Liquid supply assembly

Patent metadata

Field	Value
Publication number	US-11679399-B2
Application number	US-202117324186-A
Country	US
Kind code	B2
Filing date	May 19, 2021
Priority date	Jun 20, 2006
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

A connector system for a liquid container system for a spray gun includes a lid that includes a liquid outlet and an adapter. The adapter includes a spray gun end and a lid end. The ends are connected with a liquid-tight passageway. Further, the spray gun end is adapted for releasable engagement with a liquid inlet port of the spray gun and the lid end is adapted for releasable engagement with the liquid outlet. The connector system also includes a plurality of interlocking tab assemblies for releasably attaching the adapter to the lid. Each assembly includes a first tab and a second tab, wherein an end of the first tab is adapted to secure the adapter to the lid when the first tab and the second tab are interlocked.

First claim

What is claimed is:

1. A liquid container system for use with a gravity fed spray gun, comprising:
a liner comprising a closed end and an open end, wherein the liner is adapted to hold a liquid, and wherein the liner is adapted to collapse as the liquid is removed from the liquid container system of the gravity fed spray gun;
a paint cup adapted to hold the liner; and
a lid comprising an inlet, an outlet, a sidewall that terminates at the inlet, a filter that is generally planar and positioned in an interior portion of the lid and positioned completely between the inlet and outlet, wherein the filter has a diameter, wherein the outlet has a diameter, wherein the inlet has a diameter, wherein the diameter of the filter is smaller than the diameter of the inlet, wherein the diameter of the filter is larger than the diameter of the outlet, wherein the filter is bonded to the lid and wherein the lid had no obstruction to the flow of liquid between the inlet and the filter.

2. The liquid container system of claim 1 , wherein a face of the filter that is closest to the inlet contains no obstructions.

3. The liquid container system of claim 1 , wherein the lid further comprises a space between the inlet and the filter that does not contain an obstruction to the flow of liquid.

4. The liquid container system of claim 1 , wherein the lid contains a space between the inlet and the filter that does not contain an obstruction to the flow of liquid.

5. The liquid container system of claim 1 , wherein a liquid flow is unobstructed from the inlet to the outlet through the filter.

6. The liquid container system of claim 1 , wherein the filter is substantially coupled to the lid only on a single planar side.

7. The liquid container system of claim 6 , wherein the lid further comprises a locking mechanism, and wherein the locking mechanism is fixedly attached to the lid in an unassembled state where the paint cup is separate from the lid.

8. The liquid container system of claim 7 , wherein the lid extends below a top of the paint cup both on the interior and exterior of the paint cup when the lid is attached to the paint cup.

9. The liquid container system of claim 8 , wherein the locking mechanism is movable relative to a main body of the lid and wherein the locking mechanism is configured to couple the lid and the paint cup.

10. The liquid container system of claim 9 , wherein the locking mechanism is attached to a top surface of the lid and configured to attach to an exterior of the paint cup.

11. The liquid container system of claim 10 , wherein the locking mechanism further comprises a plurality of internally facing protrusion configured to engage the paint cup in an assembled state when the lid and the paint cup are coupled.

12. The liquid container system of claim 11 , wherein the locking mechanism configured to couple the lid to the paint cup at separate and discrete portions of the exterior of the paint cup.

13. The liquid container system of claim 12 , wherein at least one portion of the interior wall of the lid between the filter and the outlet has a curved contour as viewed in cross-section.

14. The liquid container system of claim 6 , wherein the single planar side faces the outlet.

15. The liquid container system of claim 1 , wherein an internal surface of the lid is free of retaining walls between the filter and the inlet configured to couple to the filter.

16. The liquid container system of claim 15 , wherein the lid is free of retaining walls configured to engage a second surface of the filter opposite a first surface of the filter.

17. The liquid container system of claim 1 , wherein the filter is coupled to the lid along at least a portion of a circumference of the filter.

18. The liquid container system of claim 17 , wherein the filter is coupled to the lid at an internal radial protrusion of the lid.

19. The liquid container system of claim 1 , wherein the lid further comprises a locking mechanism, and wherein the locking mechanism is fixedly attached to the lid in an unassembled state where the paint cup is separate from the lid.

20. The liquid container system of claim 19 , wherein the locking mechanism is fixedly attached to an external portion of the lid in an unassembled state where the paint cup is separate from the lid.

21. The liquid container system of claim 19 , wherein the locking mechanism is integral with the lid.

22. The liquid container system of claim 19 , wherein the paint cup has an interior and an exterior, and wherein a portion of the lid is adapted to be positioned in the interior of the paint cup, and wherein the locking mechanism is adapted to attach to the exterior of the paint cup.

23. The liquid container system of claim 22 , wherein the lid extends below a top of the paint cup both on the interior and exterior of the paint cup when the lid is attached to the paint cup.

24. The liquid container system of claim 19 , wherein the locking mechanism is movable relative to a main body of the lid and wherein the locking mechanism is configured to couple the lid and the paint cup.

25. The liquid container system of claim 24 , wherein the locking mechanism has limited mobility relative to a main body of the lid.

26. The liquid container system of claim 19 , wherein the locking mechanism is attached to a top surface of the lid and configured to attach to an exterior of the paint cup.

27. The liquid container system of claim 19 , wherein the locking mechanism further comprises a plurality of internally facing protrusion configured to engage the paint cup in an assembled state when the lid and the paint cup are coupled.

28. The liquid container system of claim 27 , wherein the plurality of internally facing protrusion is configured to couple the lid to the paint cup at separate and discrete portions of the exterior of the paint cup.

29. The liquid container system of claim 19 , wherein the locking mechanism configured to couple the lid to the paint cup at separate and discrete portions of the exterior of the paint cup.

30. The liquid container system of claim 19 , wherein the lid is secured to the paint cup using a plurality of non-threaded coupling members.

31. The liquid container system of claim 19 , wherein the lid does not have a plurality of external facing threads for securing the lid to the paint cup.

32. The liquid container system of claim 1 , wherein the lid extends below a top of the paint cup both on the interior and exterior of the paint cup when the lid is attached to the paint cup.

33. The liquid container system of claim 1 , wherein the lid does not have external facing threads for securing the lid to the paint cup.

Assignees

• Saint Gobain Abrasives Inc
• Saint Gobain Abrasifs Sa

Inventors

• Gerson Ronald L
• Lapointe Pierre
• Brunell Robert A

Classifications

• B05B7/2405

  using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle (B05B7/2459 - B05B7/247 take precedence) · CPC title

• B05B7/24

  with means, e.g. a container, for supplying liquid or other fluent material to a discharge device (B05B7/14, B05B7/16, B05B11/00 take precedence) · CPC title

• B05B7/2481

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

• B05B7/2478

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

• B05B7/2408 Primary

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