Fluid product dispenser

Patent metadata

Field	Value
Publication number	US-12377426-B2
Application number	US-202117921816-A
Country	US
Kind code	B2
Filing date	Apr 27, 2021
Priority date	Apr 28, 2020
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

Fluid product dispenser comprising:
a reservoir (R) having a neck ( 1 ), a dispensing head (T) mounted axially on the neck ( 1 ) and comprising a dispensing member (P), and a fastening ring (F) engaging both the neck ( 1 ) and the dispensing member (P), the fastening ring (F) comprising a skirt ( 2 ) including a plurality of internal latching projections ( 211 ), characterised in that the neck ( 1 ) defines externally a plurality of horizontal latching shoulders ( 130 ) oriented downward and a plurality of release ramps ( 112 ), the latching projections ( 211 ), initially engaged below the horizontal latching shoulders ( 130 ), being constrained radially outward on the release ramps ( 112 ) by rotation of the skirt ( 2 ) around the neck ( 1 ), thus releasing the latching projections ( 211 ) of their latching engagement from below the latching shoulders ( 130 ).

First claim

The invention claimed is:

1. A fluid product dispenser comprising:
a fluid product reservoir having a neck ( 1 ) internally defining an axial opening ( 10 ) oriented upward and communicating with the inside of the reservoir (R),
a dispensing head (T) mounted axially on the neck ( 1 ) of the reservoir (R), the head (T) comprising a dispensing member (P) and a fastening ring (F) engaging both the neck ( 1 ) of the reservoir (R) and the dispensing member (P), the fastening ring (F) comprising a skirt ( 2 ) including a plurality of internal latching projections ( 211 ),
wherein the neck ( 1 ) defines externally a plurality of horizontal latching shoulders ( 130 ) oriented downward and a plurality of release ramps ( 112 ), the latching projections ( 211 ), initially engaged below the horizontal latching shoulders ( 130 ), being constrained radially outward on the release ramps ( 112 ) by rotation of the skirt ( 2 ) around the neck ( 1 ), thus releasing the latching projections ( 211 ) of their latching engagement from below the latching shoulders ( 130 );
wherein the skirt forms a plurality of latching tabs, each forming one of the plurality of the internal latching projections; and
wherein the skirt forms a plurality of axial holding tabs defining internal faces which come into close and extended contact with projecting zones of the neck, wherein each projecting zone is located between two adjacent horizontal latching shoulders, the axial holding tabs and the latching tabs being disposed alternately, the latching projections extending radially further inward than the internal faces of the axial holding tabs.

2. The dispenser according to claim 1 , wherein each release ramp ( 112 ) connects two neck zones which are radially offset and located axially at the same level, namely a base zone ( 11 ) located axially below each horizontal latching shoulder ( 130 ) and a projecting zone ( 121 ) located between two adjacent horizontal latching shoulders ( 130 ).

3. The dispenser according to claim 2 , wherein at least one of the projecting zones ( 121 ) is provided with an oblique unscrewing cam ( 125 ) against which a lateral edge ( 214 ) of one of the internal latching projections ( 211 ) is urged axially upward, during the rotation of the skirt ( 51 ) around the neck ( 1 ).

4. The dispenser according to claim 2 , wherein the latching shoulders ( 130 ) each define a substantially sharp latching ridge ( 132 ), which extends advantageously in radial alignment with the projecting zone ( 121 ), so as to form a continuous annular line.

5. The dispenser according to claim 1 , wherein the neck ( 1 ) externally forms a plurality of oblique cams of angular indexing ( 123 ) on which lateral edges ( 214 ) of the internal latching projections ( 211 ) are urged in rotation during the axial displacement of the skirt ( 2 ) towards the neck ( 1 ), so as to automatically bring the internal latching projections ( 211 ) in axial alignment with their respective latching shoulders ( 130 ), before their latching under the latching shoulders ( 130 ).

6. The dispenser according to claim 1 , wherein the neck ( 1 ) forms a radial expansion ramp ( 133 ) located axially above each latching shoulder ( 130 ), the internal latching projections ( 211 ) being elastically deformed radially outward on the radial expansion ramps ( 133 ), to then be relaxed under their respective latching shoulders ( 130 ).

7. The dispenser according to claim 1 , wherein the axial holding tabs ( 22 ) define external contact faces ( 227 ) and the latching tabs ( 21 ) define free external faces ( 217 ), the external contact faces ( 227 ) extending radially further outward than the free external faces ( 217 ), thus allowing the latching tabs ( 21 ) to be deformed radially outward by remaining in bulkiness defined by the axial holding tabs ( 22 ).

