Intergral, single material container cap
First Claim
1. A cap, made from a single material, having a top surface, a cover adapted to fit the top surface, and a perimetric side wall configured to be fitted on an opening of a liquid container, with at least one liquid outlet for the exit of liquid from the liquid container and at least one air inlet, flush with the top surface of the cap, for the entrance of air into the container, comprisinga check valve configured to allow the entrance of air into the liquid container, and prevent the exit of the liquid from the liquid container;
- said check valve built into the cap and protruding inwardly from an inside of the top surface of the cap;
said check valve further comprising a tubular body with two ends, such that a first end is located in the at least one air inlet, and the second end opposite the first comprises contacting walls configured to close the tubular body when at rest;
said contacting walls further configured to separate and open the tubular body when said check valve in use or when vacuum is created inside the container;
the perimetric side wall containing threads configured to screw the cap to the opening of the liquid container;
wherein the cover, the check valve, the perimetric side wall, and the threads are an integral one-piece construction.
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Accused Products
Abstract
The present invention relates to an single piece integral cap, made from a single material, for consuming a liquid from a container. The cap has at least one hole for the exit of liquid from the container and an inlet for the entrance of air into the container. This air inlet incorporates a check valve that allows for the entrance of air but not the exit of liquid. This check valve is built into the body of the cap.
32 Citations
20 Claims
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1. A cap, made from a single material, having a top surface, a cover adapted to fit the top surface, and a perimetric side wall configured to be fitted on an opening of a liquid container, with at least one liquid outlet for the exit of liquid from the liquid container and at least one air inlet, flush with the top surface of the cap, for the entrance of air into the container, comprising
a check valve configured to allow the entrance of air into the liquid container, and prevent the exit of the liquid from the liquid container; - said check valve built into the cap and protruding inwardly from an inside of the top surface of the cap;
said check valve further comprising a tubular body with two ends, such that a first end is located in the at least one air inlet, and the second end opposite the first comprises contacting walls configured to close the tubular body when at rest;
said contacting walls further configured to separate and open the tubular body when said check valve in use or when vacuum is created inside the container;the perimetric side wall containing threads configured to screw the cap to the opening of the liquid container;
wherein the cover, the check valve, the perimetric side wall, and the threads are an integral one-piece construction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- said check valve built into the cap and protruding inwardly from an inside of the top surface of the cap;
Specification