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US 11,297,925 B2Granted
Refillable lipstick case
AssigneeCrystal International (Group)
InventorsRoger Hwang, Stephen M Fisher, II, William Lloyd Alusitz
Life of this patent
Estimating the term…
Abstract
A refillable lipstick case comprising a refill, an outer shell and a cover. The refill is configured to be detachably received at least partially within a hollow cylindrical body of the outer shell such that the refill can be replaced when a cosmetic stick held within the refill is used up by a consumer. The outer shell and the cover are retained for re-use, and the refill can be replaced with a new refill.
Claims20
A refillable lipstick case comprising:
- an outer shell having a hollow cylindrical body with a sidewall, the outer shell having an opening at a proximal end and an opening at a distal end thereof;
- a cover removably secured to the outer shell;
- a refill configured to be detachably received at least partially within the hollow cylindrical body of the outer shell;
- wherein the refill further comprises an inner shell, an inner body, a spiral body, a cup and a plug;
- wherein the spiral body has an upper portion connected to the inner body and a lower portion connected to the plug, and wherein the spiral body has an elongated hollow body provided with helical threads on an inner surface of the spiral body;
- wherein the cup includes a cylindrical cup forming a seat for receiving a stick of a cosmetic product and a drive rod extending downwardly from a bottom surface of the cylindrical cup;
- wherein a bottom end portion of the drive rod is configured to be received in the elongated hollow body of the spiral body such that protrusions present on the drive rod engage with helical threads of the spiral body;
- wherein the drive rod passes through a hole provided on a top end face of inner body;
- wherein a lower portion of the inner shell is fixedly connected on an outer surface of the inner body;
- wherein a middle part of the spiral body is a bulged portion, and a lower surface of the bulged portion is provided with a plurality of reinforcing ribs in a radial arrangement,
- wherein the plug includes a sidewall and a bottom wall and a cavity for receiving the lower portion of the spiral body;
- wherein the sidewall of the plug includes a plurality of grooves;
- wherein the plurality of grooves are radially spaced and extend length wise from an upper edge of the sidewall of the plug, and wherein the plurality of grooves receives the reinforcing ribs of the spiral body when the plug and the spiral body are fixed together.
10 more elements
A refill for a refillable lipstick case, the refill extending along a central longitudinal axis and comprising:
- an inner shell, an inner body, a spiral body, a cup and a plug;
- wherein the spiral body has an upper portion rotatably connected to the inner body and a lower portion fixedly connected to the plug, and wherein the spiral body has an elongated hollow body provided with helical threads on an inner surface of the spiral body;
- wherein the cup includes a cylindrical cup forming a seat for receiving a stick of a cosmetic product and a drive rod extending downwardly from a bottom surface of the cylindrical cup;
- wherein a bottom end portion of the drive rod is configured to be received in the elongated hollow body of the spiral body such that protrusions present on the drive rod engage with helical threads of the spiral body;
- wherein, the drive rod passes through a hole provided on a top end face of inner body;
- wherein a middle part of the spiral body is a bulged portion, and a lower surface of the bulged portion is provided with a plurality of reinforcing ribs in a radial arrangement with respect to the central longitudinal axis,
- wherein the plug includes a sidewall and a bottom wall and a cavity for receiving the lower portion of the spiral body;
- wherein the sidewall of the plug includes a plurality of grooves;
- wherein the plurality of grooves is radially spaced and extend length wise from an upper edge of the sidewall, and wherein the plurality of grooves receives the reinforcing ribs of the spiral body;
- and
- wherein a portion of each of the plurality of reinforcing ribs extends outward from the grooves when the plug and the spiral body are fixed together.
8 more elements
Dependencies are inferred from the claim text.