Dual Pump Dispenser with Metered Dosing and Mixing Chamber
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Solution Overview
Problem
Existing fluid dispensing devices are difficult to use, provide erratic fluid volume, require manual squeezing, and often leak, lacking control over dispensing amount and distribution, especially when multiple fluids need to be mixed or applied evenly.
Innovation Solution
A fluid dispensing device with multiple chambers, each equipped with its own metering mechanism and valves, allowing for controlled, metered dispensing of fluids from any point on the container, enabling simultaneous dispensing and mixing of different or same fluids, with adjustable dosing and applicator for even distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single one-way check valve is provided at the exit port of the flexible container, then leakage is reduced, but the valve becomes partially clogged over time requiring additional pressure to open, causing more fluid to be deposited than desired
Solution Approach 1:
The single check valve is segmented into two separate valves: a first one-way check valve at the exit port and a second one-way check valve at the outlet port. This segmentation allows each valve to perform its specific function independently, preventing clogging issues while maintaining reliable leakage prevention and dispensing control.
2Ease of operation
If spring-loaded buttons are used to open the exit port for gravity flow to applicator, then ease of operation is improved, but the device cannot deliver a substantially equal dose of fluid with each dispensing operation
Solution Approach 1:
The metering pump chambers are pre-filled with predetermined volumes of fluid before dispensing. The one-way check valves ensure that exactly the pre-measured volume is transferred from the storage chamber to the applicator, guaranteeing consistent dosing while maintaining ease of operation through simple button activation.
3Adaptability or versatility
If multiple fluid reservoirs are provided for storing different liquids, then versatility is improved, but device complexity increases
Solution Approach 1:
Multiple fluid reservoirs, metering pumps, and valve systems are merged into a single integrated dispensing device with a common outlet port. This combining approach maintains versatility for storing and dispensing multiple different fluids while managing device complexity through unified structural design and shared components.
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
Ensures predictable, controlled dispensing of a consistent fluid volume, independent of gravity, with the ability to mix or apply fluids evenly, addressing the limitations of prior art by providing a user-friendly and efficient dispensing solution.
Implementation Method 1
A first metered dosing pump is provided in fluid communication with the first fluid reservoir and is operable to transfer a portion of the first liquid from the first fluid reservoir to an output port
Implementation Method 2
A second metered dosing pump is provided in fluid communication with the second fluid reservoir and is also operable to transfer a portion of the second liquid from the second fluid reservoir to the output port
Implementation Method 3
A mixing chamber is provided at the output port in fluid communication with both the first and second metered dosing pumps for mixing the first and second liquids together
Data Source
Figure 1~3
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AI summary
A fluid dispenser (10) is provided that includes a multiple chamber fluid storage region (21, 23), each having a dispensing pump (26, 27) of its own such that the dispenser (10) can dispense the fluids (22, 24) from within the multiple fluid storage regions (21, 23). Further, the multiple fluid storage regions (21, 23) may each contain the same or different liquids (22, 24). The dispensing pumps (26, 27) include a metering housing (32), which when depressed, generate a one-way flow from the interior fluid storage region (21, 23) of the container that serves to fill the predetermined volume of the chamber within the metering housing (32). When the metering housing (32) is depressed a second time a substantially equal volume of each of the fluids (22, 24) is dispensed from the container, while upon release, the metering housings (32) are refilled by drawing fluids (22, 24).