Astro Dynamics, Inc.

Lawrence A Ormord

Leonhard Katz

This disclosure is concerned with a motor technique for generating speeds that are fractions of synchronous speeds, through novel time-staggered selected half-cycle energization of a plurality of magnetic poles by a controlled switching sequence, generating such a fractional motor speed that would otherwise have to be produced by a much larger number of magnetic poles.

Trans-synchronous motor apparatus and method

This disclosure deals with a motor technique for enabling the running at speeds higher than 3600 r.p.m., for 60 c.p.s. excitation, without the previously required commutators, brushes, gear boxes or frequency changers, through novel sequence switching of different selected portions of three-phase power, controlled to cause multiple magnetic pole energization at different times from different power phases in order to produce successive phase-displaced resultant waveforms that are substantially sinusoidal but of a multiple of 60 c.p.s.

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West Lynn, MA, United States of America

Lawrence A Ormord