Filter cassette

Patent metadata

Field	Value
Publication number	US-12414662-B2
Application number	US-201816771207-A
Country	US
Kind code	B2
Filing date	Nov 19, 2018
Priority date	Dec 15, 2017
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A filter cassette for a vacuum cleaner appliance positionable in the vacuum cleaner appliance in an airflow drawn in by the vacuum cleaner appliance, wherein the filter cassette contains substantially a lateral surface, an upper opening, and a lower opening, such that the drawn-in airflow, in order to filter out dirt particles, can flow into the filter cassette through the lower opening and out of the filter cassette through the upper opening. A first sealing element extends in a first plane and the a second sealing element extends in a second plane, and wherein the first and second planes are arranged at an acute angle to one another, such that the second sealing element is oriented substantially horizontally when the filter cassette is positioned in a filter cassette receptacle accessible from outside the vacuum cleaner appliance. A vacuum cleaner appliance having a filter cassette receptacle for receiving a filter cassette. The filter cassette receptacle extends substantially in a center plane that is positioned at an acute angle to a parting plane.

First claim

What is claimed is:

1. A filter cassette for a vacuum cleaner appliance, the filter cassette positionable in the vacuum cleaner appliance such that the filter cassette is positionable in an airflow drawn in by the vacuum cleaner appliance, the filter cassette comprising:
a lateral surface;
first and second side walls extending perpendicularly from the lateral surface;
an upper opening;
a lower opening, such that the drawn-in airflow, in order to filter out dirt particles, can flow into the filter cassette through the lower opening and out of the filter cassette through the upper opening;
at least one first and second seal element, wherein the first seal element extends in a first plane between the first and second side walls and the second seal element extends in a second plane between the first and second side walls, the first and second planes being arranged at an acute angle to one another, such that the second seal element is capable of being oriented substantially horizontally when the filter cassette is positioned in a filter cassette receptacle of the vacuum cleaner appliance, the filter cassette capable of being insertable and removable into the vacuum cleaner appliance from an outside; and
a filter element extending in the first plane;
wherein the second seal element has an end at the lateral surface between an upper side edge and a lower side edge of the lateral surface; wherein the end of the second seal element runs parallel to the upper side and lower side edge of the lateral surface; wherein the first seal element has a first seal element end at the upper side edge; and wherein the end of the second seal element is closer to the first seal element and the upper side edge than the lower side edge.

2. The filter cassette as recited in claim 1 , wherein the acute angle between the first and the second plane has a value of 45°.

3. A vacuum cleaner appliance comprising:
a bottom defining a bottom plane coplanar or parallel to a bottom surface of the bottom; and
a filter cassette positioned in the vacuum cleaner appliance such that the filter cassette is positionable in an airflow drawn in by the vacuum cleaner appliance, the filter cassette including:
a lateral surface;
an upper opening;
a lower opening, such that the drawn-in airflow, in order to filter out dirt particles, can flow into the filter cassette through the lower opening and out of the filter cassette through the upper opening; and
at least one first and second seal element, the first seal element extending in a first plane and the second seal element extending in a second plane, the first and second planes being arranged at an acute angle to one another, such that the second seal element and the second plane are oriented substantially parallel to the bottom plane when the filter cassette is positioned in a filter cassette receptacle of the vacuum cleaner appliance, the filter cassette receptacle being accessible from outside the vacuum cleaner appliance;
the first seal element and the upper opening of the filter cassette being located on an upper side of the second plane and the lower opening of the filter cassette being located below the second plane.

4. The vacuum cleaner appliance as recited in claim 3 wherein the acute angle between the first and the second plane has a value of 45°.

5. The vacuum cleaner appliance as recited in claim 3 wherein the first plane is located in the filter cassette receptacle of the vacuum cleaner appliance at an acute angle to the bottom plane, such that the first seal element bears against a first contact surface of the filter cassette receptacle and the second seal element bears against a second contact surface of the filter cassette receptacle.

6. The vacuum cleaner appliance as recited in claim 3 wherein the filter cassette receptacle has two planar surfaces extending at an angle to the bottom plane and the second plane.

7. The vacuum cleaner appliance as recited in claim 3 wherein the second seal element has an end at the lateral surface between an upper side edge and a lower side edge of the lateral surface.

8. The vacuum cleaner appliance previously presented as recited in claim 7 wherein the end of the second seal element runs parallel to the upper side and lower side edge of the lateral surface.

9. The vacuum cleaner appliance previously presented as recited in claim 8 wherein the first seal element has a first seal element end at the upper side edge.

10. The vacuum cleaner appliance previously presented as recited in claim 9 wherein the end of the second seal element is closer to the first seal element and the upper side edge than the lower side edge.

11. The vacuum cleaner appliance as recited in claim 3 further comprising wheels at the bottom.

12. A method for introducing a filter cassette into a vacuum cleaner appliance, the method comprising:
positioning the filter cassette in the vacuum cleaner appliance such that the filter cassette is positionable in an airflow drawn in by the vacuum cleaner appliance, the filter cassette including: a lateral surface; first and second side walls extending perpendicularly from the lateral surface; an upper opening; a lower opening, such that the drawn-in airflow, in order to filter out dirt particles, can flow into the filter cassette through the lower opening and out of the filter cassette through the upper opening; and at least one first and second seal element, wherein the first seal element extends in a first plane between the first and second side walls and the second seal element extends in a second plane between the first and second side walls, the first and second planes being arranged at an acute angle to one another,
the positioning including introducing the filter cassette into a filter cassette receptacle of the vacuum cleaner appliance in an insertion direction in order to reach an end position, such that the first seal element bears against a first contact surface of the filter cassette receptacle and the second seal element bears against a second contact surface of the filter cassette receptacle and the second plane is substantially parallel to a bottom plane of the vacuum cleaner appliance, the bottom plane is coplanar or parallel to a bottom surface of a bottom of the vacuum cleaner appliance, and the filter cassette when introduced has the upper opening on one side of the second plane and the lower opening on another side of the second plane when the second seal element is in the second plane.

13. A filter cassette for a vacuum cleaner appliance, the filter cassette positionable in the vacuum cleaner appliance such that the filter cassette is positionable in an airflow drawn in by the vacuum cleaner appliance, the filter cassette comprising:
a lateral surface;
first and second side walls extending perpendicularly from the lateral surface;
an upper opening;
a lower opening, such that the drawn-in airflow, in order to filter out dirt particles, can flow into the filter cassette through the lower opening and out of the filter cassette through the upper opening; and
at least one first and second seal element, wherein the first seal element extends in a first plane between the first and second side walls and the second seal element extends in a second plane between the first and second side walls, the first and second planes being arranged at an acute angle to one another, such that the second seal element is capable of being oriented substantially horizontally when the filter cassette is positioned in a filter cassette receptacle of the vacuum cleaner appliance, the filter cassette capable of being insertable and removable into the vacuum cleaner appliance from an outside

Assignees

• Hilti Ag

Inventors

• Hanslmeier Xaver
• Ohlendorf Oliver
• Podhorny Roman

Classifications

• B01D46/0005

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• A47L9/122 Primary

  flat · CPC title