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Bourdon Tube Investigation

Industry experts contacted indicated that the volume of a Bourdon tube does not change while flexing or they had no data on this consideration. If the industry consensus is true, work output can exceed work input (Wout ˃ Win) as per an APS experiment.

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Letter of support

David Strain’s invention demonstrated an efficiency advantage greater than 15°/o favoring the diamondshaped
actuator over a conventional actuator.

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Questions?
150 Years of Actuators in One Room
From an 1874 patent to David Strain's latest designs — this video puts them all in motion. Watch the fluid flow through each one. Understand how mechanical advantage actually builds.
  • Patented Invention, videos
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A Peer Reviewer Said It. The Fluid Flow Proves It.
An independent review concluded the Diamond-Shaped Actuator has real potential to help mitigate climate change. This video shows exactly why — walking through the fluid flow at each stage of
  • Patented Invention, videos
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Meet the Actuator That Rewrote the Equation
Side by side with a conventional piston. International patents on the table. Experimental evidence on the screen. This is the Diamond-Shaped Actuator — and this is the science behind why
  • Patented Invention, videos
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The Inventor Answers Back
You watched the videos. You had questions. David Strain — the inventor behind an internationally patented climate change solution — sits down to answer the ones that came up most.
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The Heating Myth That’s Been Costing You All Night
Conventional wisdom said turning down the heat at night would cost more to recover in the morning than it ever saved. Conventional wisdom was wrong. A real-world case study proved
  • HVAC, videos
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The Cure That May Have Made Things Worse
Some HVAC measures mandated for COVID and Legionnaires' disease may have increased the very risks they were designed to prevent. The evidence didn't always support the mandate. This video examines
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The Retrofit That Made Things Worse
Induction units were already not winning any efficiency awards. Then came the BAS upgrades — and two mistakes that made a flawed system perform even worse. We found them in
  • HVAC, videos
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Your Boiler Has Been Taking Orders From the Wrong Boss
Traditional hot water reset follows the weather. APS conservation logic follows the building. One looks outside. The other pays attention to what's actually happening inside. The difference? Heating energy cuts
  • HVAC, videos
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