Drywall texture application device

• US 9,889,456 B2
• Filed: 03/09/2015
• Issued: 02/13/2018
• Est. Priority Date: 04/23/2014
• Status: Active Grant

• Current Assignee: SprayNoz, LLC
• Original Assignee: SprayNoz, LLC
• Inventors: Vanvalkenburgh, David
• Primary Examiner(s): Hall, Arthur O
• Assistant Examiner(s): Zhou, Joel
• Application Number:
  US14/642,184
• Publication Number:
  US 20150306612A1
• Time in Patent Office: 1,072 Days
• Field of Search: 239 8, 239306, 239314, 239418
• CPC Class Codes: B05B 7/0884 the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being aligned
• CPC Class Codes: B05B 7/2429 the carried liquid and the main stream of atomising fluid being brought together after discharge B05B7/2435 takes precedence
• CPC Class Codes: B05B 7/2464 a liquid being fed by mechanical pumping from the container to the nozzle
• CPC Class Codes: B05B 7/2491 characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
• CPC Class Codes: G10K 11/178 by electro-acoustically regenerating the original acoustic waves in anti-phase
• CPC Class Codes: H04R 1/22 for obtaining desired frequency characteristic only circuit for combining transducers having different responses H04R3/00; for hearing aids H04R25/407
• CPC Class Codes: H04R 2410/03 Reduction of intrinsic noise in microphones
• CPC Class Codes: H04R 3/04 for correcting frequency response

Abstract

A device for applying drywall texture material to a surface is provided. The device generally comprises a hollow tube for holding drywall joint compound, a spray nozzle with a removably attached air hose, a piston, and a ramrod. The device allows users to easily apply drywall joint compound to a surface to create various surface textures.

Claims

1. A drywall texture application device, comprising:

a hollow tube having a first end and a second end;

a piston slidably disposed within the second end of the tube;

a ramrod attached to the piston and extending toward the second end of the hollow tube;

a spray nozzle connected to the first end of the hollow tube;

the spray nozzle comprising an inner channel, a fluid nozzle, an air cap having an inner aperture interchangeably attached thereto, and a connector connectable to an external air source, the fluid nozzle having a proximal end and a distal end, the fluid nozzle having an entire linear length with a common cross-sectional diameter along the entire linear length, the fluid nozzle being imperforate along the entire linear length, the distal end forming a single output orifice forward of the air cap allowing unrestricted linear passage of the drywall mud through the single output orifice; and

the inner channel comprising a first chamber and a second chamber, the first chamber having an inlet in communication with the hollow tube and an outlet in communication with the fluid nozzle, the second chamber having an inlet in communication with the connector and an outlet in communication with the air cap;

wherein depressing the piston causes material within the tube to be forced into the first chamber and expelled therefrom the fluid nozzle.

2. The drywall texture application device of claim 1, wherein the air cap is further defined as having at least two apertures forming air exit ports for the discharge of air, the apertures being arranged in a vertical plane, the distal end of the fluid nozzle projecting forwardly of the vertical plane.

3. The drywall texture application device of claim 1, wherein the spray nozzle is removably connected to the first end of the tube.

4. The drywall texture application device of claim 1, wherein the connector comprises a removably attached air hose.

5. The drywall texture application device of claim 4, further comprising a valve disposed between and in fluid communication with the spray nozzle and the removably attached air hose.

6. The drywall texture application device of claim 5, wherein the valve is a ball valve.

7. The drywall texture application device of claim 5, wherein the removably attached air hose is configured to connect to an external compressed air supply.

8. The drywall texture application device of claim 1, wherein the ramrod comprises an attached handle member.

9. The drywall texture application device of claim 1, wherein the air cap fittings are slidably mounted along the fluid nozzle and removably attached to the spray nozzle.

10. The drywall texture application device of claim 9, wherein the air cap fittings are removably attached to the spray nozzle via a threaded connection.

11. The drywall texture application device of claim 2, wherein the air cap fittings further comprise at least one outer aperture disposed around the inner aperture, the at least one outer aperture being in fluid communication with the connector.

12. The drywall texture application device of claim 1, wherein air from the external air source exits through the at least one outer aperture and disperses the material expelled from the fluid nozzle.

13. The drywall texture application device of claim 2 wherein the fluid nozzle is further defined as having an exit point adjustable along a horizontal plane, the fluid nozzle being slidably adjustable to increase and decrease the distance between the distal end of the fluid nozzle and the vertical plane of the air exit ports allowing for different spray patterns.

14. The drywall texture application device of claim 13 further comprising a screw hole and a set screw centrally located in the housing, the set screw configured to radially engage the fluid nozzle preventing axial movement of the fluid nozzle when engaged.

15. The drywall texture application device of claim 1 wherein the spray nozzle is angled.

16. A drywall texture application device, comprising:

a hollow tube having a first end and a second end;

a piston slidably disposed within the second end of the tube;

a ramrod attached to the piston and extending toward the second end of the hollow tube;

a spray nozzle connected to the first end of the hollow tube;

the spray nozzle having an inner channel, a fluid nozzle, and an air cap, the fluid nozzle having a proximal end and a distal end, the fluid nozzle having an entire linear length with a common cross-sectional diameter along the entire linear length, the fluid nozzle being imperforate along the entire linear length, the distal end forming a single output orifice allowing unrestricted linear passage of the drywall mud through the single output orifice, the air cap having at least two apertures for the discharge of air, the apertures being arranged in a vertical plane, the distal end of the fluid nozzle projecting forwardly of the vertical plane;

the inner channel comprising a first chamber and a second chamber, the first chamber having an inlet in communication with the hollow tube and an outlet in communication with the fluid nozzle, the second chamber having an inlet in communication with the connector and an outlet in communication with the air cap;

the fluid nozzle having an exit point adjustable along a horizontal plane, the fluid nozzle being slidably adjustable to increase or decrease the distance between the distal end of the fluid nozzle and the vertical plane of the air exit ports allowing for different spray patterns;

wherein depressing the piston causes material within the tube to be forced into the first chamber and expelled therefrom the fluid nozzle; and

wherein air from the external air source exits through the at least one outer aperture and disperses the material expelled from the fluid nozzle.