초록 ▼

A molded, back-off resistant closure for use with an associated container having a neck portion and at least one outwardly projecting ratchet formation includes a generally circular top wall portion and a skirt portion depending from the top wall portion. The skirt includes an inner wall and an oute

A molded, back-off resistant closure for use with an associated container having a neck portion and at least one outwardly projecting ratchet formation includes a generally circular top wall portion and a skirt portion depending from the top wall portion. The skirt includes an inner wall and an outer wall and defines a lower wall portion. The skirt terminates in an edge and includes a thread formation formed in the inner wall for matingly engaging the neck portion of the container. The closure includes a plurality of lugs recessed from the edge and extending radially inwardly from the lower wall and longitudinally along the lower wall portion a distance so as to not touch the edge. The lugs extend outwardly and downwardly such that at least one of the lugs can engage the at least one outwardly projecting ratchet formation on the container neck portion when the container and closure are engaged with one another.

대표청구항 ▼

[ What is claimed is:] [1.] A molded, back-off resistant closure for use with an associated container having a neck portion including at least one outwardly projecting ratchet formation, the closure comprising:a generally circular top wall portion;a skirt portion depending from the top wall portion,

[ What is claimed is:] [1.] A molded, back-off resistant closure for use with an associated container having a neck portion including at least one outwardly projecting ratchet formation, the closure comprising:a generally circular top wall portion;a skirt portion depending from the top wall portion, the skirt including an inner wall and an outer wall and defining a lower wall portion, the skirt terminating in an edge and including a thread formation formed in the inner wall; anda plurality of triangular lugs recessed from the edge and extending radially inwardly from the lower wall portion and longitudinally along the lower wall portion a distance so as to not touch the edge, wherein the lugs extend outwardly and downwardly such that at least one of the lugs can engage the at least one outwardly projecting ratchet formation on the container neck portion when the closure is screwed down onto the container, wherein the lugs taper so as to thin in a direction toward the edge of the skirt.