THOMAS E ANDERSON, MD
Medical Practice at Euclid Ave, Cleveland, OH

4408270, Oct 4, 1983

Jul 16, 1981

6/284016

Thomas E. Anderson - South Euclid OH
Alvin A. Bush - South Euclid OH
John Giorgis - South Euclid OH

General Electric Company - Schenectady NY

H02M 7537

363132

An inverter circuit having two pairs of transistors, the transistors of each pair thereof being connected in series to alternately and repetitively apply electrical energy to an inductive load such as a fluorescent lamp. A square wave voltage is applied in opposite phase to electrodes of a first transistor of each pair thereof for rendering them alternately in condition for conduction and nonconduction. Each time a first transistor of one pair thereof becomes nonconductive, current in the inductive load reduces and an inductively induced flyback voltage is generated therein, which voltage is applied to the base electrode of the second transistor of the other pair thereof for creating a stored charge which turns on this transistor and keeps it on during the half-cycle, whereby the pairs of transistors are alternately turned on and off for applying alternating current through the load. Rapid discharge circuits are provided for the removal of residual stored charges.

4591942, May 27, 1986

Dec 7, 1984

6/679660

Henry G. Willard - Wethersfield CT
Thomas E. Anderson - Highland Heights OH

General Electric Company - New York NY

H02H 308, H01F 4006

361 97

A current sensing transformer useful for sensing overload current with static trip units is fabricated from an inexpensive array of transformer core laminations and a conventional secondary transformer winding. The transformer primary strap is arranged about the secondary winding for improved flux transfer.

4320325, Mar 16, 1982

Feb 19, 1980

6/122399

Thomas E. Anderson - South Euclid OH

General Electric Company - Schenectady NY

H05B 3700, H05B 3900, H05B 4114

315205

A circuit for starting and ballasting a compact high-intensity arc discharge lamp. A filament connected in series with the arc lamp provides illumination during arc start-up and functions as a ballast during normal arc operation. An oscillatory starting circuit includes a transformer and a frequency-controlling ringing circuit, and applies starting voltage to the arc lamp until an operating arc is established. The circuit includes capacitor means for isolating the starting transformer from the operating path of the arc lamp, and further includes a voltage-doubling starting circuit and also a "keep-alive" feature which prevents the arc from extinguishing during power fluctuations.

4359669, Nov 16, 1982

Dec 22, 1980

6/219003

Thomas E. Anderson - South Euclid OH

General Electric Company - Schenectady NY

H05B 3702, H05B 4144

315208

Lamp modulating circuitry particularly useful for flashing fluorescent lamps in response to music or other audio signals employs an input filter to screen out signals having frequencies less than 20 hertz or greater than 200 hertz. An amplitude demodulator detects the peak amplitude of signals received from the input filter and develops a signal representing the envelope of the low audio frequencies. An automatic gain control compares the instantaneous and average signals derived from the amplitude demodulator and develops an average signal using an output filter. Signals transmitted past the output filter are used by lamp flashing circuitry to cause the output of a fluorescent lamp to be modulated.

2005004, Mar 3, 2005

Aug 27, 2003

10/650306

Thomas Anderson - Olmsted Township OH, US

A47L005/30

015339000, 015383000

A vacuum sweeper brushroll having a ball magnet fitted into a hole in the outer peripheral surface of the brushroll spindle in position to activate an indicator, such as an LED assembly, during rotation of the brushroll.