Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-06-12
2007-06-12
Mullins, Burton (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C388S800000, C388S806000, C388S928100, C310S112000, C310S124000, C310S195000, C310S198000
Reexamination Certificate
active
10817835
ABSTRACT:
Practically ideal electrical resonance is employed to soley provide armature power, and stator power if desired, to run DC motors. A practically ideal parallel resonant tank circuit (PIPRC) is used wherein the quotient of the “tank current” divided by the “line current” (called the “quality” or “Q” of the tank) is (1) greater than one, (2) large enough to allow the percent efficiency of the electric motor to be equal to or greater than 95%, and (3) removes enough back emf or enough of the influence thereof so that criteria (1) and (2) can be realized throughout the entire operating range of the motor. Only one PIPRC is needed for a DC motor. Recontrolling and/or redesigning is done for two reasons. First, since DC motors change effective impedance, because of back emf variations, when their speed changes, controls are implemented to ensure that the tank circuit always meets criterion (3), and therefore criteria (1) and (2), thereby maintaining a PIPRC, regardless of how frequent or to what degree speed is changed. Secondly, this first control has the effect of negating the normal ability of a D.C. motor to draw different currents for driving different loads. Therefore, the way current is supplied to the motor is also recontrolled.
REFERENCES:
patent: 2204916 (1940-06-01), Shotter
patent: 2467563 (1949-04-01), Nader
patent: 2480844 (1949-09-01), Fox
patent: 2687506 (1954-08-01), MacFarlane et al.
patent: 2852731 (1958-09-01), Heil
patent: 3577002 (1971-05-01), Hall et al.
patent: 4064442 (1977-12-01), Garron
patent: 4167691 (1979-09-01), Sorensen et al.
patent: 4219739 (1980-08-01), Greenwell
patent: 4625160 (1986-11-01), Hucker
patent: 4675565 (1987-06-01), Lewus
patent: 4734601 (1988-03-01), Lewus
patent: 4772814 (1988-09-01), Lewus
patent: 4794288 (1988-12-01), Lewus
patent: 4808868 (1989-02-01), Roberts
patent: 4959573 (1990-09-01), Roberts
patent: 4982123 (1991-01-01), Raad
patent: 6545443 (2003-04-01), Kushida
patent: 6840045 (2005-01-01), Kusase
patent: 55-56457 (1980-04-01), None
Millen White Zelano & Branigan P.C.
Mullins Burton
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