# US 11,433,166 B2 · Liquid level sensor for liquid receptacle

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- Number: US 11,433,166 B2
- Document ID: US11433166B2
- Status: Granted
- Kind: B2
- Application number: 16/398,028
- Filed: 2019-04-29
- Published: 2019-10-31
- Granted: 2022-09-06
- Earliest claimed: 2018-04-27
- Assignees: Moxxly, Inc.
- Applicants: Moxxly LLC
- Inventors: Santhi Analytis; Wisit Jirattigalachote; Jacob Kurzrock; Gabrielle Guthrie; Jose Luis Cordoba
- Web page: https://patentgrep.com/patent/US11433166B2

## CPC

- A61M 1/062: {Pump accessories}
- A61M 1/60: {Containers for suction drainage, adapted to be used with an external suction source (containers not adapted for subjection to vacuum A61M1/69)}
- A61M 39/24: Check- or non-return valves
- G01F 23/14: by measurement of pressure
- G01F 23/20: by measurement of weight, e.g. to determine the level of stored liquefied gas
- G01F 23/26: by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F 23/263: by measuring variations in capacitance of capacitors
- G01F 23/268: {mounting arrangements of probes}
- A61J 2200/76: for fluid level
- A61M 2039/1077: {Adapters, e.g. couplings adapting a connector to one or several other connectors}
- A61M 2205/21: insensitive to tilting or inclination, e.g. spill-over prevention
- A61M 2205/3306: Optical measuring means
- A61M 2205/3317: Electromagnetic, inductive or dielectric measuring means
- A61M 2205/332: Force measuring means
- A61M 2205/3331: Pressure; Flow
- A61M 2205/3389: Continuous level detection (A61M2205/3393 takes precedence)
- A61M 2205/3393: by weighing the reservoir
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE

## Abstract

Disclosed herein are various techniques and devices for detecting a level of fluid within a fluid collection receptacle. In one embodiment, a pressure sensor connected to a bottle is provided. The pressure sensor detects air pressure in the bottle as the bottle is filled with a liquid and provides information to determine a volume of the liquid in the bottle.

## Claims

### Claim 1

A fluid collection receptacle comprising a pressure sensor connected to a bottle which detects air pressure in the bottle as the bottle is filled with liquid and an integral rigid tube disposed within the bottle that is integral to the bottle and connected to a port, the pressure sensor also being connected to the port, wherein a second rigid tube is disposed over and around the integral rigid tube and includes a valve interface interfacing a valve disposed within a breast pump manifold and wherein the breast pump manifold is connected to a top portion of the bottle.

### Claim 2 (depends on 1)

The fluid collection receptacle of claim 1, wherein the valve is a one-way valve.

### Claim 3 (depends on 2)

The fluid collection receptacle of claim 2, wherein the valve selectively allows liquid to fall through the valve and collect within the bottle.

### Claim 4 (depends on 1)

The fluid collection receptacle of claim 1, wherein the integral rigid tube and the port are connected with an adapter.

### Claim 5 (depends on 4)

The fluid collection receptacle of claim 4, wherein the adapter connects the bottle to the breast pump manifold.

### Claim 6 (depends on 5)

The fluid collection receptacle of claim 5, wherein the valve connects to the adapter.

### Claim 7 (depends on 6)

The fluid collection receptacle of claim 6, wherein the valve selectively allows the liquid to fall into the bottle.

### Claim 8 (depends on 4)

The fluid collection receptacle of claim 4, wherein the integral rigid tube is disposed at an approximate center of the bottle when the bottle is attached to the adapter.

### Claim 9 (depends on 1)

The fluid collection receptacle of claim 1, wherein an air permeable liquid proof seal is disposed between the pressure sensor and the integral rigid tube.

### Claim 10 (depends on 1)

The fluid collection receptacle of claim 1, wherein air pressure information detected by the pressure sensor is wirelessly transmittable to a processor.

### Claim 11 (depends on 1)

The fluid collection receptacle of claim 1, wherein air pressure information detected by the pressure sensor is transmittable to a processor via a wire.

### Claim 12 (depends on 1)

The fluid collection receptacle of claim 1, wherein the air pressure sensor is a pressurized sensor.

### Claim 13 (depends on 1)

The fluid collection receptacle of claim 1, where in the second rigid tube has a diameter greater than a diameter of the integral rigid tube.