This document is the property of Strix Ltd and the information contained is CONFIDENTIALThe drawings and information may not be reproduced or used without the prior written consent of Strix Ltd

The designs and concepts herein are patent and copyright protected

Presented byAnand Patel

2013-09-11

Summer Projects:

•Tommee Tippee Perfect Prep™ machine MK 2

•Strix Steamer Blender

ContentsPart 1Tommee Tippee Perfect Prep™ machine MK 2:Part 2Strix Steamer Steamer Blender:

- Background/introduction/objective- Methods- Results- Conclusion of project

- Strix revelations (What I have learnt)

Project 1:Tommee Tippee Perfect PrepTM Machine MK 2

Objective: Find a mechanical way to dissolve the baby powder...

and make it take off somehow!

≈

Problem at handFinding a mechanical way to dissolve the powder

Is it as simple as one may think? NO!

Powder added to water Water added to powder

Beaker, tap water temperature

Background

‘Baby evolution’66% of customers gave a 5

star rating on Amazon

Therefore the Perfect PrepTM machine is good, but not perfect!

Methods

Investigate the effects of:• Temperature• Flow rate• Installation of mechanical parts• Shape of pod

TemperatureHigher tank temperaturesDisconnect thermostatAdd hot waterVary the temperature and determine how well the powder dissolves

Thermometer is set to read at room temperature and therefore any temperature can be tested

Temperature (°C) Percentage Mixed

50 60

60 75

70 89

80 97

I tested from a temperature range of 50-80 degrees Celsius with a composition of an 8Oz (33.6g) cycle of water, supplying 4Oz (16.8g) of baby powder,Table showing the effect of temperature on mixing the baby powder- the baby milk was dispensed in a bottle (Not in test pod)Table showing the effect of temperature on mixing the baby powder- the baby milk was dispensed in a bottle (Not in test pod)Table showing the effect of temperature on mixing the baby powder- the baby milk was dispensed in a bottle (Not in test pod)

The effect of temperature on mixing the baby powder- the baby milk was dispensed in a bottle (Not in test pod) 

Flow Rate

An extra pump has been installed parallel

Flow regulators are doubled and in parallel

Boost flow rateTurn up PRV (Pressure relief valve)Use a second pumpTwo parallel flow regulators and pumps 

0.6mm Jet

Jet demo test video

Closer look at the jet test – does it lift up powder?

Jet in from side of cup.wmv

Structure of the pod

Beaker:•Flat base•Easier settlement•Hard to uplift and move the powder

Cone:•Converging shape•Encourages circular flow•Vortex effect•Easier to lift the powder and make it dissolve

Mechanical proposals- using a whisk

Beaker Conical Funnel

Adding the ‘water to powder’ at tap water temperature

Adding the ‘water to powder’ at 30°C

Results table:

Conclusion of project

Temperature Increase Flow rate Structure Mechanical agitation

Technical solutions have been found:

Mechanical agitationStructure (cone)

INVESTIGATED OPTIONS

SOLUTIONS IDENTIFIED

Meanwhile in Bermuda……

Project 2:Strix Steamer Blender

Objective:• Develop a competitive Steamer Blender

So that it retains more nutrients

BackgroundWhat is a steamer blender?• Steams vegetables/meat

and blends it!• Method to prepare baby

food• Alternative to buying

premade baby food in supermarkets

• For babies between 3-12 months

Tommee Tippee ruling the baby market?

Method• Nutrient research• Understanding the

chemistry of the reaction• Making a Vitamin C

titration test• Create reliable and

reproducible results

Nutrient researchAnalysing vitamins

Vitamin Chemical structureSoluble in

waterStability

Boiling Point (°C)

A NoFairly stable, changes with

heat 181

B12 Yes Stable >300

C Yes

Very unstable:

oxidizes in air and water,

heat sensitive

553

E No Stable 210

Most favourable vitamin to

test, due to its

instability!

Understanding the reaction

Broccoli has lots of vitamin C

The enzyme governs this reaction

Creating the Vitamin C test

Performing a titration:

Definition:  Quantitative chemical analysis that is used to determine the

unknown concentration of a solution.......Wiki

• Green colour when Vitamin C is still present

• Blue colour when all Vitamin C has reacted

• At the precise moment the sample permanently changes colour, we are able to know the amount of Vitamin C in the sample

• Video demonstration: VIDEO0016.3gp

Results of testing

End result: Strix steamer blender retains the most Vitamin C and therefore holds more nutrients

Practical value

Problem solving

Getting stuck in

To apply what I have learnt outside of Strix

Strix revelations- What I have learnt

Thank you all for listening