US 2,017,303,712 · Filed 2016-07-14

The Manual Coffee Maker That Needs Zero Electricity

Imagine a travel mug that brews coffee using air pressure instead of electricity. You load a capsule, pump out some air, and pressure builds up inside to force hot water through the grounds into your cup—no plugs, no batteries, just physics.

Curated and verified by the IsItPatented Editorial team

The plain-English version

What it protects

The claim covers a portable drinking cup with a built-in capsule percolator that operates by creating a pressure difference between two internal chambers. What's protected here is the combination of an air-extracting mechanism (which removes air from one space), a sealing mechanism on the lid (which lets outside air into another space), and the resulting pressure differential that pushes liquid through a beverage capsule. The specific design of how these three elements work together to brew without external power is what the patent locks down.

Why it matters

This patent protects a genuinely novel approach to portable beverage brewing at a time when capsule coffee systems were booming but nearly all required electricity. By eliminating the need for batteries or power outlets, the inventor created a solution for people in remote locations, during travel, or anywhere a plug isn't available. The mechanical simplicity—relying on atmospheric pressure and air extraction rather than electronics—could appeal to consumers wanting durability and minimal maintenance.

Real-world use

A backpacker brewing espresso on a mountain trail or an office worker making tea during a flight, with no electricity needed.

Original USPTO abstract

The disclosure herein relates to a portable capsule percolator with a drinking cup. In particular, the disclosure relates to a portable and easy to use capsule percolator, operable, using capsules readily available on the market, for making a desired percolated beverage such as coffee, tea, vegetarian drinks and the like, on the go, at the office, while travelling and more specifically, whenever or wherever such a drink is desired. The portable capsule percolator is operable by a pressure differential mechanism without the need of a power source. The portable capsule percolator includes an air-extracting mechanism operable to extract air from a first internal space and a sealing mechanism associated with the flask lid section configured to let outside air into a second internal space generating the pressure differential, activating the percolating process by pushing the liquid through a beverage capsule into a percolating section.

Patent details

Publication number: US 2,017,303,712
Filing date: 2016-07-14
Grant date: Application — not yet granted
Assignee: Arie Pisarevsky
Inventor(s): PISAREVSKY ARIE
CPC class: A47G19/2272

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