Vacuum cleaner hose

Patent metadata

Field	Value
Publication number	US-11324370-B2
Application number	US-201916975143-A
Country	US
Kind code	B2
Filing date	Mar 14, 2019
Priority date	Mar 22, 2018
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

Vacuum cleaner hose for connecting to a wet and dry vacuum cleaner, wherein the vacuum cleaner hose has an inner lumen extending in the longitudinal direction, wherein a flow guiding geometry is formed within the lumen or adjoining the lumen, by which a suction flow occurring during the operation of the wet and dry vacuum cleaner can be influenced.

First claim

What is claimed is:

1. A vacuum cleaner hose for connecting to a wet and dry vacuum cleaner, the vacuum cleaner hose comprising:
an inner lumen extending in a longitudinal direction;
a flow guiding geometry formed within the lumen or adjoining the lumen, the flow guiding geometry influencing a suction flow occurring during the operation of the wet and dry vacuum cleaner;
wherein the flow guiding geometry has a continuous web.

2. The vacuum cleaner hose as recited in claim 1 wherein the flow guiding geometry extends inward in a radial direction.

3. The vacuum cleaner hose as recited in claim 1 wherein the flow guiding geometry extends or is distributed over a total length of the vacuum cleaner hose.

4. The vacuum cleaner hose as recited in claim 3 wherein flow guiding geometry extends or is distributed in the form of a spiral.

5. The vacuum cleaner hose as recited in claim 1 wherein the flow guiding geometry has a pyramidal or barrel-shaped cross section.

6. The vacuum cleaner hose as recited in claim 1 wherein the flow guiding geometry is welded to an inner surface of the vacuum cleaner hose.

7. The vacuum cleaner hose as recited in claim 1 wherein the flow guiding geometry is formed by an inwardly arched portion or indentation of the hose outside oriented into the hose interior.

8. The vacuum cleaner hose as recited in claim 1 wherein the vacuum cleaner hose is composed of plastic.

9. The vacuum cleaner hose as recited in claim 1 wherein the vacuum cleaner hose has a substantially constant outside diameter.

10. The vacuum cleaner hose as recited in claim 1 wherein is the vacuum cleaner hose is designed as a spiral hose.

11. A suction system comprising a wet and dry vacuum cleaner and a vacuum cleaner hose as recited in claim 1 .

12. The vacuum cleaner hose as recited in claim 9 wherein the outer diameter is constant over an entire length of the vacuum cleaner hose.

13. The vacuum cleaner hose as recited in claim 9 wherein the continuous web has the barrel-shaped cross section.

Assignees

• Hilti Ag

Inventors

• Hanslmeier Xaver

Classifications

• F16L11/121

  specially profiled cross sections · CPC title

• A47L7/0014

  with additional means or devices between nozzle and casing · CPC title

• F16L11/12

  with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting (F16L11/11 takes precedence) · CPC title

• A47L7/0004

  Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners (floor-scrubbing machines taking-up dirty liquid by suction A47L11/30) · CPC title

• F16L11/04

  made of rubber or flexible plastics · CPC title