Dispensing Cap With Integrated Additive Chamber and Plunger
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Solution Overview
Problem
Existing container lids are limited in their capacity to hold multiple additive substances and are impractical for efficient manufacturing, lacking a suitable design for efficient dispensing of additives into solvent fluids.
Innovation Solution
A cylindrically-shaped dispensing cap with a diaphragm and plunger mechanism that integrates a chamber for holding additives, featuring a chamber closure member with stress-relieving depressions to facilitate sealing and unsealing, allowing for efficient dispensing into containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing container lid designs are used, then manufacturing simplicity is maintained, but the capacity to hold multiple additive substances and dispensing efficiency are limited
Solution Approach 1:
The lid is divided into distinct functional segments: a body portion, an inner wall forming a chamber, a plunger mechanism, and a chamber closure member. This segmentation allows each component to perform its specific function while collectively enabling the lid to hold and dispense multiple additive substances efficiently.
Solution Approach 2:
The chamber closure member is nested within the chamber formed by the inner wall, and the plunger is nested within the chamber as well. The chamber itself is nested within the body portion of the lid. This nested configuration maximizes the use of internal space to hold additive substances while maintaining a compact overall structure.
2Reliability
If a chamber closure member with sealing surfaces is used, then sealing reliability is improved, but the difficulty of unsealing increases
Solution Approach 1:
The chamber closure member incorporates a flexible diaphragm that can be pressed to deform and break the seal between the closure member's sealing surface and the inner wall's sealing surface. This flexibility allows the seal to be reliably formed during storage while enabling easy unsealing when the diaphragm is pressed, allowing the additive to dispense.
3Ease of operation
If stress-relieving depressions are added to the chamber closure member, then ease of unsealing is improved, but manufacturing complexity increases
Solution Approach 1:
The chamber closure member includes stress-relieving depressions that modify the structural parameters of the closure member. These depressions create predetermined weak points that concentrate stress during the unsealing process, allowing the seal to be broken more easily when the diaphragm is pressed. The depressions are formed as integral features during molding, adding minimal manufacturing complexity while significantly improving unsealing ease.
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
Enables efficient and cost-effective dispensing of additives into containers, providing a scalable solution for various container sizes and types, ensuring a secure seal and easy activation for mixing with solvent fluids.
Implementation Method 1
A plunger axially extends from the diaphragm portion towards the opening of the chamber, wherein the diaphragm and the plunger have a closed position and an open position
Implementation Method 2
the one or more stress-relieving depressions enable the chamber closure member to elastically collapse and facilitate unsealing of the chamber closure member from the inner wall
Data Source
AI summary
A dispensing cap for a container includes a body portion and an integrally formed chamber for holding an additive substance. An inner wall integrally formed with the body portion defines the chamber whose open end is sealed by a chamber closure member. The chamber closure member being configured for cooperating with the inner wall and seal the chamber, wherein the body portion, the closed top end, the plunger, and the inner wall are integrally formed.