# US 5,332,003 A · Sanitary water valve

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

- Number: US 5,332,003 A
- Document ID: US5332003A
- Status: Granted
- Kind: A
- Application number: 07/988,941
- Filed: 1993-02-25
- Granted: 1994-07-26
- Earliest claimed: 1990-08-31
- Assignees: Ideal-Standard GmbH
- Inventors: Hans Nikolayczik
- Web page: https://patentgrep.com/patent/US5332003A

## CPC

- F16K 11/0746: {with two or more closure plates comprising a single lever control}
- F16K 47/026: {preventing noise in a single handle mixing valve}
- Y10T 137/86549: Selective reciprocation or rotation
- 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

A valve has a housing provided with a fixed inlet disk in the housing formed with throughgoing water-inlet ports and a fixed outlet disk transversely spaced in the housing from the inlet disk and formed with deflecting chambers aligned transversely with the inlet ports. A movable valve disk in the housing between the fixed disks is formed with throughgoing passages alignable transversely between the respective inlet ports and deflecting chambers and has a side forming with the housing an outlet recess. Toothed steps are formed on the side of the movable valve disk to reduce noise.

## Claims

### Claim 1

A valve comprising:
a housing;
a fixed inlet disk in the housing formed with through-going water-inlet ports;
a fixed outlet disk transversely spaced in the housing from the inlet disk and formed with deflecting chambers aligned transversely with the inlet ports;
a movable valve disk in the housing between the fixed disks, formed with throughgoing passages alignable transversely between the respective inlet ports and deflecting chambers, and having a side forming with the housing an outlet recess; and
toothed steps formed on the side of the movable valve disk.

### Claim 2 (depends on 1)

The valve defined in claim 1 wherein the movable disk has sealing surfaces engaging the fixed disks and the steps extend in both directions from the sealing surfaces.

### Claim 3 (depends on 2)

The valve defined in claim 2 wherein the surfaces meet each side at a smooth control edge.

### Claim 4 (depends on 1)

The valve defined in claim 1 wherein the teeth of the steps are offset from step to step.

### Claim 5 (depends on 1)

The valve defined in claim 1 wherein the teeth of the steps are aligned.

### Claim 6 (depends on 1)

The valve defined in claim 1 wherein each tooth has a pair of flanks extending at about 90.degree. to each other.

### Claim 7 (depends on 1)

The valve defined in claim 1 wherein each tooth has a pair of flanks extending at about 60.degree. to each other.

### Claim 8 (depends on 1)

The valve defined in claim 1 wherein the teeth of the steps are separated by slits.