Pasty Product Dispensing Device with Sealing Plug and Elastic Pump
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Solution Overview
Problem
Existing devices for protecting and dispensing pasty or creamy products are complex, expensive, bulky, and prone to contamination due to air exposure and complex design, which complicates recycling and increases material costs.
Innovation Solution
A compact, economical device with a simplified design featuring a reservoir with a longitudinally movable sealing plug and an elastically deformable pump body, eliminating external cavities and valves to prevent contamination, and allowing for easy recycling using mono-materials like polypropylene or polyethylene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pump subassembly with sealed valves and multiple components is used, then the product outlet is sealed, but the device complexity increases significantly
Solution Approach 1:
The patent removes the complex pump subassembly with sealed valves and extracts only the essential pumping function, replacing it with a simple chamber and plug system that achieves the same product outlet sealing without the complexity of multiple components
Solution Approach 2:
The patent merges the reservoir and pump body into a single integrated structure, eliminating the need for separate pump subassembly components and simplifying the overall device while maintaining product outlet sealing functionality
2Reliability
If a flexible bag reservoir with pump subassembly is used, then the product is protected from air, but the device becomes bulky and expensive
Solution Approach 1:
The patent merges the reservoir and pump body into a single integrated structure, reducing the overall device volume while maintaining airtight product protection, eliminating the need for separate flexible bag and pump subassembly components
3Reliability
If multiple materials such as plastics and metals are used in the pump subassembly, then the sealing function is achieved, but the recycling cost increases and becomes sometimes impossible
Solution Approach 1:
The patent uses homogeneous materials throughout the device structure, eliminating mixed materials like metals and plastics, which enables easy recycling while maintaining the sealing function through the simplified plug and chamber design
4Reliability
If a complex design with many components is used, then the product outlet is sealed, but the manufacturing implementation investment increases significantly
Solution Approach 1:
The patent removes complex components like sealed valves and pump subassemblies, retaining only the essential sealing function through a simplified plug and chamber system, significantly reducing manufacturing implementation investment
Solution Approach 2:
The patent merges multiple components into integrated structures, reducing the number of parts and assembly steps, which lowers manufacturing implementation costs while maintaining product outlet sealing reliability
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 device ensures airtight protection, reduces material and manufacturing costs, and facilitates recycling while maintaining high reliability and ease of use, minimizing weight and transport costs.
Implementation Method 1
constrained in the closed position by a spring element which cooperates in compression
Implementation Method 2
The pump body is formed of an elastically deformable upper membrane providing a pump function
Data Source
AI summary
A sealed device (1) for protecting and dispensing pasty or creamy products (7), includes a reservoir (2) containing the product (7) and suitable for receiving, at the bottom end thereof, a longitudinally movable sealing plug (3). The reservoir (2) is longitudinally movable like a piston in a pump body (4) and it is forced into the closed position by a spring element (5) that cooperates in compression with a lateral outer projection (2e) of the reservoir (2) and with the top of the side wall (6b) of the base (6) attached to the pump body (4). The pump body (4) includes an elastically deformable upper membrane (4a) providing a pump function and also includes, on an upper lateral wall thereof (4c), a lateral opening (4e) for dispensing the product (7). The assembled reservoir (2) and pump body (4) form a system suitable for circulating the product (7) via a compression chamber (C) supplied from the reservoir (2) by at least one upper inlet orifice (2b). The device is particularly suitable for the hygiene, pharmacy and cosmetics fields.