Self-Sealing Stamping Device Airtight Inkpad Seal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stamping devices fail to maintain an airtight seal with non-alcohol based inks, leading to ink evaporation and reduced usability, especially when used by small children.
Innovation Solution
A self-sealing stamping device with an applicator and inkpad housing forming an airtight bond, utilizing raised features and sealing mechanisms to enclose the inkpad within an airtight chamber, allowing for rotatable actuation between closed and stamping positions, suitable for non-alcohol based, water-based, and washable inks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional stamping devices are used with non-alcohol based inks, then the device structure remains simple, but ink evaporation occurs leading to reduced inkpad lifespan
Solution Approach 1:
The patent employs a flexible membrane or seal between the applicator and inkpad housing that forms an airtight barrier. This flexible film prevents ink evaporation while maintaining device simplicity, resolving the contradiction between extending inkpad lifespan and avoiding increased structural complexity
Solution Approach 2:
The stamping device is divided into distinct sealed compartments (inkpad chamber and applicator chamber) separated by an airtight barrier. This segmentation allows the inkpad to be enclosed and protected from evaporation without requiring complete redesign of the entire device structure
2Reliability
If an airtight seal is formed between applicator and inkpad housing, then ink evaporation is prevented, but the mechanism for rotatable actuation becomes more complex
Solution Approach 1:
The seal between applicator and inkpad housing is designed to be dynamic rather than static, allowing it to maintain contact and airtight integrity during rotation. The flexible membrane accommodates movement while preserving seal integrity, enabling reliable operation without complex mechanical sealing systems
Solution Approach 2:
The flexible seal automatically maintains contact between the applicator and inkpad housing during actuation through elastic recovery or spring pressure, eliminating the need for additional complex mechanisms to ensure seal integrity during rotation
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 self-sealing mechanism extends the lifespan of the inkpad by maintaining an airtight seal, preventing ink evaporation and ensuring consistent ink availability for multiple uses, making it suitable for children's use.
Implementation Method 1
The contact surfaces between the applicator and the inkpad housing provide an airtight seal, thereby enclosing the inkpad within an airtight chamber
Data Source
AI summary
A self-sealing stamping device suitable for use with non-alcohol based inks is described. The stamping device includes an applicator that has raised features for providing a stamped design. The applicator also includes sealing features that mate with sealing features on an inkpad housing to provide one or more airtight seals therebetween. The inkpad housing provides an enclosure for an inkpad with one or more apertures. Sealing features are provided circumscribing the apertures for mating with sealing features of the applicator. In a closed position, the stamping device provides an airtight enclosure for the inkpad comprised of the inkpad housing and the applicator.