Pressure regulator

Patent metadata

Field	Value
Publication number	US-12480623-B2
Application number	US-202418420669-A
Country	US
Kind code	B2
Filing date	Jan 23, 2024
Priority date	Jan 24, 2023
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A device includes a housing including a first chamber having a first pressure regulating device, a first fluid inlet, and a first fluid outlet. The first pressure regulating device includes a plurality of first levers; a first spring; and a first pressure activated device. In response to an external pressure decreasing, the first pressure activated device overcomes a first closing force and opens the first fluid inlet. A second chamber has a second pressure regulating device including a second fluid inlet and a second fluid outlet; a plurality of second levers; a second spring; and a second pressure activated device configured to constrict as the external pressure increases. In response to the external pressure decreasing, the second pressure activated device is configured to overcome a second closing force and open the second fluid inlet.

First claim

What is claimed is:

1 . A device, comprising:
a housing, comprising:
a first chamber having a first pressure regulating device,
wherein the first chamber comprises a first fluid inlet and a first fluid outlet;
wherein the first pressure regulating device comprises:
a plurality of first levers;
a first spring having a first spring force;
 wherein the first spring force is configured to provide a first closing force for closing the first fluid inlet;
a first pressure activated device;
 wherein the first pressure activated device is configured to constrict as an external pressure increases;

wherein in response to the external pressure decreasing, the first pressure activated device is configured to overcome the first closing force and open the first fluid inlet; and

a second chamber having a second pressure regulating device;
wherein the second chamber comprises a second fluid inlet and a second fluid outlet;
wherein the second pressure regulating device comprises:
a plurality of second levers;
a second spring having a second spring force;
 wherein the second spring force is configured to provide a second closing force for closing the second fluid inlet;
a second pressure activated device;
wherein the second pressure activated device is configured to constrict as the external pressure increases;
wherein in response to the external pressure decreasing, the second pressure activated device is configured to overcome the second closing force and open the second fluid inlet.

2 . The device of claim 1 , further comprising a filter disposed at the first fluid inlet or at the second fluid inlet.

3 . The device of claim 1 , wherein the first spring is a wave spring.

4 . The device of claim 1 , further comprising an adjustment mechanism configured to modify an outlet pressure of a fluid exiting the second pressure regulating device.

5 . The device of claim 1 , wherein the device is configured for sub-atmospheric pressure delivery.

6 . The device of claim 1 , wherein the first pressure activated device includes one or more of a bellows, a diaphragm, a spring, or a combination thereof.

7 . The device of claim 1 , wherein the second pressure activated device includes one or more of a bellows, a diaphragm, a spring, or a combination thereof.

8 . The device of claim 1 , wherein the first spring comprises a plurality of first springs.

9 . An assembly, comprising:
a pressure-regulated vessel; and a pressure regulator, comprising:
a housing, comprising:
a first chamber having a first pressure regulating device,
wherein the first chamber comprises a first fluid inlet and a first fluid outlet;
wherein the first pressure regulating device comprises:
a plurality of first levers;
a first spring having a first spring force;
 wherein the first spring force is configured to provide a first closing force for closing the first fluid inlet;
a first pressure activated device;
 wherein the first pressure activated device is configured to constrict as an external pressure increases;
wherein in response to the external pressure increasing, the first pressure activated device is configured to overcome the first closing force and open the first fluid inlet; and

a second chamber having a second pressure regulating device;
wherein the second chamber comprises a second fluid inlet and a second fluid outlet;
wherein the second pressure regulating device comprises:
a plurality of second levers;
a second spring having a second spring force;
 wherein the second spring force is configured to provide a second closing force for closing the second fluid inlet;
a second pressure activated device;
wherein the second pressure activated device is configured to constrict as the external pressure increases;

wherein in response to the external pressure increasing, the second pressure activated device is configured to overcome the second closing force and open the second fluid inlet.

10 . The assembly of claim 9 , further comprising a filter disposed at the first fluid inlet or the second fluid inlet.

11 . The assembly of claim 9 , further comprising a filter.

12 . The assembly of claim 9 , further comprising an adjustment mechanism configured to modify an outlet pressure of a fluid exiting the second pressure regulating device.

13 . The assembly of claim 9 , wherein the pressure regulator is configured for sub-atmospheric pressure delivery.

14 . The assembly of claim 9 , wherein the first pressure activated device includes one or more of a bellows, a diaphragm, a spring, or a combination thereof.

15 . The assembly of claim 9 , wherein the second pressure activated device includes one or more of a bellows, a diaphragm, a spring, or a combination thereof.

16 . The assembly of claim 9 , wherein the first spring comprises a plurality of first springs.

17 . The assembly of claim 16 , wherein the plurality of first levers is formed of a rigid low friction material or the plurality of second levers is formed of a rigid low friction material.

Assignees

• Entegris Inc

Inventors

• Jones Edward E
• Barolli Sanado
• Johnson Blake Edmund
• Kenney Joseph Kevin

Classifications

• F17C2201/0104

  cylindrical · CPC title

• F17C2205/0391

  inside the pressure vessel · CPC title

• F17C2250/0626

  Pressure · CPC title

• F17C2270/0518

  Semiconductors · CPC title

• F17C2205/0338

  Pressure regulators · CPC title