Two piece child resistant closure that is easy to open and/or manufacture
First Claim
1. A closure comprising:
- a cup shaped outer cap having a top wall and a depending sidewall, said sidewall being provided with a lug having a plurality of inwardly facing teeth, each one of the plurality of inwardly facing teeth having a gently sloping face and a steeply sloping face, the slopes of the gently sloping faces and the steeply sloping faces of at least two of the plurality of inwardly facing teeth differing respectively one from another; and
a cup shaped inner cap having a top wall and depending sidewall, said sidewall being provided with a plurality of outwardly facing teeth around a periphery thereof, the outwardly facing teeth being arranged on a shoulder extending upwardly from the sidewall of the inner cap, each one of the outwardly facing teeth having a steeply sloping face and a gently sloping face, said inner cap being rotatably fit and axially fixed in an interior of the outer cap, the steeply sloping faces and the gently sloping faces of the outwardly facing teeth being adapted to abut, respectively, the at least two steeply sloping faces and gently sloping faces of the inwardly facing teeth.
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Accused Products
Abstract
A closure includes a cup shaped overcap having a depending sidewall. The sidewall is provided with a lug having a plurality of inwardly facing teeth. Each one of the inwardly facing teeth has a gently sloping face and steeply sloping face. The slopes of the gently sloping faces and the steeply sloping faces of at least two of the inwardly facing teeth differ respectively one from another. The closure also includes a cup shaped undercap having a depending sidewall. The sidewall is provided with a plurality of outwardly facing teeth around its periphery. Each one of the teeth has a steeply sloping face and a gently sloping face. The steeply sloping faces and the gently sloping faces of the outwardly facing teeth are adapted to abut respectively, at least two of the steeply sloping faces and the gently sloping faces of the inwardly facing teeth.
28 Citations
12 Claims
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1. A closure comprising:
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a cup shaped outer cap having a top wall and a depending sidewall, said sidewall being provided with a lug having a plurality of inwardly facing teeth, each one of the plurality of inwardly facing teeth having a gently sloping face and a steeply sloping face, the slopes of the gently sloping faces and the steeply sloping faces of at least two of the plurality of inwardly facing teeth differing respectively one from another; and a cup shaped inner cap having a top wall and depending sidewall, said sidewall being provided with a plurality of outwardly facing teeth around a periphery thereof, the outwardly facing teeth being arranged on a shoulder extending upwardly from the sidewall of the inner cap, each one of the outwardly facing teeth having a steeply sloping face and a gently sloping face, said inner cap being rotatably fit and axially fixed in an interior of the outer cap, the steeply sloping faces and the gently sloping faces of the outwardly facing teeth being adapted to abut, respectively, the at least two steeply sloping faces and gently sloping faces of the inwardly facing teeth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A two piece child-resistant closure comprising:
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a closed end cylindrical outer cap having a top wall and a depending sidewall, said sidewall being provided with a lug having a plurality of inwardly facing teeth, each one of the plurality of inwardly facing teeth having a gently sloping face and a steeply sloping face, the slopes of the gently sloping faces and the steeply sloping faces of at least two of the plurality of inwardly facing teeth differing respectively one from another, at least one tab pivotally attached to the sidewall of the outer cap proximate a lower edge thereof; and a closed end cylindrical inner cap having a top wall and depending sidewall, said sidewall being provided with a plurality of outwardly facing teeth around its periphery, each one of the outwardly facing teeth having a steeply sloping face and a gently sloping face, said inner cap being rotatably fit and axially fixed in an interior of the inner cap, the steeply sloping faces and the gently sloping faces of the outwardly facing teeth being adapted to abut, respectively, the at least two steeply sloping faces and gently sloping faces of the inwardly facing teeth.
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Specification