Axially Movable Dispenser Head with Outer Passage
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Solution Overview
Problem
Dispensers for fluids, particularly in medical and dental environments, require frequent replacement to prevent infection and reduce cleaning efforts, leading to high consumption and increased material costs, while also needing to be user-friendly and environmentally sustainable.
Innovation Solution
A dispenser design featuring a container and axially movable head part with a passage along its outer surface, allowing for a simple two- or three-piece construction, enabling easy activation and fluid dispensing without internal passages, and allowing for single-use or reusable configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional multi-component dispenser designs are used, then functionality and reliability are improved, but manufacturing complexity and production time increase
Solution Approach 1:
The patent combines the head part and applicator into a single integrated component, reducing the number of separate parts. The head part includes an integrated passage structure that combines fluid delivery and sealing functions, eliminating the need for multiple internal passages and separate sealing components that would otherwise be required in traditional designs.
Solution Approach 2:
The head part serves multiple functions simultaneously: it provides the fluid passage, contains the sealing surface, and integrates the applicator mounting. This multi-functional design reduces component count while maintaining the reliability needed for medical and dental applications.
2Object-affected harmful factors
If frequent dispenser replacement is implemented, then infection prevention and cleaning reduction are improved, but material consumption and production costs increase
Solution Approach 1:
The patent designs a disposable dispenser system where the entire unit (container with integrated head part and applicator) can be discarded after single use. This eliminates infection risk between patients and reduces cleaning requirements, while the integrated design keeps production costs and material consumption manageable through simplified manufacturing.
3Ease of manufacture
If simple two-piece or three-piece construction is used, then manufacturing cost and production time are reduced, but sealing reliability and fluid containment may worsen
Solution Approach 1:
The patent applies sealing elements at specific critical locations where fluid containment is most important. The head part includes a sealing surface that interfaces with the container opening, providing reliable sealing with minimal components. This localized sealing approach maintains reliability while keeping the overall design simple for efficient manufacturing.
Data Source
AI summary
A dispenser includes a container, an applicator and a head part. The head part has the applicator, and is axially moveable relative to an outlet of the container. The head part includes a passage connected to the applicator in a fluid conducting manner, the passage further being connected to the container in a fluid conducting manner in an activated state of the dispenser and with no fluid communication being possible in a storage state of the dispenser. The passage extends along an outer circumferential surface of the head part, the head part having a base with a seal configured to seal with respect to the outlet of the container in the storage state of the dispenser.