IP Library › Granted Patent US 11,260,726
Granted Patent B2
US 11,260,726 · App. 16/383,145 · Granted Mar 1, 2022

Gravity independent pressure relief valve

Inventors: Erin Michael Daly (Windsor, CA); Lisa Jean Aab (Flint, MI)
Assignee: Illinois Tool Works Inc.
B60H1/249F16K17/02
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Quick Facts
Patent No.
US 11,260,726
App. No.
16/383,145
Granted
Mar 1, 2022
Kind
B2
Abstract

A pressure relief valve is provided that includes a housing and a flap. The housing includes a plurality of receptacle members with openings therebetween, and the flap is configured to be accepted by the housing and to contact the receptacle members in a closed position. Further, the flap covers the openings and inhibits airflow through the openings in a closed position, and the flap is biasable to allow airflow through the openings in an open position.

Claims (15)

1. A pressure relief valve, comprising:

a housing including a housing flange and a plurality of receptacle members with openings therebetween; and

a flap configured to be accepted by the housing and to contact the receptacle members in a closed position,

wherein the flap covers the openings and inhibits airflow through the openings in the closed position,

wherein the flap is biasable to allow airflow through the openings in an open position,

wherein the housing flange circumscribes the housing and comprises two sections connected at an angle forming an interior rim of the housing,

wherein the interior rim comprises a plurality of apertures therethrough, wherein the plurality of apertures are positioned solely on the interior rim and circumscribe a circumference of the interior rim, and

wherein the flap comprises a flap flange that engages the housing flange of the housing when in the closed position and a tapered portion extending downwardly from the flap flange such that the flap contacts the interior rim, covers the apertures, and inhibits airflow through the apertures in the closed position, and the apertures are exposed in the open position.

2. The pressure relief valve of claim 1 , wherein the tapered portion of the flap rests against the receptacle members in the closed position.

3. The pressure relief valve of claim 1 , wherein the flap flange of the flap is spatially separated from the housing flange of the housing in the open position.

4. The pressure relief valve of claim 1 , wherein the flap includes a plurality of troughs on an interior surface thereof.

5. The pressure relief valve of claim 4 , wherein a distance between the troughs in the closed position is different than a distance between the troughs in the open position.

6. The pressure relief valve of claim 1 , wherein the plurality of apertures are unevenly spaced around the interior rim.

7. The pressure relief valve of claim 1 , wherein the plurality of apertures are evenly spaced around the interior rim.

8. The pressure relief valve of claim 6 , wherein the plurality of apertures comprises a first set apertures that extends on a first arc of the interior rim and a second set of apertures that extends on a second arc of the interior rim, wherein the first arc is opposite from the second arc, and portions of the interior rim having no apertures extend between the first arc and the second arc.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2020
From: DALY, ERIN MICHAEL; AAB, LISA JEAN
To: ILLINOIS TOOL WORKS INC.
Reel/Frame 053862/0889 →
Continuity (2)
Provisional Application 62656746 · Apr 12, 2018
Related Publication 20190315198A1 · Oct 17, 2019
Cited By (2)
US 1,104,216 US 12,509,871