Single-Dose Sanitizing Gel Dispenser with Disposable Cartridge
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Solution Overview
Problem
Conventional sanitizing gel dispensers for toilet bowls are bulky, inconvenient to store, and prone to over-dosing due to step-based dispensing, with the gel often exposed to air and user contact before use.
Innovation Solution
A single-use, single-dose dispenser design featuring a disposable applicator, piston, and plug that prevents gel exposure and over-dosing, with a reusable applicator option allowing for replacement of disposable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a multi-use syringe dispenser with notched piston is used, then the device can dispense preset quantities of gel, but the device becomes bulky and inconvenient to store
Solution Approach 1:
The dispenser is divided into separate components: a reusable applicator body and replaceable cartridges containing the gel. Each cartridge is a self-contained unit with its own piston and gel reservoir, allowing precise dosing without requiring a large multi-use device.
Solution Approach 2:
The invention uses disposable cartridges that contain a single dose of gel with an integrated piston. After one use, the entire cartridge is discarded, eliminating the need for a bulky reusable device with complex mechanisms while maintaining precise dosing.
2Adaptability or versatility
If the gel is stored in a reusable applicator, then the device can be used multiple times, but the gel is exposed to air and user contact between uses
Solution Approach 1:
The gel is segmented into individual single-dose cartridges that remain sealed until use. The reusable applicator body interacts only with the external surface of the cartridge, never contacting the gel directly, thus preventing contamination while allowing repeated use of the applicator.
Solution Approach 2:
The cartridge serves as an intermediary between the reusable applicator and the gel. The applicator pushes the piston through the cartridge wall to dispense gel, but the gel itself never contacts the applicator or air, maintaining sterility while enabling multi-use of the applicator body.
3Measurement precision
If the piston advances by notches, then preset doses can be dispensed, but the user may accidentally advance by several notches causing over-dosing
Solution Approach 1:
The dosing mechanism is extracted from a complex multi-position piston system and simplified to a single-action cartridge system. Each cartridge is pre-loaded with exactly one dose, and the user simply presses a button to dispense that single predetermined amount, eliminating the possibility of over-dosing through multiple notch advancements.
Solution Approach 2:
The cartridge is pre-configured with the exact dose required, and the piston is pre-positioned to deliver only that amount. The system self-regulates the dosing without requiring the user to manipulate notches or positions, ensuring consistent single-dose delivery.
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 controlled, single-dose dispensing of sanitizing gel, reducing bulkiness and exposure risks while ensuring precise dosing and easy storage.
Implementation Method 1
an applicator (2) inside which a single dose of gel (20) can be accommodated and which is provided with a piston (3) conveniently sliding into the applicator (2) in order to dispense the single dose of gel (20)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A dispenser (1) of sanitizing gel for toilet bowls and the like, which comprises an applicator (2) and a piston (3) which is adapted to slide within the applicator (2); the applicator (2) is adapted to contain a single dose of sanitizing gel (20), which is adapted to be dispensed by the applicator (2) by way of the action of the piston (3), a closure plug (6; 12) being provided at the lower end of the applicator (2).