4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Electrostrictive, magnetostrictive, or piezoelectric

Richard F. Hellbaum

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Advanced layered composite polylaminate electroactive actuator a

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Ferroelectric fluid flow control valve

Valves and valve actuation – Electrically actuated valve – Having element dimensionally responsive to field
Patent

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Ferroelectric pump

Pumps – Motor driven – Magnetostrictive chamber
Patent

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Ferroelectric Stirling-cycle refrigerator

Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent

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High displacement solid state ferroelectric loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
Patent

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Profile ID: LFUS-PAI-P-477463

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