Coffee brewing press with displaceable agitator
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Solution Overview
Problem
Existing beverage brewing devices, such as French Press, lack effective agitation mechanisms to enhance the brewing process, resulting in suboptimal extraction of flavors from coffee grinds.
Innovation Solution
A beverage brewing press with a displaceable agitator blade assembly positioned below the sealing filter piston assembly, allowing for improved agitation during brewing, and a spring mechanism to absorb displacement during the pressing operation, ensuring efficient liquid and grinds interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the agitator blades are disposed immediately below the sealing filter piston assembly, then the device structure is simplified, but the agitation of the liquid and coffee grinds is decreased
Solution Approach 1:
The agitator shaft is made displaceable relative to the piston assembly, allowing the system to dynamically adjust the agitator position based on operational requirements. During brewing, the agitator is positioned centrally for optimal agitation; during pressing, it is displaced downward to clear the brewing chamber.
Solution Approach 2:
The invention adds a vertical displacement dimension to the agitator shaft, enabling it to move between two functional positions: a central position for agitation and a lower position for pressing clearance. This dimensional change allows the system to resolve the conflict between structural simplicity and agitation effectiveness.
2Productivity
If the agitator shaft is made displaceable to improve agitation, then the brewing effectiveness is improved, but the device complexity increases
Solution Approach 1:
The displaceable agitator shaft is integrated with the existing piston assembly structure, combining two functional elements (agitation and pressing) into a unified mechanism. The agitator shaft shares the same vertical pathway as the piston, eliminating the need for separate actuation systems.
Solution Approach 2:
The system uses its own pressing motion to automatically displace the agitator shaft to the appropriate position. When the piston moves downward for pressing, it naturally pushes the agitator shaft downward as well, eliminating the need for a separate displacement mechanism.
3Device complexity
If the agitator blades remain stationary during pressing, then the structure is simpler, but the brewed liquid cannot be efficiently forced through the filter
Solution Approach 1:
The agitator shaft dynamically changes position during the pressing operation, moving downward with the piston to clear the brewing chamber. This dynamic positioning ensures that the agitator blades do not obstruct the filtration path while maintaining their agitation function during brewing.
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
The solution enhances the brewing process by providing substantial agitation of the liquid and grinds, leading to improved flavor extraction and efficient separation of brewed coffee from grounds.
Implementation Method 1
a compression spring in communication with the agitator shaft absorbs the displacement of the sealing filter piston assembly toward the agitator blades
Data Source
AI summary
A beverage brewing press has an open topped container for receiving a liquid and particulate matter to be brewed into a beverage, a hollow plunger shaft, a sealing filter piston disposed on the plunger shaft, the sealing filter piston having a peripheral seal slidably sealing to an interior of the container and for separating the interior of the container into a first compartment and a second compartment, the piston having a filter thereon for allowing brewed beverage to be filtered from the first compartment into the second compartment upon displacement of the piston, an agitator disposed below the piston, the agitator being fastened to an agitator shaft disposed concentrically rotatably and slidably in the hollow plunger shaft, a displaceable distance being provided between the agitator and the piston, the agitator shaft being slidable in the plunger shaft to take-up the displaceable distance between the agitator and the piston when the piston moves toward the agitator due to an axial force exerted on the plunger shaft moving the piston in the direction of the agitator. A spring is provided to absorb the displaceable distance and may also transmit rotational force to the agitator.