Portable paint system

Abstract

A portable cart is provided for roller application viscous coating material using a pressure feed roller. The cart holds a resin container and an activator container, each of which is separately but optionally heated. Material transfer lines run from the containers to a static mixing tube connected to a pressure fed rolling element removably connected to a handle. One or more motors drive one or more pumps to pump the activator and resin through the static mixing tube and rolling element. A switch on the handle controls the pumps and thus controls the material supplied to the rolling element.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features and advantages of the various embodiments disclosed herein will be better understood with respect to the following description and drawings, in which like numbers refer to like parts throughout, and in which:

FIG. 1 is a schematic view of a roller system;

FIG. 2 is a schematic view of components used in the roller system of FIG. 1;

FIG. 3 is a plan view of an electrical control panel used in the roller system of FIG. 1;

FIG. 4 is a plan view of a pressure control panel used in the roller system of FIG. 1;

FIG. 5 is a schematic view of a pumping arrangement used in the roller system of FIG. 1;

FIG. 6 is a side plan view of a pressure feed roller, static mixing tube and handle;

FIG. 7 is an exploded view of one exemplary pressure feed roller for use with the roller system of FIG. 1;

FIG. 8 is a view of a further embodiment of a pressure feed roller, handle and static mixing tube;

FIG. 9 is a sectional view of a further embodiment of a pump;

FIG. 10 is a partial sectional view taken along 10-10 of FIG. 9;

FIG. 11 is a side view of a pressure feed roller with the rolling element cut-away;

FIG. 12 is a cross-section of an end cap for the pressure feed roller of FIG. 11; and

FIG. 13 is a cross sectional view of a mixing tube connected to a manifold and bent fluid tube;.

Claims

1. A portable system for roller application of a coating material, comprising: at least two containers for holding at least two coating materials during use of the system;first and second material transfer lines each having a first end adapted to be placed in fluid communication with a different one of the containers, each material transfer line having a second end;a static mixing tube and a pressure fed rolling element for roller application of the coating material, the pressure feed roller being in fluid communication with an outlet of the static mixing tube and an inlet end of the static mixing tube being in fluid communication with the second ends of the first and second material transfer lines;at least one pump arranged to pump material through the first and second transfer lines to the static mixing tube during use of the system and in response to a manually activated switch located adjacent the mixing tube and roller.

2. The portable roller system of claim 1, further comprising a cart holding the first and second containers.

3. The portable roller system of claim 1, further comprising a cart holding the first and second containers and a heater in thermal communication with the at least two containers, the heater providing sufficient heat to maintain the containers at a suitable operating temperature when coating material is placed in the containers during use of the system.

4. The portable roller system of claim 1, further comprising a cart having an enclosed space and holding at least a major portion of the first and second containers in that enclosed space, the cart having a heater in the enclosed space and in thermal communication with the at least two containers.

5. The portable roller system of claim 1, wherein the rolling element is releasably fastened to a handle.

6. The portable roller system of claim 1, wherein the at least one pump comprises one motor driving two pumps with each of the two pumps pumping material through one of the first and second material transfer lines during use of the system.

7. The portable roller system of claim 1, wherein the at least one pump comprises two motors each driving a separate pump.

8. The portable roller system of claim 1, wherein the at least one pump comprises a first and second pump with the first pump in fluid communication with a first pressure regulator which recirculates material from the first container to control the pressure in the first material line, and wherein the second first pump is in fluid communication with a second pressure regulator which recirculates material from the second container to control the pressure in the first material line.

9. The portable roller system of claim 1, wherein the rolling element is connected to a handle having a switch in electrical communication with the at least one pump to activate the pump.

10. The portable roller system of claim 1, wherein there is a single motor driving two pumps at pump different speeds so more material passes through one material transfer line than the other material transfer line.

11. The portable roller system of claim 1, wherein the static mixing tube is releasably connected to the pressure fed rolling element.

12. A portable system for roller application of a coating material, comprising: a portable cart having an enclosed interior;at least two containers for holding at least two coating materials during use of the system, the containers having a major portion enclosed within the interior of the cart;first and second material transfer lines each having a first end adapted to be placed in fluid communication with a different one of the containers, each material transfer line having a second end;a static mixing tube having an inlet end in fluid communication with the second end of each material transfer line and having a mixing tube outlet end;a pressure feed roller having a rolling element rollaby supported by a bent fluid tube which is in fluid communication with the outlet end of the static mixing tube.means for moving coating material from the first and second containers, through the material lines to the pressure feed roller during use of the system.

