초록 ▼

A propel-repel swivel cosmetic container features basic lead-screw and nut parts, each of which is a single injection-molded piece of plastic material with certain further integral formations such that a variety of aesthetically satisfying overall appearances is available upon assembly to particular

A propel-repel swivel cosmetic container features basic lead-screw and nut parts, each of which is a single injection-molded piece of plastic material with certain further integral formations such that a variety of aesthetically satisfying overall appearances is available upon assembly to particular tubular further parts, thereby providing a variety of different-appearing cosmetic containers utilizing in common the same basic lead-screw and nut propulsion mechanism.

대표청구항 ▼

In a propel-repel cosmetic container wherein (a) an elongate tubular outer shell is characterized by polygonal wall formations along a major portion of its length and includes a rotary bearing portion at a longitudinal end thereof, (b) a carrier member is slidably positionable along said major exten

In a propel-repel cosmetic container wherein (a) an elongate tubular outer shell is characterized by polygonal wall formations along a major portion of its length and includes a rotary bearing portion at a longitudinal end thereof, (b) a carrier member is slidably positionable along said major extent and has corresponding polygonal faces in non-rotatable engagement with the inner surfaces of said wall formations, said carrier member being of single-piece injection-molded plastic construction and openly cupped at one end to receive and support cosmetic material in cantilevered projection beyond said one end, said carrier member integrally including at its other end an elongate tail having external thread formations, and (c) a cupped base-end closure in rotational and axially located engagement with said bearing portion and accommodating said tail when said carrier member is in its fully retracted position, said closure including a nut formation in threaded engagement with said thread formations, the improvement wherein said nut formation is part of a cupped nut member apart from but in permanently secured assembly to a cupped base member to complete said base-end closure, said nut member having a cup-member-engaged portion and the bore of the cup of said nut member having a bearing-portion-engaged portion and being of single-piece injection-molded plastic construction, whereby said carrier and nut members may constitute a two-piece basic subassembly of coacting propulsion parts having inherent universal application in combination with a variety of styles, shapes, materials and formations of said tubular outer shell and of said cupped base member to provide at relative economy a range of different products all of which utilize said carrier and nut members.