# US 10,309,886 B2 · Liquid density measuring device

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- Number: US 10,309,886 B2
- Document ID: US10309886B2
- Status: Granted
- Kind: B2
- Application number: 15/811,178
- Filed: 2017-11-13
- Published: 2018-07-26
- Granted: 2019-06-04
- Earliest claimed: 2014-11-06
- Applicants: James Joseph Schumacher; Angela Kristine Murphy Schumacher
- Inventors: James Joseph Schumacher; Angela Kristine Murphy Schumacher
- Web page: https://patentgrep.com/patent/US10309886B2

## CPC

- G01N 9/18: Special adaptations for indicating, recording, or control
- 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)

## Abstract

A method of testing for a desired specific gravity of a liquid. The method including the use of a temperature calibration gauge and a hydrometer. The temperature calibration gauge has a thermo sensing end and a readout indicating the desired hydrometer reading at the current temperature of the liquid. The method includes the steps of contacting the thermo sensing end and the hydrometer with the liquid and comparing the readout of the temperature calibration gauge with the measurement indicated by the hydrometer.

## Claims

### Claim 1

A method of testing for a desired specific gravity of a liquid, the method comprising the steps of:
providing a temperature calibration gauge with a thermo sensing end operatively connected to a readout configured to indicate a desired hydrometer reading for the liquid at the current temperature of the liquid;
providing a cup configured to receive the temperature calibration gauge with the thermo sensing end extending out of the cup;
providing a hydrometer;
placing the cup in contact with the surface of the liquid and the temperature calibration gauge and the hydrometer in contact with the liquid; and
comparing the desired hydrometer reading on the readout of the temperature calibration gauge with the hydrometer reading.

### Claim 2 (depends on 1)

The method of claim 1 further comprising the steps of:
providing a vessel configured to removably receive the temperature calibration gauge, with the thermo sensing end extending within the vessel; and
pouring the liquid into the vessel.

### Claim 3 (depends on 1)

The method of claim 1 wherein the readout comprises a dial and a needle.

### Claim 4 (depends on 1)

The method of claim 1 wherein the readout comprises a digital display.

### Claim 5

A method comprising the steps of:
placing a first device in contact with a liquid, the first device configured to sense a first characteristic of the liquid;
sensing the first characteristic of the liquid using the first device;
displaying on the first device a target on a scale corresponding to a second characteristic of the liquid,
measuring the second characteristic of the liquid with a second device comparing the measured second characteristic to the target; and
changing the second characteristic of the fluid to reach the target,
wherein the step of changing the second characteristic comprises boiling the liquid.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the first device is a thermometer.

### Claim 7 (depends on 5)

The method according to claim 5, wherein the second characteristic is specific gravity.

### Claim 8 (depends on 5)

The method according to claim 5, wherein the scale is selected from the group consisting of API Gravity, Baume, BRIX, Degrees Balling, Oechsle, Plato and Twaddell.

### Claim 9 (depends on 5)

The method according to claim 5, wherein the second device is a hydrometer.