System and method for indicating air pressure within an enclosed space

Patent metadata

Field	Value
Publication number	US-11519806-B2
Application number	US-202017108750-A
Country	US
Kind code	B2
Filing date	Dec 1, 2020
Priority date	Dec 2, 2019
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A system and method for sensing and indicating air pressure within an enclosed space is described. The system comprises a pressure sensing device and pressure indicator further comprising a housing enabled to house a plurality of electronic devices and having an opening, an elastomeric membrane covering the opening of the housing and capable of flexing inwards and outwards, a light emitting device to provide an illumination and a projector for projecting a positive pressure symbol and a negative pressure symbol. The elastomeric membrane flexes inwards along with a representation of the positive pressure symbol with an illumination of a first color when the pressure within the enclosed space is positive and the elastomeric membrane flexes outwards along with a representation of the negative pressure symbol with the illumination of a second color when the pressure within the enclosed space is negative.

First claim

What is claimed is:

1. A system for sensing air pressure and indication of the air pressure within an enclosed space, the system comprising:
a housing having an opening;
an elastomeric membrane covering the opening of the housing and capable of flexing inwards and outwards during a pressure change of the enclosed space;
a light source disposed within the housing to provide an illumination indicating a positive pressure with a first color and indicating a negative pressure with a second color;
a projector housed within the housing for projecting a positive pressure symbol and a negative pressure symbol;
wherein the elastomeric membrane flexes inwards along with a representation of the positive pressure symbol with the illumination of the first color when the pressure within the enclosed space is positive and the elastomeric membrane flexes outwards along with a representation of the negative pressure symbol with the illumination of the second color when the pressure within the enclosed space is negative.

2. The system of claim 1 , wherein the housing is made from materials comprising one or more of metals, glasses, and plastics.

3. The system of claim 1 , comprising a plurality of electronic devices comprising:
a digital pressure sensor for measuring the pressure within the enclosed space; and
a speaker for reading out the measured pressure within the enclosed space.

4. The system of claim 1 , wherein the elastomeric membrane flexes due to pressure difference between the enclosed space and a material of the elastomeric membrane is selected based on a particular pressure threshold.

5. The system of claim 1 , wherein the elastomeric membrane is made from a translucent material.

6. The system of claim 1 , wherein the positive pressure symbol comprises either of a plus mark or a tick mark.

7. The system of claim 1 , wherein the negative pressure symbol comprises either of a minus mark or a cross mark.

8. The system of claim 1 , wherein the elastomeric membrane remains in a non-flexed position when the pressure within the enclosed space is neutral.

9. A pressure sensing and indicating method for an enclosed space, the method comprising:
sensing pressure with a pressure sensing device and pressure indicator within the enclosed space and reading out the pressure via a speaker;
flexing an elastomeric membrane held at an opening of a housing toward an inward direction for a positive pressure state of the enclosed space and toward an outward direction for a negative pressure state of the enclosed space;
illuminating the elastomeric membrane by a first color for the positive pressure state and by a second color for the negative pressure state;
projecting, on the elastomeric membrane, a positive pressure symbol for the positive pressure state and a negative pressure symbol for the negative pressure state within the enclosed space.

10. The method of claim 9 , wherein the elastomeric membrane flexes due to pressure difference between the enclosed space and a material of the elastomeric membrane is selected based on a particular pressure threshold.

11. The method of claim 9 , wherein the elastomeric membrane is made from a translucent material.

12. The method of claim 9 , wherein the positive pressure symbol comprises either of a plus mark or a tick mark.

13. The method of claim 9 , wherein the negative pressure symbol comprises either of a minus mark or a cross mark.

14. The method of claim 9 , wherein the elastomeric membrane remains in a non-flexed position when the pressure within the enclosed space is neutral.

15. A system for sensing and indicating air pressure within an enclosed space, the system comprising:
a housing having an opening;
an elastomeric membrane covering the opening of the housing and capable of flexing inwards and outwards during a pressure change of the enclosed space;
a light source disposed within the housing to provide an illumination indicating a positive pressure with a first color and indicating a negative pressure with a second color;
a projector housed within the housing for projecting a positive pressure symbol and a negative pressure symbol;
wherein the elastomeric membrane flexes inwards along with a representation of the positive pressure symbol with the illumination of the first color when the pressure within the enclosed space is positive and the elastomeric membrane flexes outwards along with a representation of the negative pressure symbol with the illumination of the second color when the pressure within the enclosed space is negative.

16. The system of claim 15 , wherein the elastomeric membrane flexes due to pressure difference between the enclosed space and the material of the elastomeric membrane is selected based on a particular pressure threshold.

17. The system of claim 15 , wherein the elastomeric membrane is made from a translucent material.

18. The system of claim 15 , wherein the positive pressure symbol comprises either of a plus mark or a tick mark.

19. The system of claim 15 , wherein the negative pressure symbol comprises either of a minus mark or a cross mark.

20. The system of claim 15 , wherein the elastomeric membrane remains in a non-flexed position when the pressure within the enclosed space is neutral.

Assignees

• Johnson Controls Tech Co
• Johnson Controls Tyco IP Holdings LLP

Inventors

• Thoni Mark A
• Bykowski Ryan J

Classifications

• G01L19/12 Primary

  Alarms or signals · CPC title

• G01L13/025

  using diaphragms · CPC title

• G01L7/086

  with optical transmitting or indicating means · CPC title