Venturi Ball Joint Connector for Aerated Shower Flow

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Solution Overview

Problem

Conventional showerheads with restricted flow rates lead to a perceived lack of forcefulness, and existing aerating systems either disrupt aesthetics, increase complexity, or result in water leakage and noise when integrated with ball joints.

Innovation Solution

A ball joint connector with a housing featuring an axial passageway forming a venturi and a radially extending air inlet port, equipped with a check valve or sleeve insert to induce air into the water stream while preventing reverse flow and noise, allowing for retrofitted aeration of existing showerheads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If flow rate is restricted for water conservation, then water waste is reduced, but the perceived forcefulness of the shower decreases

Engineering Contradiction:
Improvewater wasteVSAvoidperceived forcefulness
Core Design Contradiction:
Loss of substanceVSForce

Solution Approach 1:

The patent applies pneumatic principles by introducing air into the water stream through a venturi-induced vacuum effect. The venturi passage creates a pressure differential that draws air through a radial inlet port, mixing air bubbles with water to increase volume and perceived force while maintaining restricted flow rate for conservation

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Quantity of substance

If an aeration system is integrated with the showerhead or faucet spout, then water volume appears more bulky, but aesthetics are disrupted and manufacturing complexity increases

Engineering Contradiction:
Improvewater volume appearanceVSAvoidmanufacturing complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent extracts the aeration function from the showerhead assembly and relocates it to a separate ball joint component. This allows the aeration mechanism (venturi passage, radial inlet, check valve) to be manufactured independently and attached to existing showerheads, reducing overall system complexity while maintaining the aerated water effect

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If a radial air inlet is placed at the ball joint with a venturi passage, then air is induced into the water flow, but water may leak back out the air inlet creating noise and spray

Engineering Contradiction:
Improveair induction capabilityVSAvoidwater leakage and noise
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a check valve as an intermediary component within the radial air inlet port. This check valve permits air to flow into the water stream through the venturi-induced vacuum effect while preventing reverse flow of water back through the air inlet, thereby eliminating water leakage and associated noise and spray problems

Inventive Principle:
Principle #24Intermediary (Mediator)

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 aerated water without leakage or noise, enabling retrofitting of millions of existing showerheads with improved aesthetics and functionality at a standard cost, while reducing noise and water waste.

Implementation Method 1

as water passes through a throat of the venturi, the water velocity increases and the pressure decreases. The resulting negative pressure draws in ambient air through the radial inlet

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Implementation Method 2

the insert is in the form of a check valve that permits air flow through the inlet port into the passageway, but restricts reverse flow from the passageway through the inlet port

Methodology Applied
Scientific EffectCheck valve one-way flow: Valve

Data Source

PatentUS9061294B2Joint connector
Publication Date: 2015.06.23 KOHLER CO(US)
  • US9061294B2 patent drawing
  • US9061294B2 patent drawing
  • US9061294B2 patent drawing

AI summary

A ball joint connector is provided for linking a showerhead to a water supply pipe. The connector has an internal venturi that draws air into the connector to aerate water being provided to the showerhead. A flow control member is disposed in a fluid pathway connected to the venturi, preventing spraying or leaking out the air inlet, while reducing noise associated with the air induction.