# US 11,896,111 B2 · Gum-free environmental-friendly lipstick tube

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- Number: US 11,896,111 B2
- Document ID: US11896111B2
- Status: Granted
- Kind: B2
- Application number: 17/617,320
- Filed: 2020-04-14
- Published: 2022-10-06
- Granted: 2024-02-13
- Earliest claimed: 2019-12-26
- Applicants: Jianping Hang; Neng Zhu
- Inventors: Jianping Hang; Neng Zhu
- Web page: https://patentgrep.com/patent/US11896111B2

## CPC

- A45D 40/06: Casings wherein movement of the lipstick or like solid is a screwing movement
- A45D 40/04: effected by a screw
- A45D 2200/10: Details of applicators
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING

## Abstract

A gum-free environmental-friendly lipstick tube comprises a lifting tube, a spiral tube, a median bundle core and a base mounted successively in a sleeving manner from inside to outside. An inner wall of the base has a first flange and a plurality of strip-type grooves. The spiral tube has a first annular groove corresponding to the first flange and a strip-type clamping block corresponding to the strip-type groove. Additionally, the spiral tube has a second flange, while an inner wall of the median bundle core has a second annular groove corresponding to the second flange. An inner wall of the spiral tube has an internal thread, and the lifting tube has an external thread corresponding to the internal thread.

## Claims

### Claim 1

A gum-free environmental-friendly lipstick tube, comprising a lifting tube, a spiral tube, a median bundle core and a base mounted successively in a sleeving manner from inside to outside, wherein an inner wall of the base is provided with a first flange and a plurality of strip-type grooves, and the spiral tube is provided with a first annular groove corresponding to the first flange and a strip-type clamping block corresponding to the strip-type groove; the spiral tube is further provided with a second flange, and an inner wall of the median bundle core is provided with a second annular groove corresponding to the second flange; an inner wall of the spiral tube is provided with an internal thread, and the lifting tube is provided with an external thread corresponding to the internal thread; and during use, the base is rotated, and the base drives the spiral tube to rotate, so that the lifting tube ascends.

### Claim 2 (depends on 1)

The gum-free environmental-friendly lipstick tube of claim 1, wherein the base is provided with an upper cover in a sleeved manner, a top end of the base is provided with a spherical protrusion, and an inner wall of the upper cover is provided with a third annular groove.

### Claim 3 (depends on 1)

The gum-free environmental-friendly lipstick tube of claim 1, wherein the lifting tube is provided with a first special-shaped surface, and an inner wall of the median bundle core is provided with a second special-shaped surface corresponding to the first special-shaped surface.

### Claim 4 (depends on 1)

The gum-free environmental-friendly lipstick tube of claim 1, wherein the spiral tube is provided with an elastic sheet.