US 4,846,052 · Granted 1989-07-11

The Nespresso Patent That Made Instant Coffee Pods Click Into Place

This patent describes a mechanical device that punctures and extracts liquid or paste from sealed cartridges—essentially the guts of a coffee pod machine. A spring-loaded ring holds the cartridge steady while a needle pierces it, then releases the spent pod when you're done. It's the reason your morning espresso pod pops out so cleanly.

Curated and verified by the IsItPatented Editorial team

The plain-English version

What it protects

The claim covers a cartridge extraction device with a hollow housing that accepts a cartridge, an internal needle that punctures it, and a spring-loaded ring that both holds the cartridge in place during piercing and automatically releases it afterward. What's protected here is the specific mechanical arrangement: the way the spring connects the ring to the housing body, the position of the stop that catches the ring's lug, and how the cartridge holder's edge grips the rim throughout extraction.

Why it matters

This patent was granted to Nestec (Nespresso's parent company) in 1989, right when single-serve coffee systems were emerging as a consumer category. The mechanical elegance of automatic cartridge release without manual disassembly became central to Nespresso's user experience and brand identity. Protecting this specific design helped establish barriers against competitors copying their pod-machine mechanics during the format's explosive growth.

Real-world use

Every time you insert a Nespresso capsule into a machine and it automatically ejects after brewing, you're using the mechanical principle this patent locks down—the spring-and-ring system that grips and releases with a satisfying click.

Original USPTO abstract

A device for extracting material contained in cartridges has a housing body having a hollow interior, defined by the inside of the housing body which extends to and terminates at an open bottom, in a form which substantially conforms to the form of a cartridge to be extracted for accepting a cartridge for extraction. An upper portion of the housing includes an injection element having a point which protrudes into the hollow interior for opening and penetrating a cartridge for extraction of the material in the cartridge. The outside of the housing body has an upper protruding part and a lower protruding stop beneath and displaced from the upper protruding part. A movable ring circumscribes the housing and the stop and has a lug protruding towards the outside of the housing body which is capable of communicating with the stop, the lug being positioned on the ring such that when the lug and stop are in communication, the ring protrudes below the bottom of the housing. A spring is confined between the lug and upper protruding part and the ring and the housing body for urging the lug into communication with the stop. A cartridge holder has an edge for holding a rim of a cartridge and cooperates with the movable ring for holding the rim of the cartridge during extraction and for releasing the cartridge after extraction.

Patent details

Publication number: US 4,846,052
Filing date: 1987-03-27
Grant date: 1989-07-11
Assignee: Nestec S.A.
Inventor(s): FAVRE; ERIC, MASEK; PETR
CPC class: A47J31/3695

View original record on Google Patents →

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