# US 10,480,976 B2 · Flowmeter

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- Number: US 10,480,976 B2
- Document ID: US10480976B2
- Status: Granted
- Kind: B2
- Application number: 15/928,155
- Filed: 2018-03-22
- Published: 2018-09-27
- Granted: 2019-11-19
- Earliest claimed: 2017-03-24
- Assignees: Krohne AG
- Applicants: Krohne AG
- Inventors: Christopher Rolph; Tao Wang
- Web page: https://patentgrep.com/patent/US10480976B2

## CPC

- G01F 1/8409: {constructional details}
- G01F 1/8459: {vibrating means being located inside the measuring conduits}
- G01F 15/00: Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F 15/185: {Connecting means, e.g. bypass conduits}
- G01F 1/849: {having straight measuring conduits}
- G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME

## Abstract

The flowmeter having at least one measuring tube and having at least one inlet element, wherein the inlet element is connected to the at least one measuring tube and is arranged before the at least one measuring tube in respect to flow direction. The flowmeter that is also suitable for the verification of erosive media is achieved in that at least one inflow element is provided, wherein the inflow element is arranged at least partly within the inlet element and wherein the inflow element is detachably connectable to the inlet element.

## Claims

### Claim 1

A flowmeter, comprising:
at least one measuring tube and
at least one inlet element,
wherein the inlet element is connected to the at least one measuring tube and is arranged before the at least one measuring tube in respect to a direction of flow,
wherein at least one inflow element is arranged at least partially within the inlet element,
wherein the inflow element is detachably connectable to the inlet element, and
wherein the flowmeter is a Coriolis mass flowmeter with at least one oscillation generator and with at least two oscillation sensors.

### Claim 2 (depends on 1)

The flowmeter according to claim 1, wherein the inflow element is connected to the inlet element by means of a force-fit or a form-fit connection.

### Claim 3 (depends on 1)

The flowmeter according to claim 1, wherein the inflow element is connected to the inlet element by means of screwing, clamping or adhesive.

### Claim 4 (depends on 1)

The flowmeter according to claim 1, wherein the inflow element is formed at least partially of a metal or a polymer.

### Claim 5 (depends on 1)

The flowmeter according to claim 1, wherein a flange element is provided for attachment to external piping and wherein the inflow element is arranged at least partially within the flange element.

### Claim 6 (depends on 1)

The flowmeter according to claim 1, wherein a flange element is provided for attachment to external piping and wherein the inflow element is arranged between the flange element and the at last one measuring tube.

### Claim 7 (depends on 1)

The flowmeter according to claim 1, wherein the inflow element is a flow cross section reducer.

### Claim 8 (depends on 1)

The flowmeter according to claim 1, wherein a flow cross section reducer is arranged within the inlet element and wherein the inflow element is a protective shield on the flow cross section reducer.

### Claim 9 (depends on 8)

Flowmeter according to claim 8, wherein a flange element is provided for attachment to external piping, wherein the protective shield is arranged at least partially within the flange element and wherein the protective shield has a protective shield flange.

### Claim 10 (depends on 8)

Flowmeter according to claim 8, wherein the protective shield has is a flow splitter or a flow cross section reducer.

### Claim 11 (depends on 1)

The flowmeter according to claim 1, wherein said at least one measuring tube comprises at least two measuring tubes, wherein a flow splitter is provided and wherein the inflow element a protective shield\arranged on the flow splitter.

### Claim 12 (depends on 11)

The flowmeter according to claim 11, wherein the flow splitter is arranged before the at least two measuring tubes relative to a flow direction within the inlet element.

### Claim 13

A flowmeter, comprising:
at least one measuring tube and
at least one inlet element,
wherein the inlet element is connected to the at least one measuring tube and is arranged before the at least one measuring tube in respect to a direction of flow,
wherein the inflow element is detachably connectable to the inlet element, and
wherein at least two measuring tubes are provided and that the inflow element is designed as flow splitter, which is preferably arranged within the inlet element before the measuring tube in respect to flow direction.