Air outlet system for a portable dry vacuum cleaner

Patent metadata

Field	Value
Publication number	US-11925302-B2
Application number	US-201917048173-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	May 9, 2018
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

An air outlet system for a portable dry vacuum cleaner, via which intake air sucked in by the dry vacuum cleaner can be expelled into the surroundings as exhaust air, wherein the air outlet system has an accommodation bay, which is to be arranged in a housing of the dry vacuum cleaner and in which optionally an air filter cartridge or an outlet adapter may be accommodated, wherein the outlet adapter has an outlet fitting for the connection of a blower hose and the air filter cartridge is free from an outlet fitting of this kind.

First claim

What is claimed is:

1. An air outlet system for a portable dry vacuum cleaner, intake air sucked in by the dry vacuum cleaner being expellable into surroundings of the portable dry vacuum cleaner as exhaust air via the air outlet system, the air outlet system comprising:
two modular parts including an outlet adapter having an outlet fitting for connection of a blower hose and an air filter cartridge free from an outlet fitting for connection of the blower hose; and
an accommodation bay arrangable in a housing of the dry vacuum cleaner and capable of accommodating alternately one of the two modular parts.

2. The air outlet system as recited in claim 1 wherein the accommodation bay accommodates the outlet adapter without accommodating the outlet fitting.

3. The air outlet system as recited in claim 2 wherein the outlet adapter has a cylindrical opening with an offset stop.

4. The air outlet system as recited in claim 2 wherein the outlet adapter is held securely within the accommodation bay via two clamping pins.

5. The air outlet system as recited in claim 4 further comprising at least one retention dome for fastening the outlet adapter, the at least one retention dome being provided in the accommodation bay and engaging with the two clamping pins.

6. The air outlet system as recited in claim 1 wherein the accommodation bay accommodates the air filter cartridge without accommodating the outlet adapter.

7. The air outlet system as recited in claim 1 wherein the accommodation bay forms a diffuser.

8. The air outlet system as recited in claim 1 further comprising at least one retention dome for fastening the outlet adapter, the at least one retention dome being provided in the accommodation bay.

9. The air outlet system as recited in claim 1 wherein the air filter cartridge has a frame having a plurality of filter openings.

10. A dry vacuum cleaner comprising:
the air outlet system as recited in claim 1 ;
a housing, the accommodation bay of the air outlet system being arranged in the housing; and
an inlet fitting designed for the connection of a suction hose and arranged on the housing, the intake air being sucked in during operation via the inlet fitting, the accommodation bay extending across a corner of the housing.

11. The dry vacuum cleaner as recited in claim 10 wherein the housing is of cuboidal design.

12. The dry vacuum cleaner as recited in claim 10 wherein the accommodation bay extends at least over 25 percent of a total height of the housing.

13. The dry vacuum cleaner as recited in claim 10 wherein the inlet fitting and the accommodation bay are situated on opposite sides of the housing.

14. The dry vacuum cleaner as recited in claim 10 wherein the dry vacuum cleaner is of battery-operated design.

15. The dry vacuum cleaner as recited in claim 10 wherein the dry vacuum cleaner is of portable design with a weight of less than 10 kilograms.

16. The dry vacuum cleaner as recited in claim 15 wherein the dry vacuum cleaner is of battery-operated design.

Assignees

• Hilti Ag

Inventors

• Wörz Sonya

Classifications

• A47L5/14 Primary

  cleaning by blowing-off, also combined with suction cleaning · CPC title

• A47L5/24

  Hand-supported suction cleaners · CPC title

• A47L7/04 Primary

  for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air (spraying or atomising in general B05) · CPC title

• A47L9/22

  Mountings for motor fan assemblies · CPC title

• A47L9/248

  Parts, details or accessories of hoses or pipes (nozzles A47L9/02) · CPC title