Patent ID: 8720716

Claim:
A closure for a container, said container including a cylindrical neck portion having: a central passage; an outwardly extending annular upper flange having an annular retaining space therebelow; a container thread formed on an outer surface of said neck portion above said upper flange; and an annular end surface surrounding said passage, said closure comprising: a circular cover section for engaging said end surface of said neck portion and a cylindrical skirt portion extending downwardly from said cover section and surrounding said neck portion of said container and having a lower end about, at, or above said upper flange; a closure thread on an interior surface of said skirt portion operatively engaging said container thread for manually raising and lowering of said closure with respect to said container between a closed position whereat said cover section engages said end surface and an open position wherein said threads are disengaged; an annular retaining band in said retaining space and having inwardly extending projections for engaging said upper flange to prevent upward movement of said band in assembly; a frangible first sector connecting a lower end of said skirt portion to said retaining band, said first sector extending circumferentially around said lower end of said skirt portion and having end sections circumferentially spaced by a narrow non-frangible connecting section; a frangible second sector in said skirt section above said first sector and having a first end connected at one end section of said connecting section and a second end extending beyond the other end section thereby providing a circumferential tether section completely within said skirt section and between said retaining band; said sectors separating during rotation of said closure to said open position, wherein said tether section spans said second sector of said skirt section substantially less than said first sector and has a length accommodating resilient engagement of said skirt portion against said neck portion.