# US 10,441,056 B2 · Wringing device for a liquid or pasty material applicator

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- Number: US 10,441,056 B2
- Document ID: US10441056B2
- Status: Granted
- Kind: B2
- Application number: 15/563,258
- Filed: 2016-03-31
- Published: 2018-04-05
- Granted: 2019-10-15
- Earliest claimed: 2015-04-01
- Assignees: Parfums Christian Dior
- Applicants: Parfums Christian Dior
- Inventors: Savine Lefevre; Francois Gautier
- Web page: https://patentgrep.com/patent/US10441056B2

## CPC

- A45D 40/267: {comprising a wiper}
- A45D 34/04: Appliances specially adapted for applying liquid, e.g. using roller or ball
- A45D 34/046: {comprising a wiper}
- 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 wiper device (10) for a liquid or paste applicator (30), the wiper device comprising a tubular body (12) having an axis (X), and a plurality of blades (20) that extend from the tubular body (12) and that are arranged around the axis (X), each blade (20) comprising a proximal end (22) that is close to the tubular body, a distal end (26), and an intermediate portion (24), the wiper device being characterized in that the intermediate portion (24) of each blade is closer to the axis (X) of the tubular body (12) than are the proximal and distal ends (22, 26) of said blade (20). A liquid or paste applicator unit including such a wiper device.

## Claims

### Claim 1

A wiper device for a liquid or paste applicator, the wiper device comprising a tubular body having an axis, and a plurality of blades that extend from the tubular body and that are arranged around the axis, each blade comprising a proximal end that is close to the tubular body, a distal end, and an intermediate portion, wherein the intermediate portion of each blade is closer to the axis of the tubular body than are the proximal and distal ends of said blade, and at least some of the blades are swirled, at least in part, having successive radial sections that are progressively offset relative to one another in a circumferential direction, and wherein at least some of the blades have radial sections that are not circular, and are blades that are twisted, at least in part.

### Claim 2 (depends on 1)

A wiper device according to claim 1, wherein a proximal portion, situated between the intermediate portion and the proximal end, approaches the axis on going away from the body, while a distal portion, situated between the intermediate portion and the distal end, departs from the axis on going away from the body.

### Claim 3 (depends on 1)

A wiper device according to claim 1, wherein the distal ends of the blades are free.

### Claim 4 (depends on 1)

A wiper device according to claim 1, wherein end faces of some of the blades are not perpendicular to the axis.

### Claim 5 (depends on 1)

A wiper device according to claim 1, wherein radially-inner faces of at least some of the blades are curved.

### Claim 6 (depends on 5)

A wiper device according to claim 5, wherein, in projection onto a plane that is orthogonal to the axis of the tubular body, angular sectors occupied by distal portions and by proximal portions substantially cover a complete turn.

### Claim 7 (depends on 1)

A wiper device according to claim 1, wherein projections of intermediate segments comprising the intermediate portions onto a plane that is orthogonal to the axis, cover a complete turn.

### Claim 8 (depends on 1)

A liquid or paste applicator unit comprising a container having a neck, an applicator having a stem that is provided with an applicator member, and a wiper device according to claim 1 that is mounted in the neck of the container, wherein a smallest diametral dimension defined between facing inner faces of the blades is less than a diameter of a cross-section of the stem.

### Claim 9 (depends on 8)

An applicator unit according to claim 8, wherein a greatest diametral dimension of the applicator member is less than a greatest diametral dimension defined between the facing inner faces of the blades.

### Claim 10 (depends on 8)

An applicator unit according to claim 8, wherein the blades are more flexible than the stem of the applicator.