US 7,641,298 B2Granted

Heat-insulated wall

AssigneeBSH Bosch und Siemens Hausgeraete GmbH

InventorsJürgen Hirath, Markus Schütte

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Abstract

A heat-insulated wall has two outer covering layers which are disposed at a distance from one another and are constructed at least substantially vacuum-tight. The two outer covering layers are connected to one another in a vacuum-tight manner by a connecting profile that runs along their contour and has a U-shaped cross section. The two outer covering layers together with the connecting profile enclose an intermediate space that can be evacuated and filled with an evacuable heat insulating material. At least one tubular bushing for cables or the like runs through the intermediate space. The bushing connects apertures to one another that are formed the spaced-apart outer covering layers. The tubular bushing is provided on its two end sections with a flange-shaped expanded and flattened region by which the bushing is fixed in a vacuum-tight manner on the mutually facing inner sides of the two outer covering layers.

Claims28

Dependent claims

A heat insulated wall product made by a process comprising:

providing a connecting profile, an evacuable heat insulating material, two outer covering layers each having a pass-through aperture, and a tube section including a hollow bore and two end sections with at least one of the two end sections having a circumferentially positioned flange-shaped expanded and flattened region;
connecting the two outer covering layers to the connecting profile with a vacuum-tight seal and with a disposition of the two outer covering layers at a spacing from one another with their pass-through apertures generally aligned with one another, the two outer covering layers together with the connecting profile delimiting an intermediate space;
disposing the tube section relative to the two outer covering layers with the pass-through aperture of each outer covering layer being in communication with the hollow bore of the tube section and with the at least one flange-shaped expanded and flattened region in facing relation to an interior surface of a selected one of the two outer covering layers that faces toward the other outer covering layer;
connecting in a sealed manner the selected one outer covering layer to the flange-shaped expanded and flattened region of the tube section;
disposing the evacuable heat insulating material in the intermediate space delimited by the two outer covering layers and the connecting profile;
and
disposing the intermediate space delimited by the two outer covering layers and the connecting profile in an evacuated condition.

4 more elements

A method for making a heat insulated wall product, the method comprising:

providing a connecting profile, an evacuable heat insulating material, two outer covering layers each having a pass-through aperture, and a tube section including a hollow bore and two end sections with at least one of the two end sections having a circumferentially positioned flange-shaped expanded and flattened region;
connecting the two outer covering layers to the connecting profile with a vacuum-tight seal and with a disposition of the two outer covering layers at a spacing from one another with their pass-through apertures generally aligned with one another, the two outer covering layers together with the connecting profile delimiting an intermediate space;
disposing the tube section relative to the two outer covering layers with the pass-through aperture of each outer covering layer being in communication with the hollow bore of the tube section and with the at least one flange-shaped expanded and flattened region in facing relation to an interior surface of a selected one of the two outer covering layers that faces toward the other outer covering layer;
connecting in a sealed manner the selected one outer covering layer to the flange-shaped expanded and flattened region of the tube section;
disposing the evacuable heat insulating material in the intermediate space delimited by the two outer covering layers and the connecting profile;
and
disposing the intermediate space delimited by the two outer covering layers and the connecting profile in an evacuated condition.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/006,515Filed 2 Jan 2008 · division
Priority: DE 197 45 86016 Oct 1997
Published: US 2008/0110128 A115 May 2008
Granted: 5 Jan 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F24C 15/08
Details: foundations or supports plates; Legs or pillars; Casings; Wheels
F25D 23/065
Walls: details
F25D 2201/1262
Of cellular type: with open cells
F25D 2201/14
With respect to heat: using subatmospheric pressure