Apparatus for compensating pressure surges
AssigneeHilti Aktiengesellschaft
InventorAnton Kidess
Life of this patent
Estimating the term…
Abstract
An apparatus for a vacuum cleaner for compensating air pressure surges, where a first air flow is flowable in a first flow direction through the apparatus and a second air flow is flowable in a second flow direction through the apparatus, includes a main body having a first cross-sectional area of flow and a flow resistance element. A free end of the flow resistance element projects from the main body and produces a second cross-sectional area of flow. The first cross-sectional area of flow is larger than the second cross-sectional area of flow such that the second air flow flowable in the second flow direction is reduced.
Claims4
An apparatus for a vacuum cleaner for compensating air pressure surges, comprising:
- a main body having a first cross-sectional area of flow, wherein in a vacuum cleaning mode a first air flow is flowable in a first flow direction through the first cross-sectional area and through an entirety of the apparatus;
- and
- a flow resistance element, wherein a free end of the flow resistance element projects from the main body and has a second cross-sectional area of flow, wherein the first cross-sectional area of flow is larger than the second cross-sectional area of flow, and wherein in a filter cleaning mode a second air flow is flowable in the second flow direction through the second cross-sectional area and through the entirety of the apparatus.
A device, comprising:
- an apparatus for a vacuum cleaner for compensating air pressure surges, wherein a first air flow is flowable in a first flow direction through the apparatus and a second air flow is flowable in a second flow direction through the apparatus, wherein the apparatus includes:
- a main body having a first cross-sectional area of flow;
- and
- a flow resistance element, wherein a free end of the flow resistance element projects from the main body and produces a second cross-sectional area of flow and wherein the first cross-sectional area of flow is larger than the second cross-sectional area of flow such that the second air flow flowable in the second flow direction is reduced;
- and
- a vacuum cleaner hose couplable to the apparatus.
A device, comprising:
- an apparatus for a vacuum cleaner for compensating air pressure surges, wherein a first air flow is flowable in a first flow direction through the apparatus and a second air flow is flowable in a second flow direction through the apparatus, wherein the apparatus includes:
- a main body having a first cross-sectional area of flow;
- and
- a flow resistance element, wherein a free end of the flow resistance element projects from the main body and produces a second cross-sectional area of flow and wherein the first cross-sectional area of flow is larger than the second cross-sectional area of flow such that the second air flow flowable in the second flow direction is reduced;
- and
- a vacuum cleaner couplable to the apparatus.
Dependencies are inferred from the claim text.