A Selection of Patents

John Ecklin Alexandria, Virginia & FLUX S WITCH AL TERN A TOR

John Ecklin's *'stationary armature generator" (S.A.G.) concept has inspired and produced a variety of spin-off designs, based on the principle of circumventing back E.M.F. as established by Lenz's Law.

The 1975 Ecklin U.S. Patent No. 3,879,622, spurred interest in his concept which essentially comprised of spinning a soft iron sheild or shutter between two permanent magnets thereby interrupting the magnetic lines of force. The shields serve to reverse the magnetic within stationary central coil, and thereby circumvent the back-EMF per Lenz's Law, to produce an increased electrical output yield from the coil.

These units, known as SAG's or stationary armature generators led to the design and construction of larger and more effective types of unit and eventually the V.R.G.'s or variable reluctance generators/alternators.

The Patent Abstract to the original Stationary Armature Generator outlined as follows: "A permanent magnet motor in one embodiment utilize a spring-biased reciprocating magnetizable member positioned between two permanent magnets. Magnetic shields in the form of rotatable shutters located between each permanent magnet and the reciprocating member to alternately shield and expose the member to the magnetic field thereby producing reciprocating motion. A second embodiment utilizes a pair of reciprocating spring-biased permanent magnets with adjacent like magnetic poles separated by a magnetic shield which alternately exposes and shields the like poles from the repelling forces of their magnetic fields."

The V.R.G, generally consists of alternate A.C. and D.C. field windings, with the smaller D.C. input producing a large A.C. output which can be utilized for a variety of load devices. These units have reached an input to output ratio of approximately 3:1, with further development work continuing. Both here and abroad (Denmark) and R&D effort is moving ahead on these V.R.G. units.

United States Patent m



(7ft) Inventor: Jots W. EckJIo. 6I43K Edsall Rd . Alexandria, Va. 22304

311/149; 318/153; 310/113; 310/155

|S81 Pte&i ertSearefc 318/140, 141. 142. 144.

318/148, 149. 151, 152. 153. 138; 310/159. 102 St, 103. 113, 158, 159. 152, 154. 156, 168, 171. 177, 179, 4«. 181. 155; 322/39. 90, 100, 13


A unitized (single unit) motor and flux switch alternator having stationary field, armature and motor windings which provides a magnetic path for some of the motor input power to feed through and increase the alternating current (AC) generator output. A rotor formed from a material having a high magnetic permeability (solid or laminated son steel) is controlled in speed by controlling the magnitude and timing of the pulsed direct current (DC) supplied to the motor windings which may be wound on the stationary legs or the rotor. The current (low in the motor windings can be controlled by a mechanical commutator if the motor windings are on the rotor or by a solid-state converter if the motor windings are on the legs in a manner normally associated with brushless DC motors. The DC windings of the flux switch alternator can be replaced by permanent magnets since the reversing field in the AC output windings are predominantly time stationary.

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