Fluid delivery assembly for a spraying apparatus

Patent metadata

Field	Value
Publication number	US-11458491-B2
Application number	US-201917418711-A
Country	US
Kind code	B2
Filing date	Dec 21, 2019
Priority date	Dec 27, 2018
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

The present invention relates to a fluid delivery assembly for a spraying apparatus. The assembly comprises an outer cup, a lid having a fluid outlet adapted to couple the lid to the spraying apparatus, and a liner for holding paint. The fluid delivery assembly comprises an interlocking keyed geometry adapted to prevent rotation of at least one of the lid and the liner with respect to the cup. The interlocking keyed geometry comprises at least one of (a) at least one protrusion of the cup extending into at least one recess of the lid, and (b) at least one protrusion of the lid extending into at least one recess of the cup, wherein the liner is trapped between the protrusion and the recess. The invention also relates to liners for such fluid delivery assemblies, which may be provided as a set of liners having different inners volumes.

First claim

What is claimed is:

1. A fluid delivery assembly for a spraying apparatus, the assembly comprising
an outer cup;
a lid having a fluid outlet adapted to couple the lid to the spraying apparatus; and
a liner for holding paint;
wherein the fluid delivery assembly comprises an interlocking keyed geometry adapted to prevent rotation of at least one of the lid and the liner with respect to the cup;
wherein the interlocking keyed geometry comprises at least one of
at least one protrusion of the cup extending into at least one recess of the lid; and
at least one protrusion of the lid extending into at least one recess of the cup;

wherein the liner is trapped between the protrusion and the recess;
wherein the liner comprises a keyed feature that is configured to be located in the recess, wherein the keyed feature is pre-formed into the liner.

2. The fluid delivery assembly according to claim 1 , wherein the cup comprises a peripheral sidewall, wherein the recess of the cup is located in said peripheral sidewall.

3. The fluid delivery assembly according to claim 2 , wherein the protrusion extends from said peripheral sidewall.

4. The fluid delivery assembly according to claim 1 , wherein the lid comprises an outwardly extending lid flange, wherein the recess of the lid is located in said lid flange.

5. The fluid delivery assembly according to claim 1 , wherein the lid comprises an outwardly extending lid flange, wherein a projection extends from said lid flange.

6. The fluid delivery assembly according to claim 1 , wherein the liner comprises a peripheral sidewall and a liner flange extending from the peripheral sidewall.

7. The fluid delivery assembly according to claim 1 , wherein the liner is deformed by the protrusion into the recess.

8. The fluid delivery assembly according to claim 7 , wherein a liner flange is deformed by the protrusion into the recess.

9. The fluid delivery assembly according to claim 1 , wherein the keyed feature is configured to interlock with the recess to prevent rotation of the liner with respect to the recess.

10. The fluid delivery assembly according to claim 9 , wherein the keyed feature is configured to interlock with the protrusion to prevent rotation of the liner with respect to the protrusion.

11. The fluid delivery assembly according to claim 6 , wherein the keyed feature is pre-formed into the liner flange.

12. The fluid delivery assembly according to claim 6 , wherein the liner flange includes one or more angled portions or sharp bends.

13. The fluid delivery assembly according to claim 6 , wherein the liner flange is angled at one or more locations.

14. The fluid delivery assembly according to claim 1 , wherein the recess comprises a peripheral wall, and wherein the liner is configured to extend along said peripheral wall at least along a segment thereof.

15. The fluid delivery assembly according to claim 1 , wherein the lid is provided with one or more sealing features configured to seal with the liner, wherein the sealing features are positioned below the protrusion.

16. The fluid delivery assembly according to claim 1 , wherein the protrusion protrudes upwardly or downwardly in the direction of a longitudinal axis (A).

17. The fluid delivery assembly according to claim 16 , wherein the recess is open in a downward or upward direction along the longitudinal axis (A), wherein the protrusion is configured to be inserted into the recess by moving the cup and lid together along the longitudinal axis (A).

18. The fluid delivery assembly according to claim 1 , wherein a support surface extends along the protrusion or the recess.

19. The fluid delivery assembly according to claim 18 , wherein the support surface faces in an upward direction.

20. The fluid delivery assembly according to claim 1 , wherein the assembly comprises a plurality of protrusions.

Assignees

• 3M Innovative Properties Co

Inventors

• Joseph Stephen C P
• Hegdahl Anna M

Classifications

• B05B7/2408

  characterised by the container or its attachment means to the spray apparatus · CPC title

• B05B7/2478 Primary

  Gun with a container which, in normal use, is located above the gun · CPC title

• B05B7/2481 Primary

  with a flexible container for liquid or other fluent material · CPC title

• B65D43/08

  having a peripheral flange fitting over the rim of the container {(not in use, covered by B65D43/0222 and B65D43/0274 + B65D2543/00 codes)} · CPC title

• B65D2543/00435

  Lids secured to an intermediate ring or like annular member fixed to the container mouth · CPC title