Closure having rotatable spout and axially movable stem
First Claim
Patent Images
1. A closure for a container having an opening, said closure comprising:
- a cap including a cap top, a container-engaging member, an open sleeve extending upwardly from said cap top, and a stem guide;
a spout rotatably engaging said sleeve, said spout including a spout top including an outer spout skirt depending from said spout top and rotatably engaging said sleeve, and an inner spout skirt depending from said spout top; and
a stem including an outwardly extending spout-engaging member, and an outwardly extending cap-engaging member, said spout engaging member engaging said inner spout skirt for helical motion with respect to said inner spout skirt, said cap-engaging member engaging said stem guide for axial motion with respect to said sleeve.
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Abstract
A closure for a container having a foil or membrane sealed opening. The closure includes a cap, a spout and a stem. The stem includes a downwardly extending piercing structure adapted for piercing the foil or membrane of the container upon rotation of the spout relative to the cap.
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Citations
29 Claims
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1. A closure for a container having an opening, said closure comprising:
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a cap including a cap top, a container-engaging member, an open sleeve extending upwardly from said cap top, and a stem guide;
a spout rotatably engaging said sleeve, said spout including a spout top including an outer spout skirt depending from said spout top and rotatably engaging said sleeve, and an inner spout skirt depending from said spout top; and
a stem including an outwardly extending spout-engaging member, and an outwardly extending cap-engaging member, said spout engaging member engaging said inner spout skirt for helical motion with respect to said inner spout skirt, said cap-engaging member engaging said stem guide for axial motion with respect to said sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A closure for a container, said closure comprising:
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a cap including a cap top having an inwardly extending thread adapted to detachably engage the container, an open sleeve extending upwardly from said cap top, and a stem guide extending along an internal surface of said sleeve;
a spout rotatably engaging said sleeve, said spout including a spout top including an outer spout skirt depending from said spout top radially outward of said sleeve and rotatably engaging said sleeve, and an inner spout skirt depending from said spout top radially within said sleeve; and
a stem including a body positioned radially within said inner spout skirt, an outwardly extending spout-engaging thread, and an outwardly extending cap-engaging member, said spout engaging member engaging said inner spout skirt and adapted for helical motion with respect to said inner spout skirt, said cap-engaging member engaging said stem guide and adapted for axial motion with respect to said sleeve. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification