Inline Shower Dispenser with Hydraulic Piston
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Solution Overview
Problem
Existing dispensing devices for aromatic liquids in shower environments suffer from inconsistent dispense rates due to reliance on water supply pressure, leading to variable user experiences.
Innovation Solution
An inline shower device with a hydraulic chamber and fluid-driven piston, coupled with a detachable capsule, ensures consistent fluid delivery by controlling the piston's position within the chamber, allowing for adjustable dispensing of aromatic liquids into the water stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the dispensing device relies on water supply pressure to dispense aromatic liquid, then the device structure is simple, but the dispense rate becomes inconsistent and variable
Solution Approach 1:
The patent applies hydraulic principles by using water pressure from the shower system to drive a piston within a dispensing mechanism. The piston moves in response to water pressure fluctuations, consistently dispensing aromatic liquid through a controlled opening regardless of supply pressure variations. This hydraulic approach transforms variable water pressure into reliable, consistent dispense rates.
Solution Approach 2:
The patent changes the operational parameter from direct pressure-dependent dispensing to pressure-driven piston movement with a fixed discharge opening. By maintaining a constant opening size and using the piston as an intermediary, the system decouples the dispense rate from supply pressure variations, achieving parameter stability despite input fluctuations.
2Reliability
If the dispensing device uses a fixed opening for liquid release, then the dispense rate is consistent, but the device cannot adapt to different user preferences
Solution Approach 1:
The patent incorporates a rotatable element with varying opening configurations that can be adjusted by the user. This dynamic component allows the user to select different opening sizes or patterns while the piston mechanism maintains consistent flow control. The system combines fixed hydraulic control with adjustable geometric configuration to achieve both consistency and adaptability.
3Reliability
If the capsule is permanently attached to the housing, then the fluid connection is reliable, but the capsule cannot be replaced or refilled
Solution Approach 1:
The patent divides the dispensing system into separable components: a reusable housing containing the piston mechanism and replaceable capsules containing aromatic liquid. The capsule interfaces with the housing through standardized connection elements that ensure reliable fluid sealing when attached, yet allow easy removal and replacement. This segmentation enables both operational reliability during use and user convenience for maintenance.
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 solution provides a consistent and controlled dispensing of aromatic liquids, enhancing the bathing experience by decoupling fluid delivery from water supply pressure fluctuations.
Implementation Method 1
a fluid-driven piston... configured to dispense a fluid from the capsule into the outlet port
Data Source
AI summary
A capsule includes an upper body portion and a lower body portion that is coupled to the upper body portion. The lower body portion includes a lower wall that defines a lower opening. The lower body portion and the upper body portion together define an internal cavity. At least one of the upper body portion or the lower body portion includes a plurality of grooves spaced at intervals along a circumferential direction with respect to a central axis of the capsule. The plurality of grooves extends at an angle in a partially axial direction and a partially circumferential direction.