# US 5,352,610 A · Tubular membrane assembly

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- Number: US 5,352,610 A
- Document ID: US5352610A
- Status: Granted
- Kind: A
- Application number: 07/800,479
- Filed: 1991-12-03
- Granted: 1994-10-04
- Earliest claimed: 1990-03-22
- Inventors: Hans-Juergen Braeutigam
- Web page: https://patentgrep.com/patent/US5352610A

## CPC

- C02F 3/208: {Membrane aeration (C02F3/201 takes precedence)}
- C02F 3/087: {Floating beds with contact bodies having a lower density than water}
- Y02W 10/10: Biological treatment of water, waste water, or sewage
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

The invention relates to a reactor in which the gas is introduced by a gas feed pipe by at least one tube membrane. The tube membrane consists of a hollow cylinder with perforations or of a metal fabric on which a silicone hose is placed. On the silicone hose there is a fabric reinforcement to which another silicone membrane or a silicone rubber layer is applied.

## Claims

### Claim 1

Membrane assembly of a generally cylindrical configuration, for gas exchange in a liquid for working of biotechnological processes, comprising a dimensionally stable, hollow cylinder having a cylindrical wall with perforations and a tubular silicone membrane having an annular wall wherein the dimensionally stable, hollow cylinder is mounted within the annular wall of the tubular silicone membrane with the annular wall of the tubular silicone membrane covering said perforations, and wherein the annular wall of said silicone membrane is surrounded by a mechanical fabric reinforcement which is in overlying relationship thereto.

### Claim 2 (depends on 1)

Membrane assembly according to claim 1, wherein the perforated dimensionally stable hollow cylinder is made of plastic.

### Claim 3 (depends on 1)

Membrane assembly according to claim 1, wherein the perforated dimensionally stable hollow cylinder is made of metal.

### Claim 4 (depends on 1)

Membrane assembly according to claim 1, wherein the tubular silicone membrane is formed of a gas-permeable silicone hose and wherein said mechanical fabric reinforcement is surrounded by an overlying silicone rubber layer.

### Claim 5 (depends on 4)

Membrane assembly according to claim 4, wherein said silicone rubber layer is in the form of a silicone membrane.

### Claim 6 (depends on 4)

Membrane assembly perforated, dimensionally stable according to claim 4, wherein a gas permeable spacer is located between an outside surface of the hollow cylinder and the gas permeable silicone hose.

### Claim 7 (depends on 1)

Membrane assembly according to claim 1 wherein said silicone membrane comprises a fabric-reinforced, flat silicone membrane which is coiled around said cylindrical wall of the dimensionally stable, hollow cylinder to form said annular wall, said mechanical fabric reinforcement covering the annular wall formed of the fabric-reinforced, flat silicone membrane and having a silicone rubber layer disposed thereon.