Switcher nozzle high efficiency flow insert

Patent metadata

Field	Value
Publication number	US-11148151-B2
Application number	US-202016779123-A
Country	US
Kind code	B2
Filing date	Jan 31, 2020
Priority date	Feb 19, 2019
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

A nozzle assembly includes a hollow nozzle body having a central bore and a plurality of ports extending through the body from the central bore; a switching valve assembly disposed in the central bore that directs fluid flow to ports upon application of fluid flow above a predetermined threshold to the inlet and direct fluid flow to different ports upon fluid flow having subsequently dropped below the predetermined threshold and then exceeding the predetermined threshold; and a flow insert configured to replace the switching valve assembly for directing flow through all of the ports when switching functionality is not needed. This flow insert may be made of a low pressure material such as a polymer.

First claim

What is claimed is:

1. A nozzle assembly comprising:
an inlet nut fastenable to a hollow shaft or a high pressure hose;
a hollow nozzle body having a front end portion, a cylindrical rear inlet portion configured to engage the inlet nut, a central bore through at least the cylindrical rear inlet portion of the nozzle body, and a plurality of ports extending through the body from the central bore, wherein the nozzle body is configured to withstand an operating pressure of at least 5 k psi;
a switching valve assembly removably captured within at least a rear portion of the central bore of the nozzle body by the inlet nut; and
a generally cylindrical flow insert configured to be removably disposed within the central bore in place of the switching valve assembly when switching functionality of the switching valve assembly is not needed, wherein the flow insert has a plurality of through passages each configured to communicate with at least one of the ports and wherein the flow insert cannot withstand the operating pressure of at least 5 k psi when the flow insert is not installed and captured within the central bore of the hollow nozzle body.

2. The nozzle assembly according to claim 1 wherein a plurality of the ports exit the front end portion of the nozzle body from the central bore and a plurality of the ports exit laterally from the nozzle body.

3. The nozzle assembly according to claim 2 wherein the flow insert has two axial through passages configured to align with the plurality of ports exiting the front end portion of the nozzle body from the central bore.

4. The nozzle assembly according to claim 2 wherein the flow insert has two axial through passages configured to align with the ports exiting laterally from the nozzle body.

5. The nozzle assembly according to claim 1 wherein the nozzle body has one or more guide pins protruding into the central bore to orient the switching valve assembly therein and orient the flow insert when the flow insert is installed within the central bore.

6. The nozzle assembly according to claim 5 wherein the flow insert has one or more axial grooves each for engaging each one of the one or more guide pins.

Assignees

• Stoneage Inc

Inventors

• Schneider Joseph A
• Tormey Timothy M D

Classifications

• B05B1/1609 Primary

  with a selecting mechanism comprising a lift valve (B05B1/1681 takes precedence) · CPC title

• B05B1/02

  designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, {or having an outlet of particular shape}(B05B1/26, B05B1/28, B05B1/34 take precedence) · CPC title

• F16L2101/50

  Pulling cables or the like · CPC title

• B05B13/0627

  Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies (B05B13/0645 takes precedence) · CPC title

• B05B1/169

  having three or more selectively effective outlets · CPC title