Inventions Thanksgiving 2019

1.  Improved Oxygen-Saturation/Pulse-Rate finger meter.  Digital read-out makes audible tick accompanying each registered beat above half average strength.  Responding to a button-press shows a plot of last minute of pulse heights against time.  This improvement would allow user to identify arrhythmias.

2.  Electro-mechanical back scratcher that can be guided by remote or wired controller and optionally can automatically cover the back area systematically like iRobot Roomba, but able to return later to user-identified areas needing additional scratching, perhaps identified by a signal input as scratcher leaves each such areas.  This would be a great benefit for people with weak or painful joints from shoulders to fingers inclusively.  Further consideration led me to drop the iRobot idea, but to cotinue the powered scratch idea.  This was submitted for patent in the autumn of 2021:

In the same autumn, I submitted patent applications for Semi-Truck Jackknife Blocker:

and Semi-Truck Anti-Jackknife System

3.  To be continued.