Valve for non-spill cup
First Claim
1. A valve in combination with a cap fitted to a spill resistant cup to retain liquid in the cup, the cap including a spout to dispense the liquid and a rigid, generally cylindrical and hollow valve mount extending downward from the spout to engage with the valve, the valve comprising:
- a cylindrical valve tower having an interior bore for the passage of liquid and extending from a valve base and upward into the interior of the valve mount so that an outer circumferential surface of the valve tower frictionally engages an interior circumferential surface of the valve mount to sealingly engage the valve mount,an outer valve wall, having a height greater than a width of the wall, extending from the valve base circumferential to the valve tower to form a circumferential recess for receiving the valve mount so that the outer surface of the valve tower and an inner circumferential surface of the outer valve wall frictionally engage the inner surface of the valve mount and an outer circumferential surface of the valve mount,an oval valve face sloping across an upper end of the valve tower bore from a higher first point on a first side of the valve tower and to a lower second point on a diametrically opposite second side of the valve tower, anda valve mechanism located in the valve face for controlling a flow of the liquid through the valve mechanism dependent upon a pressure differential across the valve face, includinga normally closed valve slit extending through the valve face and extending across the valve face from near the first side of the valve tower to near the second side of the valve tower.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve for use with a cap for a spill resistant cup, the cap including a spout to dispense the liquid and a valve mount extending from the spout to engage with the valve. The valve includes a generally cylindrical valve tower extending from a valve base to sealingly engage the valve mount and having an interior bore for the passage of liquid and a valve face sloping across an upper end of the valve tower bore from a higher first point on a first side of the valve tower and to a lower second point on a diametrically opposite second side of the valve tower. A valve mechanism is located in the valve face for controlling a flow of the liquid through the valve mechanism dependent upon a pressure differential across the valve face. The valve mechanism is a valve slit extending through the valve face perpendicular to a mouth opening in the spout and is S-shaped or straight.
128 Citations
17 Claims
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1. A valve in combination with a cap fitted to a spill resistant cup to retain liquid in the cup, the cap including a spout to dispense the liquid and a rigid, generally cylindrical and hollow valve mount extending downward from the spout to engage with the valve, the valve comprising:
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a cylindrical valve tower having an interior bore for the passage of liquid and extending from a valve base and upward into the interior of the valve mount so that an outer circumferential surface of the valve tower frictionally engages an interior circumferential surface of the valve mount to sealingly engage the valve mount, an outer valve wall, having a height greater than a width of the wall, extending from the valve base circumferential to the valve tower to form a circumferential recess for receiving the valve mount so that the outer surface of the valve tower and an inner circumferential surface of the outer valve wall frictionally engage the inner surface of the valve mount and an outer circumferential surface of the valve mount, an oval valve face sloping across an upper end of the valve tower bore from a higher first point on a first side of the valve tower and to a lower second point on a diametrically opposite second side of the valve tower, and a valve mechanism located in the valve face for controlling a flow of the liquid through the valve mechanism dependent upon a pressure differential across the valve face, including a normally closed valve slit extending through the valve face and extending across the valve face from near the first side of the valve tower to near the second side of the valve tower. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A valve in combination with a cap releasably secured to a spill resistant cup for retaining liquid therein, the cap including a spout to dispense the liquid and a rigid, generally cylindrical and hollow valve mount extending inwardly from the spout and engaging with the valve, the cap further includes a second mount spaced apart from the spout, the valve comprising:
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a cylindrical valve tower having an interior bore facilitating passage of liquid and extending from a valve base and outward into an interior of the valve mount such that an outer circumferential surface of the valve tower frictionally engages with an interior circumferential surface of the valve mount to facilitate the valve tower sealingly engaging with the valve mount; an outer valve wall, having a height greater than a width of the wall, extending from the valve base circumferential about the valve tower and defining a circumferential recess therebetween for receiving the valve mount, and the outer valve wall sealingly engaging an outer circumferential surface of the valve mount and sandwiching a leading circumferential edge of the valve mount therebetween so that the outer surface of the valve tower and an inner circumferential surface of the outer valve wall respectively frictionally engage with an outer circumferential surface of the valve mount and the inner surface of the valve mount; an inner most end surface of the valve tower having an inclined oval valve face sloping across from a higher first point on a first side of the valve tower and to a lower second point on a diametrically opposite second side of the valve tower;
the inclined valve face having a valve mechanism formed therein for controlling a flow of the liquid through the valve mechanism dependent upon a pressure differential across the valve face, and the valve mechanism comprising a normally closed valve slit across the inclined valve face; anda second tower spaced apart from the valve tower and the second tower having a circumferential vent wall which receives and surrounds the second mount.
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17. A valve in combination with a cap releasably secured to a spill resistant cup for retaining liquid therein, the cap including a spout to dispense the liquid and a rigid, generally cylindrical and hollow valve mount extending inwardly from the spout and engaging with the valve, the valve comprising:
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a cylindrical valve tower having an interior bore facilitating passage of liquid and extending from a valve base and outward into an interior of the valve mount such that an outer circumferential surface of the valve tower frictionally engages with an interior circumferential surface of the valve mount to facilitate the valve tower sealingly engaging with the valve mount; an outer valve wall, having a height greater than a width of the wall, extending from the valve base circumferential about the valve tower and defining a circumferential recess therebetween for receiving the valve mount, and the outer valve wall sealingly engaging an outer circumferential surface of the valve mount and sandwiching a leading circumferential edge of the valve mount therebetween so that the outer surface of the valve tower and an inner circumferential surface of the outer valve wall respectively frictionally engage with an outer circumferential surface of the valve mount and the inner surface of the valve mount; and an inner most end surface of the valve tower having an inclined oval valve face sloping across from a higher first point on a first side of the valve tower and to a lower second point on a diametrically opposite second side of the valve tower;
the inclined valve face having a valve mechanism formed therein for controlling a flow of the liquid through the valve mechanism dependent upon a pressure differential across the valve face, and the valve mechanism comprising a normally closed valve slit across the inclined valve face.
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Specification