Building having a metallic, electrically conductive tube, electrical line positioned in a tube of this type and metallic, electrically conductive tube for this purpose

Patent metadata

Field	Value
Publication number	US-11764557-B2
Application number	US-202117509467-A
Country	US
Kind code	B2
Filing date	Oct 25, 2021
Priority date	Aug 1, 2017
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A metal, electrically conductive tube, and electrical lines positioned in the tube for electrically powering a building, is provided. The tube includes tube sections connected by a tubular metal and electrically conductive connection part. The tube sections have end sections facing one another. The connection part extends with its inner surface facing outer surfaces of overlapping sections of the tube sections. The connection of the tube sections is achieved by plastic deformation of the connection part in the overlapping sections. A respective contact is provided between the inner surface and the outer surfaces and ensures the electrically conductive connection between the first end section, the connection part and the second end section via an indentation in the inner surface or the outer surfaces, or via fluidic contact between the outer surfaces and the inner surface.

First claim

I claim:

1. A metallic, electrically conductive tube configured to install electric lines for an electrical power supply of a building in the tube, comprising:
an electrically conductive and metallic tubular connection part having a continuous inner surface, a first plurality of indentations integrally formed in the inner surface, and a second plurality of indentations integrally formed in the inner surface, the first plurality of indentations being spaced from the second plurality of indentations;
first and second electrically conductive and metallic tube sections which are connected to one another by the tubular connection part in an extension direction of the tube, the first tube section having first and second opposite ends, a first outer surface, and a first end section at the first end thereof, the second tube section having first and second opposite ends, a second outer surface and a second end section at the second end thereof, the first end section and the second end section facing one another, wherein the inner surface of the connection part faces and abuts against the first outer surface along a first overlapping section, the inner surface of the connection part faces and abuts against the second outer surface along a second overlapping section;
the first plurality of indentations of the connection part being provided in the first overlapping section, wherein an electrically conductive connection between the first end section and the connection part is provided by compression and plastic deformation of the connection part in the first overlapping section along the first plurality of indentations and of the first tube section in the first end section, in which they adjoin one another directly and in a plastically deformed manner in a compressed state; and
the second plurality of indentations of the connection part being provided in the second overlapping section, wherein an electrically conductive connection between the second end section and the connection part is provided by compression and plastic deformation of the connection part in the second overlapping section along the second plurality of indentations and of the second tube section in the second end section, in which they adjoin one another directly and in a plastically deformed manner in a compressed state.

2. The tube according of claim 1 , in combination with a building, wherein electric lines for the electrical power supply of the building are installed in the tube.

3. The tube according to claim 1 , in combination with electric lines that provide electrical power supply of a building.

4. A metallic, electrically conductive tube configured to install electric lines for an electrical power supply of a building in the tube, comprising:
an electrically conductive and metallic tubular connection part having an inner surface;
first and second electrically conductive and metallic tube sections which are connected to one another by the tubular connection part in an extension direction of the tube, the first tube section having first and second opposite ends, a first outer surface, and a first end section at the first end thereof, the second tube section having first and second opposite ends, a second outer surface and a second end section at the second end thereof, the first end section and the second end section facing one another, wherein the inner surface of the connection part faces the first outer surface and overlaps the first outer surface in a first overlapping section, the inner surface of the connection part faces the second outer surface and overlaps the second outer surface in a second overlapping section, the connection part overlaps the first end of the first tube section and overlaps the second end of the second tube section, wherein connection of the tube sections is provided by compression and plastic deformation of the connection part in the first and second overlapping sections and of the first and second tube sections in the first and second end sections, in which they adjoin one another directly and in a plastically deformed manner in a compressed state;
a first contact providing an indentation in the inner surface and/or in the first outer surface in the first overlapping section to form an electrically conductive connection between the first end section and the connection part when in the compressed state;
a second contact providing an indentation in the inner surface and/or the second outer surface in the second overlapping section to form an electrically conductive connection between the second end section and the connection part when in the compressed state; and
an electrically conductive contact fluid between the tubular connection part and the first and second tube sections.

5. The tube according to claim 4 , wherein the contact fluid is formed by grease.

6. The tube according to claim 4 , wherein the contact fluid contains solid fractions such as soot and/or carbon particles in order to achieve the conductivity.

7. The tube according to claim 4 , wherein prior to connection of the connection part with the first and second tube sections, the connection part has a cover element attached thereto for protecting the contact fluid.

8. The tube according of claim 4 , in combination with a building, wherein electric lines for the electrical power supply of the building are installed in the tube.

9. The tube according to claim 4 , in combination with electric lines that provide electrical power supply of a building.

10. The tube according to claim 1 , wherein each first indentation extends circumferentially along the inner surface of the connection part, and each second indentation extends circumferentially along the inner surface of the connection part.

Assignees

• Klauke Gmbh Gustav

Inventors

• Frenken Egbert

Classifications

• H02G3/22 Primary

  Installations of cables or lines through walls, floors or ceilings, e.g. into buildings · CPC title

• H02G3/0481 Primary

  with a circular cross-section (H02G3/0468, H02G3/0475 take precedence) · CPC title

• H02G3/06

  Joints for connecting lengths of protective tubing {or channels}, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint · CPC title

• H02G3/40

  using separate protective tubing in the conduits or ducts · CPC title