Dispensing cap for a container
First Claim
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1. A dispensing cap for a container, the dispensing cap comprising:
- a generally cylindrically-shaped body portion having a closed top end and an open bottom end, the closed top end comprising a diaphragm portion;
a generally cylindrically-shaped inner wall axially extending from the closed top end towards the open bottom end of the body portion and defining a chamber for holding an additive substance, wherein the chamber has an opening towards the open bottom end of the body portion;
the body portion and the inner wall defining a receptacle therebetween for receiving a mouth of the container from the open bottom end of the body portion and sealing the mouth of the container;
a plunger axially extending from the diaphragm portion towards the opening of the chamber, wherein the diaphragm and the plunger have a closed position and an open position; and
a chamber closure member for sealing the chamber'"'"'s opening attached to the plunger, wherein the chamber closure member is a disc-like structure having a sealing surface along its periphery and the inner wall has a corresponding sealing surface that cooperates with the sealing surface of the chamber closure member for sealing the chamber when the diaphragm and the plunger are in the closed position,further wherein the chamber closure member has a top side that faces the closed top end of the body portion and a bottom side that faces away from the chamber, and further wherein the chamber closure member is provided with stress-relieving depressions on the top side, thereby when an activating force is applied to the diaphragm and the plunger is being moved from the closed position to the open position, the stress-relieving depressions enable the chamber closure member to elastically collapse and facilitate unsealing of the chamber closure member from the inner wall,wherein the body portion, the closed top end, the plunger, and the inner wall are integrally formed.
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Accused Products
Abstract
A dispensing cap for a container includes a body portion and an integrally formed chamber for holding an additive substance. The body portion includes a closed top end and an inner wall that defines the chamber whose open end is sealed by a chamber closure member. The closed top end includes a diaphragm and a plunger extends axially from the diaphragm within the chamber for unsealing the chamber closure member. The body portion, the closed top end, the plunger, and the inner wall are integrally formed in one-piece.
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Citations
22 Claims
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1. A dispensing cap for a container, the dispensing cap comprising:
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a generally cylindrically-shaped body portion having a closed top end and an open bottom end, the closed top end comprising a diaphragm portion; a generally cylindrically-shaped inner wall axially extending from the closed top end towards the open bottom end of the body portion and defining a chamber for holding an additive substance, wherein the chamber has an opening towards the open bottom end of the body portion; the body portion and the inner wall defining a receptacle therebetween for receiving a mouth of the container from the open bottom end of the body portion and sealing the mouth of the container; a plunger axially extending from the diaphragm portion towards the opening of the chamber, wherein the diaphragm and the plunger have a closed position and an open position; and a chamber closure member for sealing the chamber'"'"'s opening attached to the plunger, wherein the chamber closure member is a disc-like structure having a sealing surface along its periphery and the inner wall has a corresponding sealing surface that cooperates with the sealing surface of the chamber closure member for sealing the chamber when the diaphragm and the plunger are in the closed position, further wherein the chamber closure member has a top side that faces the closed top end of the body portion and a bottom side that faces away from the chamber, and further wherein the chamber closure member is provided with stress-relieving depressions on the top side, thereby when an activating force is applied to the diaphragm and the plunger is being moved from the closed position to the open position, the stress-relieving depressions enable the chamber closure member to elastically collapse and facilitate unsealing of the chamber closure member from the inner wall, wherein the body portion, the closed top end, the plunger, and the inner wall are integrally formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A dispensing cap for a container, the dispensing cap comprising:
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a generally cylindrically-shaped body portion having a closed top end and an open bottom end, the closed top end comprising a diaphragm portion; a generally cylindrically-shaped inner wall axially extending from the closed top end towards the open bottom end of the body portion and defining a chamber, wherein the chamber has an opening towards the open bottom end of the body portion; a quantity of an additive substance provided in the chamber; the body portion and the inner wall defining a receptacle therebetween for receiving a mouth of the container from the open bottom end of the body portion and sealing the mouth of the container; a plunger axially extending from the diaphragm portion towards the opening of the chamber, the diaphragm and the plunger having a closed position and an open position, wherein the diaphragm and the plunger are in the closed position; and a chamber closure member attached to the plunger and sealing the opening of the chamber, wherein the chamber closure member is a disc-like structure having a sealing surface along its periphery and the inner wall has a corresponding sealing surface that cooperates with the sealing surface of the chamber closure member for sealing the chamber when the diaphragm and the plunger are in the closed position, further wherein the chamber closure member has a top side that faces the closed top end of the body portion and a bottom side that faces away from the chamber, and further wherein the chamber closure member is provided with stress-relieving depressions on the top side, thereby when an activating force is applied to the diaphragm and the plunger is being moved from the closed position to the open position, the stress-relieving depressions enable the chamber closure member to elastically collapse and facilitate unsealing of the chamber closure member from the inner wall, wherein the body portion, the closed top end, the plunger, and the inner wall are integrally formed. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification