Apparatus and method for applying coatings to a surface

• US 20080268144A1
• Filed: 04/26/2007
• Published: 10/30/2008
• Est. Priority Date: 04/26/2007
• Status: Active Grant

• Current Assignee: LJB Group, LLC
• Original Assignee: Jack H. Wilson
• Inventors: Wilson, Jack H.
• Granted Patent: US 7,963,719 B2
• Time in Patent Office: Days
• US Class Current: 427/196
• CPC Class Codes: B05B 15/25 using moving elements, e.g. rotating blades
• CPC Class Codes: B05B 7/0433 with one inner conduit of gas surrounded by an external conduit of liquid upstream the mixing chamber
• CPC Class Codes: B05B 7/1418 comprising means for supplying an additional liquid
• CPC Class Codes: B05B 7/1495 and with separate outlets for the particulate material and the liquid
• CPC Class Codes: B05B 7/2435 the carried liquid and the main stream of atomising fluid being brought together by parallel conduits placed one inside the other
• CPC Class Codes: B05B 7/2478 Gun with a container which, in normal use, is located above the gun
• CPC Class Codes: B05D 1/34 Applying different liquids or other fluent materials simultaneously
• CPC Class Codes: B05D 2401/32 applied as powders
• CPC Class Codes: B05D 2601/00 Inorganic fillers
• CPC Class Codes: E01C 23/166 Means for dispensing particulate material on to freshly applied markings or into the marking material after discharge thereof, e.g. reflective beads, grip-improving particles
• CPC Class Codes: E01C 23/22 by spraying E01C23/206 takes precedence

Abstract

A method and apparatus for applying various different coating on surfaces including but not limited to roadways, parking lots, bridge decks, airport runways, offshore heliports and workboat walkways. Preferably, an applicator is provided that allows numerous different coatings to be applied to a surface. The coatings may be protective, decorative, non-skid and/or reflective in nature. Preferably, the applicator allows for the dispensing of two or more materials in at least two different manners (e.g., (i) two or more materials simultaneously applied to the surface to be coated; and, (ii) one material applied followed by application of one or more additional materials). Preferably, the applicator is lightweight and compact so that a single individual can carry the applicator while applying a coating to a surface to be coated. This allows the applicator to be used to coat surfaces in constricted areas including but not limited to workboat walkways. The applicator, in its preferred form, permits a non-skid coating to be applied in a single step with the aggregate being encapsulated by the binder or coating material to prolong the life of the non-skid surface.

Claims

1. An apparatus for applying a coating to a surface, said apparatus comprising:

(a) a hopper assembly having a first compartment and a second compartment operably associated with said first compartment, said first compartment being configured to receive and store an aggregate, said second compartment being configured to receive and store a coating substance, said hopper assembly being further configured such that the aggregate does not mix with the coating substance when the aggregate and the coating substance are stored in said first compartment and said second compartment, respectively; and

,

(b) means for simultaneously dispensing the aggregate and the coating substance from said first compartment and said second compartment so that at least a portion of the aggregate stored in said first compartment mixes with the coating substance after the aggregate and the coating substance are dispensed from said first compartment and said second compartment, respectively.

2. An apparatus as set forth in claim 1, wherein:

(a) said means for simultaneously dispensing includes a first pressurized air gun operably associated with said first compartment and a second pressurized air gun operably associated with said second compartment.

3. An apparatus as set forth in claim 2, wherein:

(a) said first pressurized air gun is disposed adjacent said second pressurized air gun such that a single individual can operate both said first pressurized air gun and said second pressurized air gun.

4. An apparatus as set forth in claim 3, further including:

(a) an agitator operably associated with said second compartment for agitating the coating substance stored therein.

5. An apparatus as set forth in claim 4, further including:

(a) a pressurized air system, said pressurized air system providing pressurized air at a first pressure to both said agitator and said first pressurized air gun, said pressurized air system further providing pressurized air at a second pressure to said second pressurized air gun, the second pressure being higher than the first pressure.

6. An apparatus as set forth in claim 1, wherein:

(a) said hopper assembly is portable.

7. An apparatus for applying a coating to a surface, said apparatus comprising:

(a) a hopper assembly having a first compartment and a second compartment operably associated with said first compartment, said first compartment being configured to receive and store a first material, said second compartment being configured to receive and store a second material, said first material being different from said second material;

(b) a first applicator gun operably associated with said first compartment for dispensing said first material from said first compartment and onto a surface to be coated;

(c) a second applicator gun operably associated with said second compartment for dispensing said second material from said second compartment and onto a surface to be coated; and

,

(d) a support member for supporting said hopper assembly, said first applicator gun and said second applicator gun about an individual'"'"'s body to allow the individual to carry said hopper assembly, said first applicator gun and said second applicator gun while material is being dispensed from said hopper assembly.

8. An apparatus as set forth in claim 7, wherein:

(a) said first applicator gun is disposed relative to said second applicator gun such that the aggregate mixes with the coating substance at a point of impact with a surface to be coated.

9. An apparatus as set forth in claim 7, wherein:

(a) said first applicator gun is disposed below said first compartment and said second applicator gun is disposed below said second compartment.

10. An apparatus as set forth in claim 7, wherein:

(a) the aggregate is sand.

11. An apparatus as set forth in claim 7, wherein:

(a) the coating substance is a cementitious mixture.

12. An apparatus as set forth in claim 7, wherein:

(a) said hopper assembly is formed from polyethylene.

13. An apparatus as set forth in claim 7, wherein:

(a) a first rubber hose connects said first compartment to said first applicator gun; and

,

(a) a second rubber hose connects said second compartment to said second applicator gun.

14. An apparatus for applying a coating to a surface, said apparatus comprising:

(a) a hopper assembly having a first compartment and a second compartment operably associated with said first compartment, said first compartment being configured to receive and store a first material, said second compartment being configured to receive and store a second material, the first material having at least one property different from the second material;

(b) a first dispenser operably associated with said first compartment for dispensing the first material from said first compartment and onto a surface to be coated; and

,

(c) a second dispenser operably associated with said second compartment for dispensing the second material from said second compartment and onto a surface to be coated, said second dispenser being disposed relative to said first dispenser such that the second material mixes with the first material upon contacting a surface to be coated.

15. An apparatus as set forth in claim 14, wherein:

(a) said first dispenser is a first pressurized air gun.

16. An apparatus as set forth in claim 15, wherein:

(a) said second dispenser is a second pressurized air gun.

17. An apparatus as set forth in claim 15, further including:

(a) a pressurized air system, said pressurized air system providing pressurized air at a first pressure to said first pressurized air gun, said pressurized air system further providing pressurized air at a second pressure to said second pressurized air gun, the second pressure being higher than the first pressure.

18. A method for applying a coating to a surface, said method comprising the steps of:

(a) providing a hopper assembly having a first compartment and a second compartment connected to said first compartment, said first compartment being configured to receive and store an aggregate, said second compartment being configured to receive and store a coating substance, said hopper assembly being further configured such that the aggregate does not mix with the coating substance when the aggregate and the coating substance are stored in said first compartment and said second compartment, respectively;

(b) providing at least a first dispenser for dispensing the aggregate and the coating substance from said first compartment and said second compartment; and

,

(c) simultaneously dispensing the aggregate and the coating material from said hopper assembly such that said coating material encapsulates at least a portion of said aggregate.

19. A method as recited in claim 18, wherein:

(a) the aggregate is sand.

20. A method as recited in claim 19, wherein:

(a) the coating substance is a cementitious mixture.

21. An apparatus for applying a coating to a surface, said apparatus comprising:

(a) a hopper assembly having a first compartment and a second compartment operably associated with said first compartment, said first compartment being configured to receive and store a first material, said second compartment being configured to receive and store a second material, said first material being different from said second material;

(b) a first applicator gun operably associated with said first compartment for dispensing said first material from said first compartment and onto a surface to be coated;

(c) a second applicator gun operably associated with said second compartment for dispensing said second material from said second compartment and onto a surface to be coated; and

,

(d) a pressurized air system for providing pressurized air to said first applicator gun and pressurized air to said second applicator gun wherein pressurized air directed to said first applicator gun is at a different air pressure than pressurized air directed to said second applicator gun.

22. An apparatus as set forth in claim 21, further including:

(a) an agitator operably associated with said second compartment for agitating the second material.

23. An apparatus as set forth in claim 22, wherein:

(a) the first material is an aggregate and the second material is a coating substance; and

,

(b) said pressurized air system supplies pressurized air to said agitator to drive said agitator, said pressurized air supplied to said agitator is at a pressure equal to the pressure of the pressurized air supplied to said first applicator gun.

24. A method of applying a non-skid coating to a surface, said method comprising the steps of:

(a) providing a hopper assembly having a first compartment and a second compartment connected to said first compartment, said first compartment being configured to receive and store an aggregate, said second compartment being configured to receive and store a coating substance, said hopper assembly further including at least a first dispenser for dispensing the aggregate and the coating substance from said first compartment and said second compartment; and

,

(c) dispensing the aggregate from said first compartment; and

,

(d) during step (c) dispensing the coating substance from said second compartment.

25. An apparatus for applying a coating to a surface, said apparatus comprising:

(a) a hopper assembly having a first compartment and a second compartment operably associated with said first compartment, said first compartment being configured to receive and store a first material, said second compartment being configured to receive and store a second material, said hopper assembly being further configured such that the first material does not mix with the second material while the first material and the second material are stored in said first compartment and said second compartment, respectively; and

,

(b) a dispenser system for dispensing the first material and the second material from said first compartment and said second compartment, respectively, said dispenser system being configured to simultaneously dispense the first material and the second material from said first compartment and said second compartment, said dispenser system further being configured to dispense one of the first material and the second material from a corresponding compartment without dispensing the other of the first material and the second material from a corresponding compartment.

26. An apparatus as set forth in claim 25, further including:

(a) a harness operably connected to said hopper assembly to allow an individual to carry said hopper assembly while material is being dispensed therefrom.

27. An apparatus as set forth in claim 25, wherein:

(a) the first material is a reflective material and the second material is a binding substance to bind the reflective material to the surface to be coated.

28. An apparatus as set forth in claim 25, wherein:

(a) the first material is an aggregate and the second material is a cementitious mixture.