# US 2025/0082148 A1 · Agglomeration unit, suction device and method for agglomerating vacuumed material

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- Number: US 2025/0082148 A1
- Document ID: US20250082148A1
- Status: Published application
- Kind: A1
- Application number: 18/814,693
- Filed: 2024-08-26
- Published: 2025-03-13
- Earliest claimed: 2023-09-07
- Assignees: Hilti Aktiengesellschaft
- Applicants: Hilti Aktiengesellschaft
- Inventors: Stefan KRÄMER
- Web page: https://patentgrep.com/patent/US20250082148A1

## CPC

- A47L 7/0095: {Suction cleaners or attachments adapted to collect dust or waste from power tools}
- A47L 9/108: {Dust compression means}
- A47L 9/102: {Dust separators (cyclones A47L9/16)}
- A47L 9/12: Dry filters
- B30B 9/28: for forming shaped articles (from material in powder, granular, or paste form, e.g. briquetting presses B30B11/00)
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- B30B: PRESSES IN GENERAL (producing ultra-high pressure or ultra-high pressure and high temperature to effect modifications of a substance, e.g. for making artificial diamonds B01J3/00 ){(compressing means for refuse receptacles B65F1/1405)}

## Abstract

An agglomeration unit for agglomerating vacuumed material, wherein the agglomeration unit has an agglomeration chamber, wherein an agglomerator for agglomerating the vacuumed material is provided in the agglomeration chamber. The vacuumed material can be processed into a particularly stable agglomerate which can be disposed of safely and in an uncomplicated manner. A suction device which includes an agglomeration unit of this kind, and to a method for agglomerating vacuumed material by a suction device of this kind is also provided.

## Claims

### Claim 1

Agglomeration unit for agglomerating vacuumed material, the agglomeration unit comprising:
an agglomeration chamber; and
an agglomerator for agglomerating the vacuumed material in the agglomeration chamber.

### Claim 2 (depends on 1)

The agglomeration unit as recited in claim 1 wherein the agglomerator includes a piston, spiral press, screw press or spindle press.

### Claim 3 (depends on 1)

The agglomeration unit as recited in claim 1 wherein the agglomerator has an effective surface in contact with the vacuumed material during agglomeration, a size of the effective surface being less than or equal to 200 cm2.

### Claim 4 (depends on 1)

The agglomeration unit as recited in claim 1 further comprising a drive driving the the agglomerator.

### Claim 5 (depends on 4)

The agglomeration unit as recited in claim 4 wherein the drive is a hydraulic drive or as a pneumatic drive.

### Claim 6 (depends on 1)

The agglomeration unit as recited in claim 1 wherein a force is exerted on the vacuumed material S during agglomeration, wherein the force is determined by a pressure in a range of 50 to 1000 megapascals.

### Claim 7 (depends on 1)

The agglomeration unit as recited in claim 1 wherein a force is exerted on the vacuumed material S during agglomeration, wherein the force is determined by a pressure in a range of 50 to 1000 megapascals.

### Claim 8 (depends on 1)

The agglomeration unit as recited in claim 1 wherein a force is exerted on the vacuumed material S during agglomeration, wherein the force is determined by a pressure in a range of 250 to 500 megapascals.

### Claim 9 (depends on 1)

The agglomeration unit as recited in claim 1 wherein a force exerted on the vacuumed material S during agglomeration is exerted in a substantially constant manner.

### Claim 10 (depends on 1)

The agglomeration unit as recited in claim 1 further comprising a binder supply for adding a binder to the vacuumed material.

### Claim 11 (depends on 1)

A suction device comprising: the agglomeration unit as recited in claim 1, the suction device being designed as a construction-grade vacuum cleaner or as a central disposal station.

### Claim 12 (depends on 11)

The suction device as recited in claim 11 further comprising at least one separator for separating particles from the vacuumed material.

### Claim 13 (depends on 11)

The suction device as recited in claim 11 further comprising a dust collecting container for receiving the vacuumed material in addition to the agglomeration chamber.

### Claim 14 (depends on 11)

A method for agglomerating vacuumed material by the suction device as recited in claim 11, the method comprising the steps of:
a) sucking in the vacuumed material via a suction flow,
b) transporting the vacuumed material into the agglomeration chamber of the agglomeration unit of the suction device, and
c) agglomerating the vacuumed material via the agglomerator.

### Claim 15 (depends on 14)

The method as recited in claim 14 wherein particles with a relatively large diameter are separated from the suction flow, ensuring that the particles with the relatively large diameter are not included in the agglomeration process.

### Claim 16 (depends on 14)

The method as recited in claim 14 wherein the particles with the relatively large diameter are collected in a dust collecting container of the suction device.

### Claim 17 (depends on 14)

The method as recited in claim 14 wherein particles with a relatively small diameter are separated from the suction flow via a filter before the particles with the relatively small diameter are transported into the agglomeration chamber for agglomeration.
