Robert K. Schaefer

Examiner

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AC switch with cantelever contact and balance springs

Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent

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Adaptive control circuit for a stepping motor

Electricity: motive power systems – Positional servo systems – Adaptive or optimizing systems including 'bang-bang' servos
Patent

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Adaptive control system for numerically controlled machine tools

Electricity: motive power systems – Positional servo systems – Adaptive or optimizing systems including 'bang-bang' servos
Patent

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Adjustable speed electric motor drive having constant harmonic c

Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent

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Adjusting and sealing means for high pressure gas storage tank

Electricity: circuit makers and breakers – Liquid contact – Time delay
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Profile ID: LFUS-PAI-P-3879

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