4. Valves and valve actuation
  5. Electrically actuated valve
  6. Remote or follow-up control system for electrical actuator

Elmer A. Carlson

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Direct spark ignition system utilizing gated oscillator

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Heating system

Combustion – Timer – programmer – retarder or condition responsive control – Of igniter and feed controlled sequence
Patent

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Ignition system and components thereof

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Ignition system and components thereof

Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator
Patent

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Night set-back thermostat

Automatic temperature and humidity regulation – With timing element – Timer other than clock
Patent

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Profile ID: LFUS-PAI-P-1085457

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