Powerless espresso maker

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Solution Overview

Problem

Conventional espresso makers require electrical power to heat and pressurize water, limiting their installation to aircraft galleys and resulting in cooled beverages when served seat-side, with battery-powered solutions adding weight and regulatory complexities.

Innovation Solution

A manual, powerless espresso maker with an integrated thermally insulated water source that uses gravity or vacuum suction to deliver hot water directly to the brewing head, eliminating the need for an external hot water source and reducing the risk of spills and cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If an external hot water source is used, then the espresso maker can be simpler, but the risk of hot water spills and cooling increases

Engineering Contradiction:

Improveespresso maker structureVSAvoidhot water delivery safety

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent combines the hot water source and espresso maker body into a single integrated unit. The hot water source is positioned within the espresso maker body, eliminating the need for separate external hot water containers and delivery mechanisms. This integration removes the risks associated with external hot water transport while maintaining system functionality.

Inventive Principle:

Principle #5Merging (Combining)

2Use of energy by moving object

If electrical power is used, then water heating and pressurization are efficient, but installation is limited to aircraft galleys and beverages cool during delivery

Engineering Contradiction:

Improvewater heating efficiencyVSAvoidinstallation location flexibility

Core Design Contradiction:

Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The patent replaces the electrical heating system with a mechanical/thermal system using pre-heated water from an insulated source. Instead of using electrical elements to heat water during operation, the system uses thermally insulated containers to maintain water temperature mechanically, eliminating the need for electrical power and enabling mobile deployment throughout the aircraft.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system prepares hot water in advance using an insulated thermal source before brewing occurs. The hot water is pre-heated and maintained at temperature through thermal insulation, ready for immediate use when the espresso is prepared. This eliminates the need for on-demand heating during service.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If batteries are installed on the service trolley, then espresso maker can be used in aircraft aisles, but additional weight and regulatory certification requirements increase

Engineering Contradiction:

Improveservice location flexibilityVSAvoidtrolley weight

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent eliminates the battery-powered electrical system entirely and replaces it with a mechanically-operated pump system driven by manual lever action. The thermal insulation provides passive temperature maintenance without requiring electrical power. This mechanical approach removes battery weight while maintaining the ability to serve beverages throughout the aircraft.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Use of energy by moving object

If manual lever operation is used, then the system can be powerless, but water delivery to brewing head must rely on gravity or vacuum suction

Engineering Contradiction:

Improvepower consumptionVSAvoidwater delivery mechanism

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The patent uses a lever-operated piston mechanism that creates vacuum suction to draw hot water from the insulated source through a water line to the brewing head. The piston movement generates negative pressure that pulls water through the system, providing reliable water delivery without requiring external power sources or complex pumping mechanisms.

Inventive Principle:

Principle #29Pneumatics and hydraulics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables seat-side brewing and serving of freshly prepared espresso or coffee beverages without the need for external power, ensuring the beverage remains warm and reducing the weight and regulatory burdens associated with battery-powered solutions.

Implementation Method 1

water is delivered from the thermally insulated water source to the espresso maker body via gravity

Methodology Applied

Scientific EffectGravity: Gravitation

Implementation Method 2

water is delivered from the thermally insulated water source to the espresso maker body via vacuum suction

Methodology Applied

Scientific EffectVacuum suction: Suction

Implementation Method 3

a thermally insulated water source fluidly coupled with the espresso maker body

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS10905276B2Powerless espresso maker

Publication Date: 2021.02.02 SAFRAN CABIN NETHERLANDS NV

AI summary

Embodiments of the present disclosure relate generally to espresso makers that brew beverages without power. The machines are designed to work under manual power, delivering hot water to the brew portion of the machine from an integrated hot water source. The machines may be mounted on aircraft trolleys for seat-side coffee and/or espresso service.