US 11,096,515 B2 · Passive metering for pour-over coffee brewing

Abstract

In pour-over brewing, a vessel containing water can be suspended over a brew basket so that the water can drain, under gravity, into the brew basket and onto the coffee, and the water level in the brew basket is used to regulate the flow of water from the vessel. A vessel that is closed, other than the mouth thereof, and containing brew-heated water, is suspended over the brew basket so that the water can drain from the mouth of the vessel into the brew basket and into the ground coffee to brew liquid coffee, which drains into a container. Rising of the water in the brew basket causes interruption of drainage of the water from the mouth of the vessel into the brew basket, and lowering of the water in the brew basket causes resumption of drainage of the water from the mouth of the vessel into the brew basket.

Claims5

Dependent claims

A passive metering valve, comprising:

a float portion;
a reservoir carried by the float portion;
the reservoir having an open superior end adapted for fluid communication with a water vessel to receive water therefrom;
the passive metering valve having at least one overflow path adapted for overflowing into a brew basket.

1 more element

A passive metering valve, comprising:

a float portion;
a reservoir carried by the float portion;
the reservoir having an open superior end adapted for fluid communication with a water vessel to receive water therefrom;
the passive metering valve having at least one overflow path adapted for overflowing into a brew basket;
wherein, in use:
rising of a level of the water in the brew basket causes interruption of drainage of the water from the mouth of the vessel into the brew basket by flotation of the float portion raising the passive metering valve until the water in the reservoir obstructs the flow of air into the vessel;
and
lowering of the level of the water in the brew basket causes resumption of drainage of the water from the mouth of the vessel into the brew basket by flotation of the float portion lowering the passive metering valve until the flow of air into the vessel is unobstructed by the water in the reservoir and the water in the reservoir overflows from the reservoir into the brew basket upon displacement by the water from the vessel.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/947,771Filed 6 Apr 2018 · us provisional application

Priority

9 Apr 2017

Published

US 2018/0289198 A111 Oct 2018

Granted

24 Aug 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A47J 31/106
Coffee-making apparatus, in which the brewing vessel , i.e. water heating container, is placed above or in the upper part of the beverage…: with a…
A23F 5/26
Extraction of coffee ; Coffee extracts ; Making instant coffee: extraction of water soluble constituents
A47J 31/02
Apparatus for making beverages: coffee-making machines with removable extraction cups, to be placed on top of drinking-vessels i.e. coffee-makers…
A47J 31/46
Parts or details or accessories of beverage-making apparatus: dispensing spouts, pumps, drain valves or like liquid transporting devices

Passive metering for pour-over coffee brewing

Life of this patent

Passive metering for pour-over coffee brewing

Life of this patent

Abstract

Claims5