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Circuit for phase section control of an AC-DC motor

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Commutator motor control system

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Reexamination Certificate

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Commutator motor useful for driving automatic washers

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Control system and method for controlling a DC motor or generato

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Coupled RFI choke as stall detection means for brush type DC...

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Reexamination Certificate

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Device for regulating rotary speed of an alternating current ele

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Electric motor for portable machine tools

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Electric screwdriver

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Electric two-motor drive

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
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Electronic control and regulating system

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Four quadrant motor operation using DC bus current sensing

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Reexamination Certificate

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Governor circuit for universal series (or compound) motor

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Method and apparatus for controlling brushless DC motors in...

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Reexamination Certificate

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Method and apparatus for temperature monitoring of universal or

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Motor braking arrangement and method

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Motor control system, particularly to reduce idling speed

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Odd harmonics reduction of phase angle controlled loads

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Reexamination Certificate

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Phase controller for intermittently supplying an AC motor with e

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Printing mechanism having a direct current motor with imbalanced

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
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Rotary speed control circuit for feeding a dc universal motor

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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