Rotating Dosing Cap With Piston for Accurate Fixed-Volume Dispensing
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Solution Overview
Problem
Conventional containers often dispense incorrect doses of contents, leading to waste and misuse, and customized containers are bulky and expensive.
Innovation Solution
A dosing device with a dosing cap that includes a rotatable outer portion and a piston mechanism, allowing for a 180° operational cycle to consistently dispense a predetermined amount of contents, compatible with standard containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If customized containers are designed to dispense exact predetermined amounts, then dosing accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The dosing cap is divided into separate functional components: an outer portion with protrusions and recesses for rotation, an inner portion with a piston, and a skirt with high and low portions. This segmentation allows each component to perform a specific function while maintaining overall simplicity and compatibility with stock containers.
Solution Approach 2:
The skirt acts as an intermediary element between the outer portion and the inner portion, translating rotational motion into vertical piston movement. The high and low portions of the skirt engage with the protrusions and recesses to control the filling and dispensing cycles without requiring complex mechanisms.
2Ease of manufacture
If stock containers are used, then manufacturing cost is reduced, but dosing accuracy deteriorates
Solution Approach 1:
The dosing cap is designed with universal compatibility to fit standard stock containers while providing precise dosing functionality. The outer portion can rotate to engage with the container's rim, and the piston mechanism dispenses exact amounts regardless of the specific container used, making the system universally applicable.
Solution Approach 2:
The dosing cap performs self-regulation through its mechanical design. As the outer portion rotates, the skirt's high and low portions automatically control the piston's vertical movement, ensuring precise dosing without requiring external control mechanisms or complex electronics.
3Device complexity
If conventional containers are used, then device simplicity is maintained, but dosing accuracy and reliability worsen
Solution Approach 1:
The dosing cap introduces dynamic elements to the static container structure. The outer portion rotates during operation, and the piston moves vertically in response to the skirt's profile. This dynamic mechanism ensures reliable dosing while maintaining the overall simplicity of the container system.
Solution Approach 2:
The dosing mechanism operates through periodic rotation of the outer portion, creating alternating filling and dispensing cycles. Each 180° rotation completes one full cycle, ensuring consistent and reliable dosing with every operation while maintaining a simple mechanical structure.
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 consistent and accurate dosing of contents, preventing waste and misuse, while being cost-effective and adaptable to various containers.
Implementation Method 1
a piston provided within the interior wall of the inner portion, wherein a bottom surface of the piston is provided on top of the bottom surface of the inner portion
Implementation Method 2
the outer portion is rotated during an operational cycle from an initial position, to an extended position, and back to the initial position to dispense contents from the container
Implementation Method 3
the rotation of the outer portion from the initial position to the extended position constitutes a filling portion of the operational cycle and the rotation of the outer portion from the extended position back to the initial position constitutes a dispensing portion of the operational cycle
Data Source
AI summary
The present invention relates to a dosing device comprising: a container; and a dosing cap comprising: an inner portion provided over the container, wherein the inner portion includes an interior wall, an exterior wall, and a bottom surface; a piston, wherein a bottom surface of the piston is provided on top of the bottom surface of the inner portion; a skirt provided on an outer surface of the inner portion, wherein a top surface of the skirt comprises one or more high portions and one or more low portions; an outer portion rotatably coupled with the outer surface of the inner portion, wherein a bottom surface of the outer portion comprises one or more protrusions and one or more recesses, and wherein the outer portion is provided above the skirt along a vertical axis; and a head comprising an applicator surface and at least one orifice.