4. Pumps
  5. Expansible chamber type
  6. Plural pumping chambers

E. Dale Hartley

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Bilge pump

Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent

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Diaphragm pump with ball bearing drive

Pumps – Three or more cylinders arranged in parallel – radial – or...
Patent

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Double diaphragm pump

Pumps – Expansible chamber type – Plural pumping chambers
Patent

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Electromagnetic actuator having preloaded spring means

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent

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Liquid dispensing system and automatic selector therefor

Dispensing – Automatic control
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Profile ID: LFUS-PAI-P-13843

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