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US 8,474,634 B1Granted
Child resistant closure with vents
AssigneeRexam Healthcare Packaging Inc.
InventorsMark K. Branson, Brian J. Brozell
Life of this patent
Estimating the term…
Abstract
A child resistant closure having an outer cap and an inner cap each of which has a base wall on a peripheral skirt with sets of lugs on the inner surface of the outer closure member and on the outer surface of the inner closure member which are adapted to be engaged when the members are moved axially toward one another. The outer surface of the inner cap is provided with a plurality of vents to allow for increased evacuation of fluid between the inner and outer cap.
Claims20
A push and turn child resistant closure comprising:
- an outer cap operably disposed over an inner cap;
- said inner cap having a top wall and a depending sidewall, said sidewall having an outer surface, and said top wall having an outer surface;
- said inner cap having a plurality of circumferentially spaced outer peripheral sections, each one of said sections extending axially outward from said outer surface of said top wall and also extending radially outward from said outer surface of said sidewall, each one of said sections including at least one lug extending axially from said top wall outer surface and including at least one retaining bead extending radially outward at a lower distal end of said skirt thereby creating a continuous channel to evacuate fluid from between said inner cap and said outer cap;
- and
- said outer cap including a top wall and a depending sidewall, and a plurality of circumferentially spaced lugs projecting downwardly from said top wall, said sidewall having a distal free end, said distal free end of said skirt having a continuous bead projecting radially inward.
2 more elements
A child resistant closure comprising:
- an inner cap operably engaging an outer cap, wherein said outer cap includes a top wall and a peripheral outer cap skirt, and a first plurality of child resistant lugs, said outer cap skirt having a distal free end, said distal free end of said outer cap skirt having a continuous bead projecting radially inward;
- said inner cap including a top wall and a peripheral inner cap skirt, and a second plurality of child resistant lugs, said inner cap skirt has an outer surface with a discontinuous bead projecting radially outward therefrom at a distal free end of said inner cap skirt, said discontinuous bead engaging with said outer cap continuous bead to axially retain said inner cap within said outer cap, said inner cap skirt having at least one longitudinal channel recessed radially inward from said outer surface of said inner cap skirt and extending between two adjacent portions of said discontinuous bead projecting from said inner cap skirt and extending from said distal free end to said inner cap top wall;
- a spring mechanism between said inner cap and outer cap maintaining operable axial displacement therebetween to facilitate operation of said first and second plurality of child resistant lugs;
- and
- said longitudinal channel being in an open position when said discontinuous bead of said inner cap is engaged with said continuous bead of said outer cap thereby providing fluid communication into and out of said child resistant closure from between said inner cap and said outer cap.
2 more elements
A child resistant closure comprising:
- an inner cap nested into an outer cap with a spring mechanism yieldingly urging said outer cap away from said inner cap;
- said outer cap includes a top wall and a skirt, and a plurality of circumferentially spaced lugs projecting downwardly from said top wall, said skirt having a distal free end, said distal free end of said skirt having a continuous bead projecting radially inward;
- said inner cap having a top wall with a depending skirt, said top wall having an upper surface, and a plurality of circumferentially spaced lugs projecting upwardly from said top wall upper surface, each said lug having a raised center portion extending a first distance from said top wall upper surface and at least one lateral portion extending a second distance from said top wall upper surface, wherein said first distance is larger than said second distance, a first recessed vent radially extending through said at least one lateral portion of at least one said lug;
- said inner cap depending skirt having an outer periphery surface, said outer periphery surface of said inner cap depending skirt having a second recessed vent axially extending from a distal free end of said skirt to said inner cap top wall, wherein said second recessed vent axially extends through a retaining bead at said distal free end of said skirt whereby an outer periphery of said retaining bead is discontinuous;
- and
- said first recessed vent and said second recessed vent are in fluid communication.
3 more elements
Dependencies are inferred from the claim text.