초록 ▼

A safety closure device for use in dispensing flowable material from containers. A base member is attachable to the container, and has an upstanding neck through which extends a dispensing bore. A closure cap is mounted on the neck and is rotatably and axially movable thereon. Movement is accomplish

A safety closure device for use in dispensing flowable material from containers. A base member is attachable to the container, and has an upstanding neck through which extends a dispensing bore. A closure cap is mounted on the neck and is rotatably and axially movable thereon. Movement is accomplished by means of a pair of tabs which are shielded by the base member except when rotated into alignment with a pair of recessed portions in the base member. Only when the tabs are rotatably aligned with the recessed portions can the closure cap be axially moved to uncover a dispensing opening. In a more complex embodiment of the invention, a second rotation of the closure cap is necessary after the axial movement is accomplished in order to uncover the dispensing opening.

대표청구항 ▼

A safety closure device for containers comprising: a base member disposed about a central axis and comprising an annular base surface facing in a first direction having a peripheral edge spaced a first distance from said central axis, at least one radially inwardly recessed portion in said periphera

A safety closure device for containers comprising: a base member disposed about a central axis and comprising an annular base surface facing in a first direction having a peripheral edge spaced a first distance from said central axis, at least one radially inwardly recessed portion in said peripheral edge spaced from said central axis a second distance less than said first distance, and a neck upstanding from said base surface in said first direction and having a dispensing bore terminating at its outer end in a bore opening, a valve member positioned in said dispensing bore for selectively controlling dispensing from said safety closure device, a closure cap mounted on said neck and being rotatably and axially movable with respect thereto, said closure cap having a substantially smooth outer surface that is difficult to grasp for axial movement of said closure cap, said closure cap comprising a dispensing opening registerable with said bore opening and radially extending manually operable tab means selectively radially alignable with said recessed portion and having a tab surface in opposed relationship to said base surface, said tab means extending radially outwardly a third distance greater than said second distance and substantially not greater than said first distance, said closure cap being movable rotatably about said central axis with respect to said base member between a safe position wherein said tab means is not aligned with said recessed portion and an operating position wherein at least a portion of said tab means is aligned with said recessed Portion, said closure cap also being axially movable with respect to said base member by manually engaging said tab means between a closed position wherein said tab surface is adjacent to said base surface and said valve member blocks flow through said dispensing opening and an open position wherein said tab surface is spaced from said base surface and said valve member permits flow through said dispensing opening whereby said tab means is masked by said base surface and said peripheral edge when in said closed position not aligned with said recess and thereby cannot easily be manually engaged to move said closure cap axially in said first direction, but is unmasked when in at least partial alignment with said recessed portion to allow said closure cap to be moved from said closed position to said open position.