Vacuum Breaker

Patent metadata

Field	Value
Publication number	US-2017145672-A1
Application number	US-201615356123-A
Country	US
Kind code	A1
Filing date	Nov 18, 2016
Priority date	Nov 20, 2015
Publication date	May 25, 2017
Grant date	—

Abstract

A vacuum breaker having a supporting rib and a skirted section is disclosed. The supporting rib is configured to be axially aligned with air slots in an outlet tube and provide a more robust vacuum breaker sleeve under extreme operating conditions. The skirted section can prevent leakage through air slots during high back pressure operating conditions.

First claim

What is claimed is:

1 . A vacuum breaker assembly comprising:
a vacuum breaker sleeve including:
a vacuum sleeve body having a first end and a second end, the second end having a skirted section extending from the vacuum sleeve body, the vacuum sleeve body having a first body section and a second body section, the second body section including one or more wall sections circumferentially arranged within the second body section and one or more lip seal sections each having a slit arranged between adjacent wall sections;
a sleeve flange extending radially from the vacuum sleeve body on the first end of the vacuum sleeve body and defining a flange recess in which the first body section is arranged between the sleeve flange and the second body section; and
a supporting rib protruding from an inner surface of the first body section;
a flow insert received within the flange recess and including a plurality of flow apertures.

2 . The vacuum breaker assembly of claim 1 , wherein the supporting rib includes a first arcuate surface, a second arcuate surface, and a rib peak.

3 . The vacuum breaker assembly of claim 2 , wherein the first arcuate surface and the second arcuate surface define a substantially concave shape.

4 . The vacuum breaker assembly of claim 2 , wherein a rib thickness ratio of a rib thickness of the supporting rib to a wall thickness of the first body section is greater than 1.4.

5 . The vacuum breaker assembly of claim 2 , wherein a rib thickness ratio of a rib thickness of the supporting rib to a wall thickness of the first body section is greater than 1.6.

6 . The vacuum breaker assembly of claim 2 , wherein a rib thickness ratio of a rib thickness of the supporting rib to a wall thickness of the first body section is between 1.3 and 1.7.

7 . The vacuum breaker assembly of claim 1 , wherein the skirted section includes a first skirted portion arranged between the ribs and a second skirted portion.

8 . The vacuum breaker assembly of claim 7 , wherein the first skirted portion defines a first skirted thickness which is greater than a second skirted thickness defined by the second skirted portion.

9 . The vacuum breaker assembly of claim 8 , wherein the skirted section defines a step change in thickness from the first skirted thickness to the second skirted thickness.

10 . The vacuum breaker assembly of claim 1 , wherein the first body section defines a first body thickness which is greater than a second body thickness defined by the second body section.

11 . A vacuum breaker assembly configured to be installed in an outlet tube having a plurality of circumferentially arranged air slots, the vacuum breaker assembly comprising:
a vacuum breaker sleeve including:
a vacuum sleeve body having a first end and a second end, the second end having a skirted section extending from the vacuum sleeve body;
a sleeve flange extending radially from the vacuum sleeve body on the first end of the vacuum sleeve body and defining a flange recess; and
a supporting rib protruding from an inner surface of the vacuum sleeve body and axially aligned with the air slots;
a flow insert received within the flange recess and including a plurality of flow apertures.

12 . The vacuum breaker assembly of claim 11 , wherein the vacuum sleeve body includes one or more wall sections circumferentially arranged within the vacuum sleeve body and one or more lip seal sections each having a slit arranged between adjacent wall sections.

13 . The vacuum breaker assembly of claim 11 , wherein the supporting rib includes a first arcuate surface, a second arcuate surface, and a rib peak.

14 . The vacuum breaker assembly of claim 13 , wherein the first arcuate surface and the second arcuate surface define a substantially concave shape.

15 . The vacuum breaker assembly of claim 13 , wherein a rib thickness ratio of a rib thickness of the supporting rib to an adjacent wall thickness is greater than 1.4.

16 . The vacuum breaker assembly of claim 13 , wherein a rib thickness ratio of a rib thickness of the supporting rib to an adjacent wall thickness is greater than 1.6.

17 . The vacuum breaker assembly of claim 13 , wherein a rib thickness ratio of a rib thickness of the supporting rib to an adjacent wall thickness is between 1.3 and 1.7.

18 . The vacuum breaker assembly of claim 11 , wherein the skirted section includes a first skirted portion arranged between the ribs and a second skirted portion.

19 . The vacuum breaker assembly of claim 18 , wherein the first skirted portion defines a first skirted thickness which is greater than a second skirted thickness defined by the second skirted portion.

20 . The vacuum breaker assembly of claim 19 , wherein the skirted section defines a step change in thickness from the first skirted thickness to the second skirted thickness.

Assignees

• Zurn Ind Llc

Inventors

• Leon-Quintero Cesar J
• Ancona Brandon
• Funari Michael A

Classifications

• E03C1/102 Primary

  using an air gap device · CPC title

• E03D3/00

  Flushing devices operated by pressure of the water supply system {flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing} · CPC title

• E03C1/104 Primary

  using a single check valve · CPC title

• Y10T137/3294

  Valved · CPC title

• E03C1/288

  having non-return valves against return of waste water (E03C1/286 takes precedence) · CPC title