4. Pumps
  5. Condition responsive control of pump drive motor
  6. Responsive to change in rate of pump fluid flow

Donald G. Clark

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Apparatus for assembling an electrical connector to a cable

Metal working – Plural diverse manufacturing apparatus including means for... – Separate tool stations for selective or successive operation...
Patent

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Apparatus for inspecting flat glass

Optics: measuring and testing – By monitoring of webs or thread – For flaws or imperfections
Patent

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Chemical dosimeter having a constant flow air sampling pump

Pumps – Condition responsive control of pump drive motor – Responsive to change in rate of pump fluid flow
Patent

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Dosimeter for monitoring working areas

Measuring and testing – Gas analysis – Solid content of gas
Patent

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