Dispenser Protective Cap With Porous Insert and Torsion Spring
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Solution Overview
Problem
Existing dispensers for fluid media face issues with the protective cap becoming dirty due to fluid residues, losing its protective function as it acts more as a spray shield rather than effectively sealing the discharge opening.
Innovation Solution
A manually operable dispenser design featuring a soft, porous insert within the protective cap that, combined with a torsion spring, creates a wiping action when the cap is placed on the dispenser, ensuring the discharge opening is cleaned of media residues through a forced movement, simulating a wiping action to remove and absorb residues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective cap is used to cover the discharge opening, then the discharge opening is protected from contamination, but fluid residues accumulate on the cap's inner surface causing it to become dirty and lose its protective function
Solution Approach 1:
The patent applies preliminary action by equipping the protective cap with an insert that automatically wipes and absorbs fluid residues from the discharge opening surface when the cap is placed on the dispenser. This cleaning action occurs before the cap can become contaminated, maintaining its protective function throughout use.
Solution Approach 2:
The patent uses a porous insert material within the protective cap that absorbs fluid residues through capillary action. The porous structure provides large surface area and absorbency, enabling the insert to effectively capture and hold fluid residues, preventing them from contaminating the cap's protective surfaces.
2Reliability
If a soft porous insert is added to the protective cap, then fluid residues are absorbed and the protective function is improved, but the device complexity increases
Solution Approach 1:
The patent merges the protective function and cleaning function into a single integrated protective cap assembly. The insert is incorporated directly into the cap structure, combining protection and cleaning capabilities in one component rather than requiring separate cleaning mechanisms.
Solution Approach 2:
The protective cap with the insert performs self-cleaning through the wiping and absorbing action of the insert on fluid residues. The system serves itself by automatically removing contaminants during the normal capping operation, eliminating the need for external cleaning devices or procedures.
3Ease of operation
If a torsion spring is used to create a wiping movement, then media residues are effectively removed through friction, but the device complexity increases
Solution Approach 1:
The patent introduces dynamics by using a torsion spring to create rotational movement of the protective cap relative to the discharge opening. This dynamic wiping action, rather than static contact, enhances the effectiveness of fluid residue removal through friction during the capping operation.
Solution Approach 2:
The torsion spring mechanism performs the wiping action automatically as the protective cap is being placed on the dispenser. The cleaning operation occurs preliminarily during the normal capping motion, eliminating the need for separate manual wiping steps.
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
Effectively removes media residues from the discharge opening, improving the protective function of the cap and facilitating drying through ventilation openings, enhancing the dispenser's usability and hygiene.
Implementation Method 1
a torsion spring (11) clamped in the protective cap (7), having a free end (10) which introduces a torque under load
Implementation Method 2
a rod-shaped resilient element in the form of a torsion spring
Implementation Method 3
A soft, porous insert (8) is inserted into the protective cap (7) and can be pressed from above against the end (5) of the discharge section
Implementation Method 4
soft, porous liner absorbs media residue left at the discharge section end
Implementation Method 5
Drying of the insert can be improved if the protective cap has ventilation openings
Implementation Method 6
ventilation openings, preferably in the area of the protective cap that surrounds the insert
Data Source
AI summary
The invention relates to a dispenser for media that can be manually operated, having a storage container (1), a pump part (2) positioned on the storage container (1), said pump part comprising a neck-shaped discharge segment (3) having a dispenser segment end (5) provided with a dispenser opening (4), an actuating device (6) associated with the pump part (2), and having a protective cap (7) covering at least the dispenser segment end (5). A soft, porous insert (8) is inserted in the protective cap (7), which can be pressed from above against the dispenser segment end (5) when the protective cap (7) is put on, and the dispenser segment (3) forms a contact surface (9) for a free end (10) of a torsion spring (11) clamped in the protective cap (7), the straining of which initiates a torque, which rotates the protective cap (7) relative to the dispenser segment (3).