초록 ▼

A tamper-indicating, child resistant closure for a threaded bottle includes an inner cap and an outer driver telescoped over the inner cap. The inner cap includes a top wall having spaced apart upstanding ribs. The outer driver includes a top wall having a pair of top wall segments hinged for pivota

A tamper-indicating, child resistant closure for a threaded bottle includes an inner cap and an outer driver telescoped over the inner cap. The inner cap includes a top wall having spaced apart upstanding ribs. The outer driver includes a top wall having a pair of top wall segments hinged for pivotal movement to, and being spaced apart from each other by a spacing rib also forming part of the top wall of the driver. Each of the top wall segments initially is secured to contiguous sections of the outer driver by frangible, tamper-indicating tabs, and the top wall segments are moved from a generally horizontal position to a generally vertical position after the tamper-indicating tabs have been broken to form a driving section in the top wall of the driver. This driving section then is directed into the space between the upstanding ribs associated with the top wall of the inner cap by moving the inner cap and outer driver axially toward each other. In this orientation, the upstanding top wall segments also can be gripped to provide leverage in rotating the driver and inner cap in a counter-clockwise direction to unscrew the closure from the threaded neck of a bottle.

대표청구항 ▼

A tamper-indicating, child resistant closure for a threaded bottle, said closure including: an inner cap including a top wall and an internally threaded peripheral skirt; an outer driver including a top wall and a peripheral skirt, said outer driver being telescoped over the inner cap with the top w

A tamper-indicating, child resistant closure for a threaded bottle, said closure including: an inner cap including a top wall and an internally threaded peripheral skirt; an outer driver including a top wall and a peripheral skirt, said outer driver being telescoped over the inner cap with the top wall of the outer driver being spaced axially outward of the top wall of the inner cap, said top walls of the outer driver and the inner cap being axially movable relative to each other; biasing means for normally biasing the top walls of the outer driver and inner cap axially away from each other; cooperating one-way drive means on adjacent parts of the cap and driver engagable for permitting rotational motion imparted to the driver to be transmitted to the inner cap for screwing the inner cap onto the bottle; and second drive means for permitting rotational motion imparted to the driver to be transmitted to the inner cap for unscrewing the inner cap from the bottle, the improvement wherein said second drive means includes; (1) a pair of top wall segments forming part of the top wall of the outer driver, said pair of top wall segments being hinged for pivotal movement to, and being spaced apart from each other by a spacing rib forming part of the top wall of the outer driver, each of said top wall segments also being secured to contiguous sections of said outer driver by frangible, tamper-indicating tabs, said top wall segments being prevented from pivotal movement until said frangible tabs are broken, and, after said frangible tabs are broken, being permitted to pivotally move from a generally horizontal position to a generally vertical position for forming a driving section in the top wall, said top wall segments when in the generally vertical position constituting a manually engagable gripping means for rotating the outer driver; and (2) drive means on the top wall of the inner cap for engaging with and being driven by the driving section in the top wall of the outer driver after the frangible tabs are broken, the top wall segments of the outer driver are pivotally moved out of their generally horizontal position, and the top walls of the outer driver and inner cap are moved axially toward each other against the force of the biasing means.