Nozzle assembly

• US 7,559,490 B2
• Filed: 09/18/2006
• Issued: 07/14/2009
• Est. Priority Date: 08/24/2004
• Status: Expired due to Fees

• Current Assignee: Roll, Inc.
• Original Assignee: Roll, Inc.
• Inventors: Rappin, Craig
• Primary Examiner(s): Tran; Len
• Assistant Examiner(s): REIS, RYAN ALEXANDER
• Application Number:
  US11/532,555
• Publication Number:
  US 20070029407A1
• Time in Patent Office: 1,030 Days
• Field of Search: 239/152, 239/154, 239/289, 239/304, 239/369, 239/419, 239/340
• US Class Current: 239/154
• 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 annular member by a plurality of support members 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 air flowing through said central opening will act to shear liquid exiting the supply pipe against an edge of the central opening to break up the liquid into droplets that will be carried along in a dispersed pattern by the air flowing between the outer annular member and the inner member;

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.

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 intake of said liquid.

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

6. A 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 by at least one support member 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 the liquid centrally within the exiting airflow;

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.

7. The end cap of claim 6, wherein the inner member includes a lower surface having a plurality of vanes extending therefrom to further direct airflow through the centrally positioned aperture.

8. The end cap of claim 7, wherein each vane is arcuate shaped.

9. The end cap of claim 6, wherein the inner member includes an outer surface that is tapered towards the centrally positioned aperture.

10. The end cap of claim 6, wherein the outer member includes a protrusion, the protrusion having a channel defined therein for receiving the inlet of the conduit.

11. The end cap of claim 6, wherein the inner member is concentric to said outer member.

12. The end cap of claim 6, wherein the outer member is annularly shaped.

13. 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 by a plurality of support members to define air flow passages, the inner concentric member having an upper surface with a central tapered opening defined therein and a lower surface with vanes extending therefrom that are arcuately shaped towards said central tapered opening; and

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

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.