthe upper right face and upper left face intersect at a tapered front face of the capillary beverage cup, forming an upper portion of the continuous interior corner. 8. The capillary beverage cup of claim 7, wherein the upper right face and upper left face intersect at a rear face of the capillary beverage cup forming a circular profile at a rear portion of the capillary beverage cup. 9. The capillary beverage cup of claim 1, wherein the inner cavity of the capillary beverage cup comprises a hydrophilic coating. 10. The capillary beverage cup of claim 1, wherein the inner cavity of the capillary beverage cup comprises a textured and/or hemi-porous surface. 11. The capillary beverage cup of claim 1, wherein the left rear-bottom face and the right rear-bottom face taper symmetrically as they approach the base, forming two sides of a semicubical parabola. 12. A capillary beverage cup, comprising: a continuous interior corner extending from a lip interface into an inner cavity of the capillary beverage cup, the continuous interior corner comprising an acute included angle which tapers continuously as the interior corner approaches the lip interface,the lip interface extending above a rim of the capillary beverage cup, forming a cusp-shaped channel that is continuous with the interior corner, the lip interface comprising a right lip interface and a left lip interface wherein the right lip interface and left lip interface each have a rounded, concave shape;an open top;an upper right face; andan upper left face,wherein a characteristic dimension of the open top is smaller than a characteristic dimension of a body radius of the capillary beverage cup,wherein the upper right face and upper left face intersect at a tapered front face of the capillary beverage cup, forming an upper portion of the continuous interior corner,wherein the upper right face and upper left face intersect at a rear face of the capillary beverage cup forming a circular profile at a rear portion of the capillary beverage cup,wherein the upper right face and upper left face taper towards the open top of the capillary beverage cup forming a rim around the open top, and wherein the upper right face and upper left face demonstrate a sigmoidal profile when viewed from the front or rear, tapering towards the rim first as a concave-down curve, gradually transitioning to a concave-up curve. 13. A capillary beverage cup usable to provide a liquid for drinking in a low-gravity environment, the capillary beverage cup comprising: an open top;a lower portion comprising a rounded, low-curvature region;an upper portion comprising a continuous interior corner extending into an inner cavity of the capillary beverage cup but not into the rounded, low-curvature region, the continuous interior corner comprising an acute included angle which expands as the continuous interior corner extends into the inner cavity, wherein the continuous interior corner is configured to apply a continuous capillary gradient on a liquid contained in the inner cavity; anda lip interface forming a cusp-shaped channel that is continuous with the continuous interior corner; the cusp-shaped channel shaped to supply a rivulet of liquid at the lip interface regardless of a quantity of liquid contained in the inner cavity, the lip interface extending above a rim of the capillary beverage cup, the lip interface comprising a right lip interface and a left lip interface wherein the right lip interface and left lip interface each have a rounded, concave shape. 14. The capillary beverage cup of claim 13, wherein a ratio of a height of the lower portion to a height of the upper portion is approximately 1:1. 15. A capillary beverage cup usable to provide a liquid for drinking, the capillary beverage cup comprising: an open top;a continuous interior corner extending from a lip interface into an inner cavity of the capillary beverage cup, the continuous interior corner comprising an acute included angle which tapers continuously as the interior corner approaches the lip interface at an angle gradient configured to provide continuous capillary pressure on liquids with a contact angle less than 70° and wherein the lip interface forms a cusp-shaped channel that is continuous with the continuous interior corner and extends to an edge of the lip interface, the lip interface extending above a rim of the capillary beverage cup, the lip interface comprising a right lip interface and a left lip interface wherein the right lip interface and left lip interface each have a rounded, concave shape;an upper right face and an upper left face configured to intersect at a tapered front face of the capillary beverage cup, forming an upper portion of the continuous interior corner; anda lower portion, comprising: a left front-bottom face;a right front-bottom face;a left rear-bottom face;a right rear-bottom face; and whereina rounded, low-curvature region includes the left rear-bottom face and the right rear-bottom face, and further wherein the continuous interior corner extends into an interface between the left front-bottom face and right front-bottom face but does not extend into the rounded, low-curvature region.
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Hoffman,Wesley P.; Wapner,Phillip G., Air-admittance device and method for making same.
Dixon ; Sr. Lester A. (5731 Castle Dr. Huntington Beach CA 92649) Dixon ; Jr. Lester A. (5731 Castle Dr. Huntington Beach CA 92649), Anti-spill drinking cup.
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