# US 9,518,678 B2 · Electrical feedback device for valves

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- Number: US 9,518,678 B2
- Document ID: US9518678B2
- Status: Granted
- Kind: B2
- Application number: 14/516,735
- Filed: 2014-10-17
- Published: 2015-02-05
- Granted: 2016-12-13
- Earliest claimed: 2009-06-16
- Assignees: Georg Fischer Rohrleitungssysteme AG
- Applicants: Georg Fischer Rohrleitungssysteme AG
- Inventors: Stefan Bürgi; Jürgen Stumpp
- Web page: https://patentgrep.com/patent/US9518678B2

## CPC

- F16K 37/0041: {for measuring valve parameters (F16K37/0033 takes precedence)}
- F16K 31/60: Handles {(form, features or function of taps or faucet handles for domestic plumbing installations E03C1/04)}
- F16K 31/605: {for single handle mixing valves}
- F16K 35/02: to be locked or disconnected by means of a pushing or pulling action
- F16K 35/025: {said actuating element being operated manually (e.g. a push-button located in the valve actuator)}
- Y10T 137/8242: Electrical
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An electrical feedback device (6) of a valve (1) is provided for feeding back the position of a hand wheel (4) of the valve (1) and thus the position of a shut-off member of the valve (1). The electrical feedback device (6) can be mounted in a spindle housing (13) of a housing upper part (2) of the valve (1). The electrical feedback device is configured so that the rotational movement of the hand wheel (4) is converted into a linear movement of a trip cam (45). The electrical feedback device (6) has a gearwheel (43) which is driven by a screw thread (42) which is mounted on a ring (41).

## Claims

### Claim 1

Electrical feedback device (6) of a valve (1) for feeding back the position of a hand wheel (4) of the valve (1) and thus the position of a shut-off member of the valve (1), characterised in that:
the electrical feedback device (6) can be mounted in a spindle housing (13) of a housing upper part (2) of the valve (1)
the electrical feedback device is configured so that the rotational movement of the hand wheel (4) is converted into a linear movement of a trip cam (45); and
the electrical feedback device (6) has a gearwheel (43) which is driven by a screw thread (42) which is mounted on a ring (41).

### Claim 2 (depends on 1)

Electrical feedback device according to claim 1, characterised in that the electrical feedback device (6) has at least one micro switch (46).

### Claim 3 (depends on 2)

Electrical feedback device (6) according to claim 2, characterised in that the electrical feedback device is configured so that the micro switch (46) is actuated by said cam.

### Claim 4 (depends on 1)

Electrical feedback device (6) according to claim 1, characterised in that the electrical feedback device (6) is configured to be self-adjusting and can be fitted on at a later stage.

### Claim 5 (depends on 1)

Electrical feedback device according to claim 1, characterised in that the electrical feedback device is configured so that the electrical feedback device (6) has at least one micro switch (46).

### Claim 6 (depends on 1)

Electrical feedback device (6) according to claim 1, characterised in that the micro switch (46) is actuated by trip cams (45) arranged for linear movement.

### Claim 7 (depends on 1)

Electrical feedback device (6) according to claim 1, characterised in that the electrical feedback device (6) is configured to be self-adjusting and can be fitted on at a later stage.

### Claim 8 (depends on 1)

A combination comprising:
a valve (1) according to claim 1; and said electrical feedback device (6) wherein the electrical feedback device is mounted in said spindle housing.

### Claim 9 (depends on 8)

The combination of claim 8 wherein the electrical feedback device (6) is configured to be self adjusting and can be fitted on at a later stage.

### Claim 10 (depends on 9)

The combination of claim 9 wherein the electrical feedback device (6) has at least one micro switch (46).

### Claim 11 (depends on 10)

The combination of claim 10 wherein the electrical feedback device is configured so that the micro switch (46) is actuated by said trip cam.

### Claim 12 (depends on 8)

The combination of claim 8 wherein the electrical feedback device is configured so that the electrical feedback device (6) has at least one micro switch (46).

### Claim 13 (depends on 12)

The combination of claim 12 wherein the micro switch (46) is actuated by said trip cam.