NOZZLE ASSEMBLY

• US 20070029407A1
• Filed: 09/18/2006
• Published: 02/08/2007
• Est. Priority Date: 08/24/2004
• Status: Active Grant

• Current Assignee: Roll, Inc.
• Original Assignee: Roll, Inc.
• Inventors: RAPPIN, CRAIG
• Granted Patent: US 7,559,490 B2
• Time in Patent Office: Days
• US Class Current: 239/340
• CPC Class Codes: A62C 31/02 Nozzles specially adapted for fire-extinguishing
• 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 7/2475 comprising a container carried on the back of the user
• CPC Class Codes: Y10T 137/0396 Involving pressure control

Abstract

A liquid spray nozzle assembly for an outlet pipe of an air blower, the nozzle assembly includes an outer annular member adapted to be secured to the outlet pipe, an inner member radially spaced from and secured to the outer member to define air flow passages, the inner member having a central opening and a lower surface with vanes extending therefrom; and a supply pipe extending into the central opening such that the air flowing through the central opening will act to shear the liquid exiting the supply pipe against the edge of the opening to break up the liquid into droplets that will be carried along in a dispersed pattern with the air flowing between the outer annular member and the inner member.

Claims

1. A liquid spray nozzle assembly for an outlet pipe of an air blower, the nozzle assembly comprising:

an outer annular member adapted to be secured to the outlet pipe;

an inner member radially spaced from and secured to said outer member to define air flow passages, the inner member having a central opening and a lower surface with vanes extending therefrom; and

a supply pipe extending into said central opening whereby the air flowing through said central opening will act to shear the liquid exiting the supply pipe against the edge of the opening to break up the liquid into droplets that will be carried along in a dispersed pattern with the air flowing between the outer annular member and the inner member.

2. The assembly of claim 1, wherein the inner member is concentric to said outer member.

3. The assembly of claim 1, wherein the inner member further includes an upper surface that is outwardly tapered towards the central opening.

4. The assembly of claim 1, wherein the outer annular member includes a protrusion to define a channel for receiving a section of the supply pipe for the intake of said liquid.

5. The assembly of claim 1, wherein the outer annular member includes a pair of extending members, each having a means for securing the outer annular member to said outlet pipe.

6. The assembly of claim 1, wherein the vanes are arcuate shaped.

7. The assembly of claim 1, wherein the inner member is secured to the outer annular member by a plurality of support members.

8. The assembly of claim 7, wherein at least one of the support members includes a ledge positioned to receive a clip defined by the supply pipe such that the supply pipe is attached to said at least one support member.

9. An liquid disbursement end cap for use with a blower tube of an air blower, the end cap comprising:

an outer member having a means for being secured to said blower tube;

an inner member centrally positioned within the outer member and secured thereto to define airflow openings between the outer member and the inner member for exiting airflow, the inner member having a substantially centrally positioned aperture; and

a conduit having an inlet for receiving a liquid and an outlet positioned near the centrally positioned aperture for releasing liquid centrally within the exiting airflow.

10. The end cap of claim 9, wherein the inner member includes a lower surface, a plurality of vanes extending from the lower surface to further direct airflow into the centrally positioned aperture.

11. The end cap of claim 10, wherein each vane is arcuate shaped.

12. The end cap of claim 9, wherein the inner member includes an outer surface that is tapered towards the centrally positioned aperture.

13. The end cap of claim 9, wherein the inner member is secured to the outer member by at least one support member.

14. The end cap of claim 13, wherein at least one support member includes a ledge for positioning a clip defined by the conduit such that a portion of the conduit is aligned with the at least one support member.

15. The end cap of claim 9, wherein the outer member includes a protrusion, the protrusion having a channel defined therein for receiving the inlet of the conduit.

16. The end cap of claim 9, wherein the inner member is concentric to said outer member.

17. The end cap of claim 9, wherein the outer member is annularly shaped.

18. A liquid spray nozzle assembly for an outlet pipe of an air blower, the nozzle assembly comprising:

an outer annular member adapted to be secured to the outlet pipe;

an inner concentric member radially spaced from and secured to said outer member to define air flow passages, the inner concentric member has an upper surface with a central tapered opening defined therein and has a lower surface with vanes extending therefrom that are arcuately shaped towards said tapered opening; and

a supply pipe extending into said central opening whereby the air flowing through said central opening will act to shear the liquid exiting the supply pipe against the edge of the tapered opening to brake up the liquid into droplets that will be carried along in a dispersed pattern with the air flowing between the outer annular member and the inner member.

19. The assembly of claim 18, wherein the inner concentric member is secured to the outer annular member by a plurality of support members.

20. The assembly of claim 19, wherein at least one of the support members includes a ledge positioned to receive a clip defined by the supply pipe such that the supply pipe is attached to said at least one support member.