# US 2024/0044752 A1 · Device for sensing a fluid

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- Number: US 2024/0044752 A1
- Document ID: US20240044752A1
- Status: Published application
- Kind: A1
- Application number: 18/257,048
- Filed: 2021-12-10
- Published: 2024-02-08
- Earliest claimed: 2020-12-11
- Assignees: Calectro AB
- Applicants: Calectro AB
- Inventors: Jorgen SAHIBZADA
- Web page: https://patentgrep.com/patent/US20240044752A1

## CPC

- G01N 1/22: in the gaseous state {(specially adapted for biological material G01N33/497; measuring breath flow A61B5/087)}
- G01N 1/2247: {Sampling from a flowing stream of gas}
- G01N 2001/2291: {Movable probes, e.g. swivelling, swinging}
- G08B 17/113: Constructional details
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS

## Abstract

The present invention relates to a device for sensing a fluid comprising: a first portion adapted to be arranged in a fluid duct, said first portion comprising a multiple flow pipe comprising a longitudinal axis, said multiple flow pipe adapted for being arranged in the fluid duct such that said longitudinal axis is substantially perpendicular to a fluid flow direction in the fluid duct; a second portion comprising a housing and a sensor arranged in said housing; an axial connector arranged in contact with said first portion and said second portion, wherein said axial connector permits arrangement of said second portion at a plurality of positions in relation to said first portion and wherein in each one of said plurality of positions said first portion and said second portion are fluidly connected.

## Claims

### Claim 1

A device for sensing a fluid comprising:
a first portion adapted to be arranged in a fluid duct, the first portion comprising a multiple flow pipe comprising a longitudinal axis, said multiple flow pipe adapted for being arranged in the fluid duct such that said longitudinal axis is substantially perpendicular to a fluid flow direction in the fluid duct;
a second portion comprising a housing and a sensor arranged in said housing;
an axial connector arranged in contact with said first portion and said second portion, wherein said axial connector permits arrangement of said second portion at a plurality of positions in relation to said first portion and wherein in each one of said plurality of positions said first portion and said second portion are fluidly connected.

### Claim 2 (depends on 1)

The device according to claim 1, wherein said second portion is adapted to rotate between said plurality of positions.

### Claim 3 (depends on 2)

The device according to claim 2, wherein said second portion is adapted to rotate 360° around an axis of rotation.

### Claim 4 (depends on 1)

The device according to claim 1, wherein said axial connector comprises a first and a second flow chamber, wherein said first flow chamber is connected to a first channel of said multiple flow pipe and said second flow chamber is connected to a second channel of said multiple flow pipe.

### Claim 5 (depends on 4)

The device according to claim 4, wherein said second flow chamber is arranged around said first flow chamber.

### Claim 6 (depends on 5)

The device according to claim 5, wherein said axial connector is substantially circular and comprising a central axis, and wherein a rotational axis of said second portion is parallel to and coinciding with said central axis

### Claim 7 (depends on 6)

The device according to claim 6, wherein said first flow chamber comprises a first opening adapted to be connected to said first channel of said multiple flow pipe and a second opening adapted to be connected to said second portion, wherein said second opening is substantially symmetrical around said central axis of said axial connector.

### Claim 8 (depends on 1)

The device according to claim 1, wherein said housing further comprises a first and a second cavity;
wherein said first cavity form a sensor inlet adapted to lead fluid to said sensor and second cavity form sensor outlet adapted to lead fluid from said sensor when said sensor is arranged in said housing, wherein said sensor inlet is fluidly connected to said first flow chamber and said sensor outlet is fluidly connected to said second flow chamber.

### Claim 9 (depends on 1)

The device according to claim 1, wherein said axial connector further comprises a rim portion having an upper surface, wherein said second portion is arranged in contact with and adapted to slide on said upper surface.

### Claim 10 (depends on 1)

The device according to claim 1, wherein said second comprises a through-hole adapted to receive a fastening means such that said second portion is adapted to be fastened to said duct.

### Claim 11 (depends on 1)

The device according to claim 1, wherein said axial connector further comprises a circumferential slit and an o-ring arranged within said slit.

### Claim 12 (depends on 1)

The device according to claim 1, wherein said first portion is attached in a rotationally fixed manner to said axial connector and said second portion is rotatably attached to said axial connector.

### Claim 13 (depends on 1)

A method for installing a device for sensing a fluid on a fluid duct, the method comprising:
providing a first portion adapted to be arranged in a fluid duct, said first portion comprising a multiple flow pipe, a second portion comprising a housing and a sensor arranged in said housing, and an axial connector adapted to be arranged in contact with said first portion and said second portion such that said first portion and said second portion are fluidly connected, and wherein said axial connector permits arrangement of said second portion at a plurality of positions in relation to said first portion;
assembling said first portion, second portion and said axial connector, thereby providing a device according to claim 1; and
fastening said device to said fluid duct such that the position of the second portion is fixed in relation to said first portion and such that said device is installed on said fluid duct.

### Claim 14 (depends on 13)

The method according to claim 13, further comprising rotating said second portion from a first position in relation to said first portion to a second position in relation to said first portion before fastening said device to said fluid duct.

### Claim 15 (depends on 13)

The method according to claim 13 wherein assembling further comprises:
connecting said first portion and said second portion to said axial connector.

### Claim 16 (depends on 14)

The method according to claim 14, wherein assembling further comprises:
arranging said first portion of said device in said fluid duct;
connecting said axial connector to said first portion; and
connecting said second portion to said axial connector.

### Claim 17 (depends on 16)

The method according to claim 16, further comprising connecting said axial connector to said first portion in a rotationally fixed manner, and connecting said second portion to said axial connector such that said second portion is rotatably attached to said axial connector.
