Antistatic paint cup

• US 7,766,250 B2
• Filed: 06/20/2007
• Issued: 08/03/2010
• Est. Priority Date: 06/01/2004
• Status: Expired due to Fees

• Current Assignee: Carlisle Fluid Technologies Incorporated (Carlisle Cos., Inc.)
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Charpie, Mark E., Wisniewski, Ralph A., Kosmyna, Michael J.
• Primary Examiner(s): Ganey; Steven J
• Application Number:
  US11/765,621
• Publication Number:
  US 20070241029A1
• Time in Patent Office: 1,140 Days
• Field of Search: 239/302, 239/328, 239/329, 239/323, 239/345, 239/346, 239/71, 239/74, 239375-379, 239/600, 222/95, 222/105, 222/158, 229/400, 220/23.87, 220/657, 220/495.01, 220/495.02, 220/495.06, 428/922
• US Class Current: 239/1
• CPC Class Codes: B05B 7/2408 characterised by the container or its attachment means to the spray apparatus
• CPC Class Codes: B05B 7/2478 Gun with a container which, in normal use, is located above the gun
• CPC Class Codes: B05B 7/2481 with a flexible container for liquid or other fluent material
• CPC Class Codes: B65D 2213/02 Means for preventing buil-up of electrostatic charges
• CPC Class Codes: Y02W 30/80 Packaging reuse or recycling, e.g. of multilayer packaging bio-packaging Y02W90/10
• CPC Class Codes: Y10S 428/922 Static electricity metal bleed-off metallic stock

Abstract

An antistatic reusable cup holder and fluid supply assembly. One or more of the reusable cup holder, disposable cup, disposable lid, or reusable outer lid is made of an antistatic material. In use, the chargeable particles in a coating mixture do not stick to the disposable cup so that uniformity of the coating mixture is maintained while it is dispensed. A method of maintaining the uniformity of a coating mixture during dispensing is also described.

Claims

1. A reusable cup holder having a side wall, an open upper end, and a lower end, the lower end having an opening therein, a connecting surface at the upper end, the reusable cup holder being adapted to receive a disposable cup;

the reusable cup holder being made of an antistatic material, whereby the antistatic material of the reusable cup holder dissipates a charge, so that chargeable particles do not stick to the disposable cup disposed in the reusable cup holder so that uniformity of a material having chargeable particles therein is maintained while the material having chargeable particles therein is dispensed.

2. The reusable cup holder of claim 1 wherein the antistatic material comprises a polymeric material containing an antistatic additive.

3. The reusable cup holder of claim 2 wherein the antistatic additive is selected from long-chain aliphatic amines and amides, phosphates, quaternary ammonium compounds, polyethylene glycols, glycol esters, ethoxylated long-chain aliphatic amines, polymeric antistatic additives composed of hydrophilic copolymers, intrinsic conductive polymers, polyaniline, polythiophene, conductive fillers, carbon black, metal powder and fibers, graphite fibers, conductive nanofibers, PP-10000AS2 from PolyOne, or combinations thereof.

4. The reusable cup holder of claim 3 wherein the conductive nanofibers comprise carbon nanofibers.

5. The reusable cup holder of claim 2 wherein the polymeric material is selected from polyethylene, or polypropylene.

6. The reusable cup holder of claim 1 wherein the reusable cup holder is see through.

7. A fluid supply assembly comprising:

a flexible, disposable cup having a side wall, an open outlet end, and a closed bottom defining an interior;

a reusable cup holder having a side wall, an open upper end, and a lower end, the lower end having an opening therein, a connecting surface at the upper end, the reusable cup holder being adapted to receive the disposable cup;

a disposable lid having an inner portion and an outer portion, the disposable lid being adapted to fit over the disposable cup, the disposable lid having a fitting integrally connected to the inner portion, the fitting having an opening therethrough; and

