4. Fluid handling
  5. Self-proportioning or correlating systems
  6. Self-proportioning flow systems

Edmund F. Kelly

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Electrically controlled proportional valve

Valves and valve actuation – Electrically actuated valve – Having means to produce proportional flow
Reexamination Certificate

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Gas mixing apparatus for respirator

Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent

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Gas mixing apparatus for respirator

Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent

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Profile ID: LFUS-PAI-P-1192521

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