Reusable Spray Dispenser Fixture With Vacuum Relief and Leak Latch
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Solution Overview
Problem
Existing liquid dispensing systems for pest control compositions, such as insecticides and herbicides, face challenges in efficient dispensing and user safety, including accidental activation and leakage, as well as inefficiencies in vacuum relief and product delivery.
Innovation Solution
A liquid dispensing system featuring a reusable dispensing fixture and spray dispenser with a vacuum relief system, secure latching mechanism, and ergonomic design, including a trigger spray dispenser connected via a flexible outflow tube, ensuring easy handling and minimizing contact with the liquid product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a hand-operated air pump and check valve system is used to pressurize the vessel, then liquid can be forced under pressure through the dip tube and dispensing system, but the system becomes complex and requires manual operation that may lead to accidental activation
Solution Approach 1:
The patent replaces the manual air pump and check valve system with a spring-loaded piston mechanism integrated into the dispensing fixture. This mechanical substitution eliminates the need for separate pressurization components while maintaining the ability to generate liquid delivery pressure through a simpler, more integrated design.
Solution Approach 2:
The patent combines the pressurization function with the dispensing fixture by integrating a spring-loaded piston directly into the fixture structure. This merging of functions reduces the overall system complexity by eliminating separate pressurization components and their associated control mechanisms.
2Quantity of substance
If a dip tube extends to the bottom of the vessel interior, then liquid can be drawn from the bottom of the container, but the long tube creates resistance and inefficiency in liquid flow
Solution Approach 1:
The patent extracts the dip tube from the system entirely, replacing it with a port in the dispensing fixture that opens directly into the vessel interior. This elimination of the long tube removes the flow resistance it creates while still allowing complete liquid extraction through direct access to the vessel bottom.
Solution Approach 2:
The patent segments the liquid delivery path by creating a direct opening from the fixture port to the vessel interior, eliminating the continuous long tube pathway. This segmentation approach allows liquid to be drawn directly from the bottom without traversing a lengthy tube, improving flow efficiency.
3Measurement precision
If a rigid spray tube is used in the dispensing wand, then the nozzle can be positioned precisely, but the system lacks flexibility and ease of handling
Solution Approach 1:
The patent replaces the rigid spray tube with a flexible hose that connects the dispensing fixture to the wand. This flexible conduit maintains nozzle positioning accuracy while providing the system with the flexibility and ease of handling required for convenient operation and storage.
4Reliability
If the dispensing fixture is permanently attached to the vessel, then the system is stable, but the fixture cannot be reused with different vessels
Solution Approach 1:
The patent employs a dynamic attachment system where the dispensing fixture can be securely latched to a vessel during use for stable operation, but can also be easily released and reattached to different vessels. This dynamic design provides both connection stability during dispensing and versatility for reuse with multiple containers.
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 system provides efficient, safe, and user-friendly dispensing of liquid compositions, preventing accidental activation and leakage, while ensuring effective vacuum relief and prolonged operation, enhancing user convenience and product delivery efficiency.
Implementation Method 1
a spring-loaded piston configured to move between a first position, in which the piston blocks the opening to provide a vacuum-tight seal, and a second position, in which the piston allows communication between the vessel interior and the atmosphere
Implementation Method 2
The liquid dispensing system includes a check valve in fluid communication with the vessel interior and configured to allow air to enter the vessel interior to equalize pressure
Implementation Method 3
a pump configured to draw liquid from the vessel and deliver the liquid to the dispensing fixture
Data Source
AI summary
The present disclosure relates generally to liquid dispensing systems and more specifically to liquid dispensing systems having a reusable dispensing fixture and a reusable spray dispenser.