a reusable outer lid having an inner portion and a outer portion, the reusable outer lid being adapted to fit over the reusable cup holder, the reusable outer lid having a fitting integrally connected to the inner portion, the fitting of the reusable outer lid having an opening therethrough, the fitting of the disposable lid adapted to fit into the fitting of the reusable outer lid, a complementary connecting surface at the edge of the reusable outer lid, the complementary connecting surface of the reusable outer lid adapted to mate with the connecting surface of the reusable cup holder to seal the reusable cup holder and reusable outer lid together;

wherein at least one of the disposable cup, the reusable cup holder, the disposable lid, or the reusable outer lid is made of an antistatic material, whereby the antistatic material dissipates a charge, so that chargeable particles do not stick to the disposable cup so that uniformity of a material having chargeable particles therein is maintained while the material having chargeable particles therein is dispensed from the fluid supply assembly.

8. The fluid supply assembly of claim 7 wherein the antistatic material comprises a polymeric material containing an antistatic additive.

9. The fluid supply assembly of claim 8 wherein the antistatic additive is selected from long-chain aliphatic amines and amides, phosphates, quaternary ammonium compounds, polyethylene glycols, glycol esters, ethoxylated long-chain aliphatic amines, polymeric antistatic additives composed of hydrophilic copolymers, intrinsic conductive polymers, polyaniline, polythiophene, conductive fillers, carbon black, metal powder and fibers, graphite fibers, conductive nanofibers, PP-10000AS2 from PolyOne, or combinations thereof.

10. The fluid supply assembly of claim 9 wherein the conductive nanofibers comprise carbon nanofibers.

11. The fluid supply assembly of claim 7 wherein the polymeric material is selected from polyethylene, or polypropylene.

12. The fluid supply assembly of claim 7 wherein the at least one of the disposable cup, the reusable cup holder, the disposable lid, or the reusable outer lid is see through.

13. A method of maintaining uniformity of a coating mixture during dispensing comprising:

providing a reusable cup holder and an outer lid having an opening therein, the reusable cup holder adapted to mate with the outer lid;

providing a disposable cup adapted to fit in the reusable cup holder, the disposable cup comprising a side wall, an open outlet end, and a closed bottom defining an interior;

filling the disposable cup with a coating mixture containing chargeable particles;

placing the disposable cup in reusable cup holder;

placing a disposable lid on the disposable cup;

attaching the outer lid to the reusable cup holder, sealing the disposable cup and disposable lid within the reusable cup holder and the outer lid;

connecting the opening in the lid to a spray gun; and

dispensing the coating mixture, the disposable cup collapsing as the coating mixture is dispensed, whereby the chargeable particles in the coating mixture do not stick to the disposable cup so that uniformity of the coating mixture is maintained while it is dispensed;

wherein one or more of the reusable cup holder, the disposable cup, the disposable lid, or the outer lid comprises an antistatic material.

14. The method of claim 13 wherein the antistatic material comprises a polymeric material containing an antistatic additive.

15. The method of claim 14 wherein the polymeric material is selected from polyethylene, or polypropylene.

16. The method of claim 14 wherein the antistatic additive is selected from long-chain aliphatic amines and amides, phosphates, quaternary ammonium compounds, polyethylene glycols, glycol esters, ethoxylated long-chain aliphatic amines, polymeric antistatic additives composed of hydrophilic copolymers, intrinsic conductive polymers, polyaniline, polythiophene, conductive fillers, carbon black, metal powder and fibers, graphite fibers, conductive nanofibers, PP-10000AS2 from PolyOne, or combinations thereof.

17. The method of claim 16 wherein the conductive nanofibers comprise carbon nanofibers.

18. The method of claim 13 wherein one or more of the reusable cup holder, the disposable cup, the disposable lid, or the outer lid is see through.

19. The method of claim 13 wherein the coating mixture is a paint mixture and the chargeable particles are metallic particles, and wherein uniformity of the coating mixture is uniformity of a color of the paint mixture.