# US 10,054,580 B2 · Systems and methods for an equilibrium wet bath

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,054,580 B2
- Document ID: US10054580B2
- Status: Granted
- Kind: B2
- Application number: 15/693,925
- Filed: 2017-09-01
- Published: 2017-12-21
- Granted: 2018-08-21
- Earliest claimed: 2014-11-04
- Assignees: Alcotek, Inc.
- Applicants: Alcotek, Inc.
- Inventors: Karl R. Wolf, Jr.
- Web page: https://patentgrep.com/patent/US10054580B2

## CPC

- G01N 33/4972: {Determining alcohol content (for vehicle safety devices B60K28/06)}
- G01N 33/0006: {Calibrating gas analysers}
- 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 wet standard calibration system which utilizes a heat conducting foam with the liquid therein to serve as a primary heating device to avoid the need to include mechanical agitation. The system is particularly useful for generating a vapor comprising water and ethanol which can be used for the calibration of breath alcohol testers.

## Claims

### Claim 1

A system for generating a vapor, the system comprising:
a vessel having a thermally conductive foam placed therein;
a liquid mixture of a solvent and a solute in said vessel so as to at least partially submerge said foam in said liquid;
means for heating said foam to generate a vapor from said liquid, said vapor also including said solvent and said solute and said vapor and said liquid being in equilibrium.

### Claim 2 (depends on 1)

The system of claim 1 wherein said thermally conductive foam is a metal foam.

### Claim 3 (depends on 1)

The system of claim 1 wherein said solvent is water and said solute is ethanol.

### Claim 4 (depends on 1)

The system of claim 1 further comprising:
means for detecting a temperature of said liquid mixture.

### Claim 5 (depends on 4)

The system of claim 4 wherein said means for detecting said temperature is external said vessel.

### Claim 6 (depends on 4)

The system of claim 4 wherein said means for detecting said temperature is internal said vessel.