13. The portable system of claim 12, wherein the means comprises a separate pump in fluid communication with each material transfer line.

14. The portable system of claim 12, further comprising a heater located to heat the material in at least one of the containers to a temperature suitable for application by the rolling element.

15. A portable system for roller application of viscous coating material, comprising: a portable cart having wheels and an enclosed interior;at least two containers on the cart, each container adapted to hold a coating material during use of the system;a first heater in conductive thermal communication with the at least two containers;first and second material transfer lines each having a first end adapted to connect to a different one of the containers, each material transfer line having a second end;a static mixing tube having an inlet end in fluid communication with the second end of the material transfer lines and having an outlet end;a pressure feed roller for roller application the coating material, the roller having a rolling element in fluid communication with the outlet end of the static mixing tube;at least one pump located and configured to pump material from the containers through each material transfer line to the static mixing tube.

16. The system of claim 15, wherein the at least one pump comprises a single motor driving a separate pump associated with each material transfer line.

17. The system of claim 15, wherein the at least one pump comprises a first motor and first pump located to pump material through the first material transfer line to the static mixing tube, and a second motor and second pump located to pump material through the second material transfer line to the static mixing tube.

18. The system of claim 15, wherein the pressure feed roller and static mixing tube are fastened to a handle.

19. The system of claim 15, wherein the pressure feed roller and static mixing tube are releasably fastened to a common handle.

20. The system of claim 15, wherein the first container contains an activator and the second container contains a resin.

21. The system of claim 15, further comprising a heater inside the cart and connected to a power source to heat the containers.

22. The system of claim 15, further comprising a switch on a handle to which the pressure feed roller is connected, the switch being placed in electrical communication with the motor to regulate the material pumped to the rolling element.

23. The system of claim 15, further comprising an elongated handle to which the pressure feed roller is attached, with the static mixing tube being fastened generally parallel to the handle and a switch regulating the pump speed connected to the handle.

24. The system of claim 15, further comprising an elongated handle to which the pressure feed roller is releasably connected by a bent fluid tube, with the static mixing tube comprising a portion of the bent tube.

25. A pressure feed roller having a bent fluid tube and a pressure rolling element rollably supported on a distal end of the bent fluid tube, comprising: a handle having a manually operated electric switch connected to the handle;a manifold having at least two inlet fittings each adapted to releasably connect to distal ends of flexible and elongated material transfer lines, the manifold having an outlet in fluid communication with the inlet fittings;a static mixing tube having an inlet and outlet, with the static mixing tube inlet being in fluid communication with the manifold outlet, the mixing tube outlet being in fluid communication with the bent fluid tube.

26. The pressure feed roller of claim 25, wherein the manifold is fastened to the handle.

27. The pressure feed roller of claim 25, wherein at least one of the mixing tube and manifold is fastened to the handle.

28. The pressure feed roller of claim 25, wherein the mixing tube comprises a static mixing element placed inside a portion of the bent fluid tube.

29. The pressure feed roller of claim 25, wherein the switch electrically activates at least one pump to provide two different coating materials through material lines connected to the manifold.

30. The pressure feed roller of claim 25, wherein the static mixing tube is located inside the handle.

31. An apparatus for use with a pressure feed roller having a bent fluid tube and a pressure rolling element rollably supported on a distal end of the bent fluid tube, the bent fluid tube having a rotatable fluid coupling on an inlet end of the tube, comprising: a manifold having at least two inlet fittings adapted to releasably connect to distal ends of material transfer lines, the manifold having an outlet in fluid communication with the at least two inlet fittings each connected to a material transfer line with at least one material transfer line connected to a container having a heater in thermal communication therewith;a static mixing tube having an inlet and outlet, with the static mixing tube inlet being in fluid communication with the manifold outlet, the mixing tube outlet being in fluid communication with a fitting configured to fasten to the rotatable fluid coupling.

32. The apparatus of claim 31, further comprising a handle connected to at least one of the manifold or mixing tube.

33. The apparatus of claim 31, wherein one material transfer line contains a urethane and the other material transfer line contains an isocyanate.

34. The apparatus of claim 31, wherein one material transfer lines is connected to a container of activator and one material transfer line is connected to a container of resin.