Baby Bottle Nipple Conical Opening and Leak Prevention
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Solution Overview
Problem
Existing baby bottle nipples suffer from accidental liquid release when tipped or dropped, and leakage when not in use, posing a choking hazard.
Innovation Solution
A baby bottle nipple design featuring a conical wall structure with a vent hole and a method to form a leak-resistant opening by minimizing burrs and roughness on the cutting surface, using compression or stretching to prevent deformation during cutting, resulting in a firmer seal and reduced leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional opening is formed in the nipple, then the nipple allows liquid flow during feeding, but liquid leaks accidentally when the bottle is tipped or dropped
Solution Approach 1:
The opening is formed with a specific conical geometry and controlled burr configuration at its perimeter, creating localized structural variations that enable selective liquid flow. The conical shape with oriented burrs allows liquid to pass during feeding while preventing accidental leakage when the bottle is tipped or dropped.
Solution Approach 2:
The opening is designed with a conical geometry rather than a flat or circular shape, creating a three-dimensional structure that utilizes surface curvature to control liquid flow. The conical form with angled burrs provides a mechanical advantage in directing liquid flow during feeding while resisting accidental leakage.
2Productivity
If the opening is cut with conventional methods, then the opening is formed quickly, but burrs and roughness are created on the cutting surface leading to leakage
Solution Approach 1:
The nipple wall is pre-compressed or pre-stretched in the desired final configuration before the opening is formed. This preliminary action prepares the material to maintain its shape during cutting, preventing deformation and burr formation while allowing for a clean, precise opening that maintains surface smoothness.
Solution Approach 2:
The physical state of the nipple material is changed through compression or stretching before opening formation. By altering the material's mechanical properties in this preliminary step, the subsequent cutting process produces a cleaner opening with fewer burrs and roughness, improving both surface smoothness and structural integrity.
3Manufacturing precision
If the nipple wall is compressed or stretched during opening formation, then deformation is prevented and seal quality improves, but the manufacturing process becomes more complex
Solution Approach 1:
The compression or stretching of the nipple wall is performed as a preliminary step before opening formation. This preliminary action simplifies the subsequent cutting process by preparing the material in its final configuration, reducing the need for complex adjustments during opening formation and improving overall manufacturing efficiency.
Data Source
AI summary
A method of forming a nipple for a baby bottle, comprises: forming a lower conical wall section; forming a higher conical wall section molded above the lower conical wall section; preventing deformation of the higher conical wall section; and cutting an opening through the higher conical wall section into an interior section of the nipple.