# US 12,217,594 B2 · Gas detection device

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- Number: US 12,217,594 B2
- Document ID: US12217594B2
- Status: Granted
- Kind: B2
- Application number: 18/268,171
- Filed: 2021-09-01
- Published: 2024-09-05
- Granted: 2025-02-04
- Earliest claimed: 2020-12-18
- Assignees: Posco
- Applicants: POSCO Co., Ltd
- Inventors: Cheol-hee Choi; Kisoo Kim; Dukman Lee
- Web page: https://patentgrep.com/patent/US12217594B2

## CPC

- G08B 21/14: Toxic gas alarms (G08B21/16 takes precedence)
- G01N 1/2205: {with filters}
- G01N 1/2273: {Atmospheric sampling}
- G01N 33/0009: {General constructional details of gas analysers, e.g. portable test equipment (devices for withdrawing samples in the gaseous state G01N1/22)}
- G08B 5/223: {using wireless transmission}
- G08B 7/06: using electric transmission {, e.g. involving audible and visible signalling through the use of sound and light sources}
- G01N 2001/2276: {Personal monitors}
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- 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 gas detection device is disclosed. A gas detection device according to an embodiment of the present invention includes a case in which a plurality of grooves are formed in a circumferential surface, an inlet which is coupled to a first groove among the grooves and through which air is introduced into the case, a power button which is coupled to a second groove among the grooves and turns a power source on or off, a gas detector which is provided in the case and detects a gas contained in the introduced air, a light unit which is coupled to a third groove among the grooves and informs a state in which the power source is turned on or off and whether the gas is detected, a battery which supplies power, a beep generator which generates a beep when a gas detection signal is received from the gas detector, and a power switch operated by the power button to turn on or off so as to supply the power from the battery, wherein one or more of the inlet, the power button, and the light unit are coupled to the grooves in a recessed form, the battery, the beep generator, and the power switch are provided inside the case, and the case is formed in a small spherical shape which is carried in a palm of an operator and moved by the operator.

## Claims

### Claim 1

A gas detection device comprising:
a case in which a plurality of grooves are formed in a circumferential surface;
an inlet which is coupled to a first groove among the grooves and through which air is introduced into the case;
a power button which is coupled to a second groove among the grooves and turns a power source on or off;
a gas detector which is provided in the case and detects a gas contained in the introduced air;
a light unit which is coupled to a third groove among the grooves and emits light to inform an outside of one or more states in which the power source is turned on or off and whether the gas is detected;
a battery which supplies power;
a beep generator which generates a beep when a gas detection signal is received from the gas detector; and
a power switch operated by the power button to turn on or off so as to supply the power from the battery,
wherein of the inlet, the power button, and the light unit are coupled to the grooves in a recessed form,
the battery, the beep generator, and the power switch are provided inside the case, and
the case is formed in a small spherical shape which is carried in a palm of an operator and moved by the operator.

### Claim 2 (depends on 1)

The gas detection device of claim 1, wherein:
the case has a shape in which an upper case having a hemispherical shape and a lower case having a hemispherical shape are coupled; and
an outer cover of the case is formed of an elastic material and formed in a shape in which hexagonal shapes are consecutively arranged.

### Claim 3 (depends on 1)

The gas detection device of claim 1, wherein the inlet includes:
a filter exposed to the outside; and
a guide member in which a hole is formed so that air passing through the filter flows to the gas detector.

### Claim 4 (depends on 1)

The gas detection device of claim 1, further comprising a support frame provided above the battery,
wherein the battery, the support frame, and the gas detector coupled to an upper portion of the support frame, the beep generator, and the power switch are sequentially disposed in the case from a lower side so that a center of gravity is present at a lower portion.

### Claim 5 (depends on 1)

The gas detection device of claim 1, further comprising a transmitter through which information on the detected gas is transmitted to a smartphone.