4. Pumps
  5. Condition responsive control of pump drive motor
  6. Responsive to accumulation of pumped liquid in receiver

Kenneth P. Frey

Inventor

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Sewage pump

Machines not elsewhere specified – Pump or compressor
Design Patent

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Strain relief device for sump pump alarm

Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Reexamination Certificate

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Sump pump alarm

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

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Sump pump alarm enclosure and connector

Electrical connectors – With stress relieving means for conductor to terminal joint – Conductor gripped by or entirely within connector housing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2438633

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