# US 12,007,059 B2 · Insulation process and appliance obtained

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- Number: US 12,007,059 B2
- Document ID: US12007059B2
- Status: Granted
- Kind: B2
- Application number: 16/318,914
- Filed: 2017-07-18
- Published: 2019-06-20
- Granted: 2024-06-11
- Earliest claimed: 2016-08-01
- Assignees: Saint-Gobain Isover
- Applicants: Saint-Gobain Isover
- Inventors: Christophe Bareyt; David Gogeon
- Web page: https://patentgrep.com/patent/US12007059B2

## CPC

- F16L 59/04: Arrangements using dry fillers, e.g. using slag wool
- F24C 15/08: Foundations or supports plates; Legs or pillars; Casings; Wheels (tops, e.g. hot plates F24C15/10)
- F24C 15/34: Elements and arrangements for heat storage or insulation
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION

## Abstract

A process is for insulating an appliance, in particular a three-dimensional appliance likely in particular to be exposed to high temperatures, such as a domestic oven. The appliance has one or more internal spaces to be insulated. Flakes and/or nodules of wool(s) and/or fibers, in particular mineral wool(s) and/or fibers, are blown into the space(s) to be insulated without adding binder or water.

## Claims

### Claim 1

A process for insulating an oven, the oven having one or more internal spaces, to be insulated, the process comprising:
blowing flakes and/or nodules of wool(s) and/or fibers into the space(s) to be insulated without adding binder or water,
wherein at least 50 wt. % of the flakes have a largest dimension in a range of from 5 to 25 mm,
wherein the flakes and/or nodules are made of glass or carbon or ceramic wool(s) or fibers, with a micronaire of less than 25 L/min, and/or are made of rock wool(s) or fibers, with a fasonaire of greater than 150 mmwc,
wherein the blowing gas pressure is in a range of from 12 to 45 kPa and/or in that the blowing flow rate is in a range of from 40 to 90 g/s,
wherein the flakes from an insulating layer with a density in a range of from 40 to 120 kg/m3, and
wherein the insulating layer takes a final shape without requiring a subsequent shaping.

### Claim 2 (depends on 1)

The process of claim 1, wherein the flakes and/or nodules have a size of less than 50 mm.

### Claim 3 (depends on 1)

The process of claim 1, wherein the flow of blown material comprises, besides the flakes and/or nodules of wool(s) and/or fibers:
less than 2% by weight of moisture; and
less than 8% of binder already polymerized or crosslinked or cured or hardened or that has already reacted.

### Claim 4 (depends on 1)

The process of claim 1, wherein the flakes and/or nodules comprise a content of organic compounds of less than 8 wt. %,
wherein the flakes and/or nodules have less than 8 wt. % of binder, and
wherein the content of anti-dusting agents in the blown material is less than 1 wt. %.

### Claim 5 (depends on 1)

The process of claim 1, wherein the blown material also comprises an aerogel.

### Claim 6 (depends on 1)

The process of claim 1, wherein the blowing gas pressure is in the range of from 12 to 45 kPa.

### Claim 7 (depends on 1)

The process of claim 1, wherein the blowing gas stream is oriented substantially parallel to the mid-plane of the space to be insulated, with an angle of incidence of the blowing stream with the plan of between +5° and −5°.

### Claim 8 (depends on 1)

The process of claim 1, wherein the blowing is carried out simultaneously in several spaces to be insulated.

### Claim 9 (depends on 1)

The process of claim 1, wherein the oven is a domestic oven.

### Claim 10 (depends on 1)

The process of claim 1, wherein the flakes and/or nodules of wool(s) and/or fibers comprise mineral wool(s) and/or fibers.

### Claim 11 (depends on 1)

The process of claim 1, wherein
the blowing flow rate is in the range of from 40 to 90 g/s.

### Claim 12 (depends on 6)

The process of claim 6, wherein the blowing flow rate is in the range of from 40 to 90 g/s.