Rotatable Valve Cartridge Connector for Disposable Paste Dispensing
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Solution Overview
Problem
Existing discharge devices for flowable masses, driven by gas cartridges, are complex, expensive, and not suitable for disposable use, particularly for cartridges with different diameters, and lack a simple, inexpensive valve system for controlling gas flow.
Innovation Solution
A discharge device with a rotatable valve body and two cartridge connection pieces of different diameters, allowing for connection of various cartridges and featuring a simplified valve system with a position indicator, enabling easy handling and production with conventional plastics, suitable for single-use disposable items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex valve system is used to control gas flow, then the reliability of material discharge control is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the valve function from a complex mechanical system and integrates it directly into the cartridge connector structure. The connector itself acts as the valve mechanism, with its internal geometry controlling gas flow paths. This eliminates separate valve components while maintaining reliable control of material discharge.
Solution Approach 2:
The patent merges the valve function with the cartridge connector structure. The connector incorporates internal passages and sealing surfaces that perform both connection and flow control functions simultaneously, reducing the number of separate components while maintaining control reliability.
2Reliability
If a complex valve system is used to control gas flow, then the reliability of material discharge control is improved, but the manufacturing cost increases
Solution Approach 1:
The patent extracts the valve function from expensive separate components and integrates it into the cartridge connector structure. This allows the flow control function to be manufactured as part of the connector using conventional molding techniques, significantly reducing manufacturing cost while maintaining control reliability.
Solution Approach 2:
The patent designs the cartridge connector with integrated valve function to be disposable or easily replaceable. By incorporating the valve function into a low-cost connector rather than using expensive separate valve components, the system achieves reliable control at lower overall cost, suitable for single-use applications.
3Device complexity
If a single cartridge connector is used, then the device simplicity is improved, but the adaptability to different cartridge diameters deteriorates
Solution Approach 1:
The patent designs the cartridge connector with a universal interface that can accommodate cartridges of different diameters. The connector structure incorporates features that allow it to function with multiple cartridge types while maintaining a relatively simple overall design, achieving adaptability without proportionally increasing complexity.
4Reliability
If expensive valves are used, then the control precision of gas flow is improved, but the economic viability for disposable use deteriorates
Solution Approach 1:
The patent applies the disposable principle by integrating the valve function into a low-cost cartridge connector rather than using expensive separate valve components. This allows reliable gas flow control to be achieved at a cost level suitable for single-use applications, where the entire connector can be discarded after use.
Solution Approach 2:
The patent extracts the valve function from expensive mechanical components and implements it through the connector's internal geometry and sealing features. This approach achieves adequate control precision using inexpensive molded plastic features rather than costly valve mechanisms.
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 allows for efficient discharge of flowable masses from different cartridges using a simple, cost-effective design, suitable for disposable use, and can handle cartridges of varying diameters, improving economic viability and user operability.
Implementation Method 1
a pressurized gas can be directed to a first cartridge connection piece for connecting a cartridge, so that when a cartridge arranged in the cartridge connection piece is pressurized with the gas, the contents of the cartridge can be ejected
Data Source
Figure 1
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Figure 4
AI summary
The discharge device has a connector for supplying a gas stands under pressure, a base body (1), in which a passage and a channel run, through which the gas stand under pressure is conducted to a cartridge connection piece (6) for connecting a cartridge. Another cartridge connection piece (4) is arranged at front edge of the former cartridge connection piece with a greater cross-section and an opening (2).