Stephen J Schmidt

US Patent:

6965629, Nov 15, 2005

Filed:

Jun 7, 2004

Appl. No.:

10/862548

Inventors:

Kurt A. Schroder - Coupland TX, US
Douglas Keith Jackson - Austin TX, US
Stephen James Schmidt - Round Rock TX, US

Assignee:

Nanotechnologies, Inc. - Austin TX

International Classification:

H05B007/22
G01G001/02

US Classification:

373 62, 21912159, 423 26

Abstract:

A nanopowder synthesis system having an autofuser device which obviates the need for external power switches, and which accommodates repeated discharges (of the order of 10) between ablating electrodes of precursor material at a high repetition rate (≧1 Hz).

US Patent:

7477500, Jan 13, 2009

Filed:

Sep 30, 2004

Appl. No.:

10/955166

Inventors:

Stephen James Schmidt - Round Rock TX, US
Steven C. McCool - Austin TX, US

Assignee:

NovaCentrix Corp. - Austin TX

International Classification:

H02H 7/00

US Classification:

361 62

Abstract:

A power and signal distribution system is adaptable to existing building areas and provides a shielded, low resistance and low inductance grounding structure. The distribution system comprises two or more electrically conductive enclosed channels; one for lower current signals and power distribution and one for high current signals and power distribution. The enclosed channels are electrically coupled and are configured as crosses or spokes with branches extending substantially over the length and width of the building area. The earth ground for the building has a direct connection to one of the enclosures. The ground of each device in the building area is directly connected to the enclosed channels by a low impedance connection. Cables are routed through the enclosures and extended to the devices. The walls of the enclosed channels have a thickness that is greater than the skin depth of a predetermined low frequency.

US Patent:

20060071639, Apr 6, 2006

Filed:

Sep 30, 2004

Appl. No.:

10/955018

Inventors:

Rens Ross - Austin TX, US
Stephen Schmidt - Round Rock TX, US

Assignee:

Nanotechnologies, Inc. - Austin TX

International Classification:

H02J 7/00

US Classification:

320116000

Abstract:

An AC power source is coupled to a step-up transformer that provides a rectified DC output voltage to charge an intermediate capacitor. A high voltage electronic switch is turned ON and OFF by a control signal to couple and decouple the intermediate capacitor to the input of an inductor that supplies current to a capacitor bank. A switching regulator controller generates a control signal to vary the turn ON and OFF times of the electronic switch to generate a controlled current through the inductor while the voltage across the capacitor bank varies over a positive and negative voltage range during charging and discharging of the capacitor bank. The controlled current through the inductor is maintained while the capacitor bank is discharged. The value of the controlled current may be constant or varied in response to input and output voltage and current parameters.

US Patent:

20080006521, Jan 10, 2008

Filed:

Jul 22, 2005

Appl. No.:

11/187376

Inventors:

Kurt Schroder - Coupland TX, US
Douglas Jackson - Austin TX, US
Stephen Schmidt - Round Rock TX, US

Assignee:

Nanotechnologies, Inc. - Austin TX

International Classification:

H05F 3/00
B01J 19/08

US Classification:

204164000, 422186210

Abstract:

A nanopowder synthesis system having an autofuser device which obviates the need for external power switches, and which accommodates repeated discharges (of the order of 10) between ablating electrodes of precursor material at a high repetition rate (≧1 Hz).