Spray attachment for bringing out fluid substances in a jet-like manner

Patent metadata

Field	Value
Publication number	US-11772105-B2
Application number	US-202017099940-A
Country	US
Kind code	B2
Filing date	Nov 17, 2020
Priority date	May 17, 2018
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A spray attachment for bringing out fluid substances in the manner of a jet includes a cap with an annularly peripheral, closed skirt with a wall, on whose inner side or outer side first fastener is integrally formed. The first fastener can engage a corresponding second fastener of an outer wall or inner wall of a container neck. The skirt at a longitudinal end is closed off by a cover surface having a recess. A receiving part for receiving an insert part is arranged in the region of the recess, and includes a conical receiving surface for receiving a conical peripheral surface of the insert part. The conical receiving service and the conical peripheral surface delimit at least one through-channel for fluid substance, through which the fluid substance can be brought out.

First claim

The invention claimed is:

1. A spray attachment for bringing out fluid substances in a jet-like manner, the spray attachment comprising:
a cap with an annularly peripheral, closed skirt with a wall, on whose inner side or outer side first fastening means are integrally formed, said first fastening means being configured for engaging into corresponding second fastening means on an outer wall or inner wall of a container neck, and with a cover surface which closes off a longitudinal end of the skirt, which has a recess and which is configured for receiving an insert part; and
a receiving part with a conical receiving surface which is closed in a circumferential direction is arranged in a region of the recess, said receiving part being configured for receiving a conical peripheral surface of the insert part which essentially corresponds with the conical receiving surface and is closed in the circumferential direction, wherein the conical receiving surface on the receiving part and the conical peripheral surface on the insert part delimit at least one through-channel for fluid substance when the conical receiving surface and the conical peripheral surface bear on one another, through which the at least one through-channel fluid substance can be brought out.

2. A spray attachment according to claim 1 , wherein the at least one through-channel is formed by a groove which is formed on the conical receiving surface of the receiving part and/or on the conical peripheral surface of the insert part.

3. A spray attachment according to claim 1 , wherein the at least one through-channel has a cross-sectional area of about 0.005 mm 2 to about 3.5 mm 2 .

4. A spray attachment according to claim 1 , wherein the insert part comprises:
first positioning means which interact with second positioning means on the receiving part.

5. A spray attachment according to claim 1 , wherein the insert part is configured to be arranged in a rotatable manner with respect to the conical receiving surface, between 0.5° and 179.5°.

6. A spray attachment according to claim 1 , wherein the receiving part and the insert part are rotationally fixed to one another.

7. A spray attachment according to claim 1 , wherein the insert part along its middle axis is fixedly held in the receiving part.

8. A spray attachment according to claim 1 , wherein the insert part is configured to be displaceable in the receiving part along its middle axis between a first position and a second position, and vice versa.

9. A spray attachment according to claim 8 , wherein the insert part, is configured to be displaceable in the receiving part along its middle axis by a predefined measure which lies in a range of about 0.05 mm to about 5.0 mm.

10. A spray attachment according to claim 1 , wherein each middle axis of at least two through-channels lies in a plane which is spanned by a generatrix of the conical receiving surface of the receiving part and a middle axis of the receiving part, or by a generatrix of the conical peripheral surface of the insert part and a middle axis of the insert part.

11. A spray attachment according to claim 1 , wherein each middle axis of at least two through channels intersects a plane at an angle, wherein the middle axes of the at least two through-channels extend essentially parallel to the conical receiving surface of the receiving part or essentially parallel to the conical peripheral surface of the insert part, wherein the plane is spanned by a generatrix of the conical receiving surface of the receiving part and a middle axis of the receiving part or by a generatrix of the conical peripheral surface of the insert part and a middle axis of the insert part, wherein the angle is greater than 0° and smaller than 90°.

12. A spray attachment according to claim 11 , wherein the angles at which the middle axes of the through-channels intersect the plane are equal.

13. A spray attachment according to claim 11 , wherein generatrices of the conical receiving surface of the receiving part or generatrices of the conical peripheral surface of the insert part meet essentially at one point, wherein the point is located counter to the extension direction of the skirt from the cover surface.

14. A spray attachment according to claim 1 , wherein generatrices of the conical receiving surface of the receiving part or generatrices of the conical peripheral surface of the insert part meet essentially at one point, wherein the point is located in an extension direction of the skirt from the cover surface.

15. A spray attachment according to claim 1 , wherein the insert part is configured essentially as a truncated cone.

16. A spray attachment according to claim 1 , wherein the receiving part and/or the insert part project axially beyond an outer side of the cover surface of the cap and form a pipe-stub-like continuation.

17. A spray attachment according to claim 16 , comprising:
a hinge joint connected to the cover part and integrally formed on the cap, said cover part on an inner surface which faces the cover surface having a closure cone which projects away therefrom and sealingly interacts with the pipe-stub-like continuation.

18. A spray attachment according to claim 1 , configured as a plastic injection and/or a plastic compression molded attachment.

19. A spray attachment according to claim 1 , wherein at least the skirt together with the cover surface and receiving part are integrally configured as one piece of a plastic of the group consisting of polyolefins, polyethylene and polypropylene, HDPE, LDPE, their copolymers, recyclates of the mentioned polyolefins and mixtures of the mentioned polyolefins and of polyesters, PET, PEI, PPF', PBT, their copolymers, recyclates of the mentioned polyesters and mixtures of the mentioned polyesters.

20. A spray attachment according to claim 1 , wherein the skirt together with the cover surface and the receiving part and the insert part consist of a same plastic.

21. A plastic container in a combination with the spray attachment according to claim 1 , wherein the plastic container comprises:
a container body which can be squeezed together in an elastically reversible manner at least in regions.

22. A plastic container according to claim 21 , configured as a blow molded container.

Assignees

• Alpla Werke Alwin Lehner Gmbh & Co Kg

Inventors

• Müller Florian
• Bösch Klemens

Classifications

• B65D83/771

  for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm · CPC title

• B05B1/10 Primary

  in the form of a fine jet, e.g. for use in wind-screen washers · CPC title

• B05B15/65

  Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits · CPC title

• B65D83/0055

  Operations & Transport · mapped topic

• B65D47/20 Primary

  comprising hand-operated members for controlling discharge (closures with discharge by pumping {B05B11/10}) · CPC title