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AssigneeNorthern Engineering and Plastics Corp.
InventorLuca Molinaro
Estimating the term…
A blow molded container has a cylindrical neck portion with novel seven circumferentially spaced continuous spiral thread configurations on its exterior to immediately receive and engage an improved tamper indicating flexible cap comprising a top with an annular depending wall on its peripheral edge and seven circumferentially spaced continuous spiral thread configurations on the inner surface surface of the annular depending wall. The novel constructions enable the tamper indicating flexible cap to immediately engage the lead-in ends of the seven circumferentially spaced thread patterns on the exterior of the neck of the container without the heretofore necessary rotation of the prior art caps in order to engage the single spiral thread configuration on the neck of the container.
A container having a neck surrounding an opening therein, said neck having a first portion of a known diameter, a plurality of vertical fastening configurations on the exterior of said first portion, a cylindrical neck portion of a lesser diameter than said known diameter, said cylindrical neck portion extending vertically above said first portion to said opening, seven circumferentially and vertically spaced continuous spiral thread configurations on said cylindrical neck portion, where said continuous spiral thread configurations each extend for more than a complete spiral circle, each of said spiral thread configurations having uppermost ends defining circumferentially spaced lead-in points so as to form multiple means for registering engagement with a flexible cap having a depending annular wall and seven circumferentially and vertically spaced continuous spiral thread configurations on the inner surface of said depending annular wall of said cap, each thread configuration having a first end and a second end, said second end circumferentially and axially spaced from said first end, and a tear skirt depending from said depending annular wall, means on said tear skirt engaging said plurality of vertical fastening configurations.
In the combination of a container and a closure therefor wherein the container has a cylindrical neck surrounding an opening therein, said neck having a first portion of a known diameter and a portion thereabove of a lesser diameter than said known diameter, the neck portion of said known diameter having ratchet sections and the neck portion of lesser diameter thereabove having seven circumferentially and vertically spaced annular spiral thread configurations thereon, each of said circumferentially and vertically spaced annular spiral thread configurations forming a continuous thread, where said continuous thread extends for more than a complete spiral circle, each of said continuous thread configurations having an upper end and a lower end, said lower end circumferentially and axially spaced from said upper end, with the upper ends of each of said threads forming circumferentially spaced lead-in points for the reception of said closure having a top, an annular depending wall on said top, seven circumferentially and vertically spaced continuous annular spiral thread configurations on the inner surface of said annular depending wall engageable with said annular continuous spiral thread configurations on said neck portion of lesser diameter.
Dependencies are inferred from the claim text.