8. The dispenser according to claim 1 , further comprising a trim band ( 3 ) which is in contact with the external contact faces ( 227 ) of the axial holding tabs ( 22 ).

9. The dispenser according to claim 1 , wherein the internal faces ( 220 ) of the axial holding tabs ( 22 ) each form a lower gap ( 221 ) housing an unscrewing cam ( 125 ) of the neck ( 1 ).

10. The dispenser according to claim 1 , wherein the dispensing member is a pump or a valve.

11. A fluid product dispenser comprising:
a fluid product reservoir having a neck ( 1 ) internally defining an axial opening ( 10 ) oriented upward and communicating with the inside of the reservoir (R),
a dispensing head (T) mounted axially on the neck ( 1 ) of the reservoir (R), the head (T) comprising a dispensing member (P) and a fastening ring (F) engaging both the neck ( 1 ) of the reservoir (R) and the dispensing member (P), the fastening ring (F) comprising a skirt ( 2 ) including a plurality of internal latching projections ( 211 ),
wherein the neck ( 1 ) defines externally a plurality of horizontal latching shoulders ( 130 ) oriented downward and a plurality of release ramps ( 112 ), the latching projections ( 211 ), initially engaged below the horizontal latching shoulders ( 130 ), being constrained radially outward on the release ramps ( 112 ) by rotation of the skirt ( 2 ) around the neck ( 1 ), thus releasing the latching projections ( 211 ) of their latching engagement from below the latching shoulders;
wherein the skirt ( 2 ) forms a plurality of axial holding tabs ( 22 ) defining internal faces ( 220 ) which come into close and extended contact with projecting zones ( 121 ) of the neck ( 1 ); and
wherein the internal faces ( 220 ) of the axial holding tabs ( 22 ) each form a lower gap ( 221 ) housing an unscrewing cam ( 125 ) of the neck ( 1 ).

12. The dispenser according to claim 11 , wherein the dispensing member is a pump or a valve.

13. A fluid product dispenser comprising:
a fluid product reservoir having a neck ( 1 ) internally defining an axial opening ( 10 ) oriented upward and communicating with the inside of the reservoir (R),
a dispensing head (T) mounted axially on the neck ( 1 ) of the reservoir (R), the head (T) comprising a dispensing member (P) and a fastening ring (F) engaging both the neck ( 1 ) of the reservoir (R) and the dispensing member (P), the fastening ring (F) comprising a skirt ( 2 ) including a plurality of internal latching projections ( 211 ),
wherein the neck ( 1 ) defines externally a plurality of horizontal latching shoulders ( 130 ) oriented downward and a plurality of release ramps ( 112 ), the latching projections ( 211 ), initially engaged below the horizontal latching shoulders ( 130 ), being constrained radially outward on the release ramps ( 112 ) by rotation of the skirt ( 2 ) around the neck ( 1 ), thus releasing the latching projections ( 211 ) of their latching engagement from below the latching shoulders;
wherein the neck ( 1 ) externally defines a cylindrical base zone ( 11 ) and a plurality of projecting supports ( 12 ) separated from one another by the cylindrical base zone ( 11 ), except at projecting ribs ( 13 ), each projecting support ( 12 ) forming a projecting zone ( 121 ), a vertical release ramp ( 112 ) and advantageously at least one oblique cam of angular indexing ( 123 ) which connects the cylindrical base zone ( 11 ) to the projecting zone ( 121 ) and advantageously an oblique unscrewing cam ( 125 ) which projects from the projecting zone ( 121 ), each projecting rib ( 13 ) forming one of the plurality of the horizontal latching shoulders ( 130 ) and a radial expansion ramp ( 133 ), and
wherein the skirt ( 2 ) comprises a base cylindrical external face ( 20 ), the skirt ( 2 ) comprising latching tabs ( 21 ) which form the latching projections ( 211 ) coming belo

Assignees

• Aptar France Sas

Inventors

• Lafosse Alain
• Kanarek Yann

Classifications

• B05B11/1047 Primary

  the pump being preassembled as an independent unit before being mounted on the container · CPC title

• B05B11/001

  Snap-on-twist-off type connections · CPC title

• B05B11/1049 Primary

  Attachment arrangements comprising a deformable or resilient ferrule clamped or locked onto the neck of the container by displacing, e.g. sliding, a sleeve surrounding the ferrule · CPC title