Fluid Dispenser Actuation Indicator Mechanism
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Solution Overview
Problem
Existing fluid or powder dispenser devices often confuse novice users about whether they have been actuated, as there is no clear indication of usage, and they are complex and costly to manufacture and assemble.
Innovation Solution
A dispenser device with a mechanical opening system and an indicator that changes visibility states from visible to non-visible upon actuation, using a slidable flexible member and a pusher element to inform the user of usage, while being simple and inexpensive to produce.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a mechanical opening system with indicator is added to provide clear user feedback, then user information is improved, but device complexity increases
Solution Approach 1:
The indicator uses visibility state changes (visible through cutout when not actuated, hidden when actuated) to provide clear user feedback on actuation status, resolving the information loss problem without complex electronics
Solution Approach 2:
The mechanical opening system automatically moves the closure element and indicator during normal actuation sequence, providing feedback without requiring separate control mechanisms or user intervention beyond normal operation
Solution Approach 3:
The indicator is integrated with the existing mechanical opening system components (closure element, pusher element, piston) rather than being a separate system, minimizing additional complexity while providing the needed information feedback
2Ease of operation
If a mechanical opening system with indicator is added to provide clear user feedback, then ease of operation is improved, but manufacturing cost increases
Solution Approach 1:
The indicator provides clear visual feedback through visibility changes that are easy for users to understand, improving ease of operation without requiring expensive electronic displays or sensors
Solution Approach 2:
The indicator is passively moved by the existing mechanical actuation sequence, requiring no additional motors, batteries, or control circuits, thus keeping manufacturing costs low
Solution Approach 3:
The indicator information is extracted from the existing mechanical movement rather than requiring a separate information generation system, reducing manufacturing complexity and cost
3Device complexity
If existing dispenser devices are used without clear indication, then device complexity is reduced, but loss of information occurs
Solution Approach 1:
The indicator uses visibility state changes (visible through cutout when not actuated, hidden when actuated) to provide clear user feedback on actuation status, resolving the information loss problem without complex electronics
Solution Approach 2:
The mechanical opening system provides immediate tactile and visual feedback to the user during actuation, confirming that the device has been used and the composition dispensed, eliminating the information loss about actuation status
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 device provides clear user feedback on actuation status and is cost-effective to manufacture and assemble, ensuring users know if the device has been used and preventing confusion.
Implementation Method 1
a piston that slides in an air chamber between a rest position and a dispensing position
Implementation Method 2
generating a flow of air under pressure
Implementation Method 3
the indicator (100) is pulled by said pusher element, so that, at the end of actuation, all of said indicator is arranged inside said air chamber
Data Source
AI summary
A dispenser device having a dispenser head; an air expeller (20) for generating a flow of air with a piston (21) that slides in an air chamber (22); and a reservoir (30) containing a dose of composition, the reservoir (30) including an air inlet (31) connected to the air expeller (20), and a composition outlet (32) connected to the dispenser outlet (10), the air inlet (31) including a composition retainer member (40), and the composition outlet (32) closed by a closure element (50). The device has an opening system (61, 62) and an indicator (100; 50) that before actuation is in a first state and after actuation passes into a second state. The device includes a pusher element (25) secured to the piston (21). The dispenser head (1) includes a skirt (5) arranged around the air chamber (22), the bottom axial edge of the skirt (5) including a cutout (6).