# US 10,307,009 B2 · Filter vessel

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- Number: US 10,307,009 B2
- Document ID: US10307009B2
- Status: Granted
- Kind: B2
- Application number: 15/688,832
- Filed: 2017-08-28
- Published: 2018-03-01
- Granted: 2019-06-04
- Earliest claimed: 2016-08-29
- Assignees: Melitta Europa GmbH & Co. KG
- Applicants: Melitta Europa GmbH & Co. KG
- Inventors: Andreas Sachtleben; Markus Schaefer
- Web page: https://patentgrep.com/patent/US10307009B2

## CPC

- A47J 31/06: Filters or strainers for coffee or tea makers {; Holders therefor}
- A47J 31/02: Coffee-making machines with removable extraction cups, to be placed on top of drinking-vessels {i.e. coffee-makers with removable brewing vessels, to be placed on top of beverage containers, into which hot water is poured}, e.g. cafe filter (filters A47J31/06)
- A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES

## Abstract

A filter vessel for accommodating a filter insert made of water-permeable material and fillable with coffee grounds. The filter vessel includes a bottom; and side walls upwardly extending from the bottom and spreading outwardly. The bottom includes at least two openings through which a filtrate can pass. The bottom includes a separating element in a central region of the bottom. The separating element divides a region above the bottom into two approximately equal sized drainage chambers. Each drainage chamber includes at least one of the at least two openings for discharging the filtrate.

## Claims

### Claim 1

A filter vessel for accommodating a filter insert made of water-permeable material and which is fillable with coffee grounds, the filter vessel comprising
a bottom including at least two openings through which a filtrate can pass; and
side walls upwardly extending from the bottom and spreading outwardly;
wherein the bottom includes a central region and a separating element in the central region of the bottom, the separating element dividing a region above the bottom into two approximately equal sized drainage chambers, and each drainage chamber including at least one opening-for discharging the filtrate; and
wherein the filter vessel has an underside, and further including a downwardly projecting web between the at least two openings on the underside of the filter vessel, wherein the downwardly projecting web extends parallel to the separating element.

### Claim 2 (depends on 1)

The filter vessel according to claim 1, wherein the separating element is adapted to support a lower edge of the filter insert when the filter insert is inserted into the filter vessel.

### Claim 3 (depends on 1)

The filter vessel according to claim 1, wherein the separating element is arranged to present a partition wall between the two drainage chambers.

### Claim 4 (depends on 1)

The filter vessel according to claim 1, wherein each drainage chamber has a bottom which descends towards the respective opening.

### Claim 5 (depends on 4)

The filter vessel according to claim 4, wherein each bottom has an inclination relative to a horizontal line at an angle between 3° and 30°.

### Claim 6 (depends on 1)

The filter vessel according to claim 1, wherein the spreading side walls of the filter vessel have an inner side that includes ribs extending towards the bottom.

### Claim 7 (depends on 6)

The filter vessel according to claim 6, wherein the ribs are arranged symmetrically to a vertical plane through the separating element.

### Claim 8 (depends on 1)

The filter vessel according to claim 1, wherein each drainage chamber includes at least one bottom rib extending from the separating element towards the at least one opening in each drainage chamber.

### Claim 9 (depends on 8)

The filter vessel according to claim 8, wherein the separating element has a height higher than the at least one bottom rib extending from the separating element in each drainage chamber.

### Claim 10 (depends on 1)

The filter vessel according to claim 1, further including a guide element for the filtrate disposed in each opening.

### Claim 11 (depends on 1)

The filter vessel according to claim 1, wherein the filter vessel has an underside including a support plate having a downwardly facing edge.

### Claim 12 (depends on 11)

The filter vessel according to claim 11, wherein the support plate and/or the edge has a recess or a viewing window.

### Claim 13 (depends on 1)

A filter vessel according to claim 1, wherein the underside further includes at least two approximately radially oriented support webs, relative to one of the openings, and having lower edges defining a plane, the underside further including at least one web adjoining the downward projecting web and having a lower edge vertically offset upwardly relative to the downwardly projecting web between the two openings and located in the same plane as the lower edges of the two approximately radially oriented webs.

### Claim 14 (depends on 1)

The filter vessel according to claim 1, wherein the filter vessel has an underside, and further including a tubular or U-shaped rib arranged around each opening on the underside of the filter vessel.