RUDI OSKAR KRENZ
Pilots at Big Sky Dr, Albuquerque, NM

6831246, Dec 14, 2004

Sep 12, 2002

10/242639

Rudi Oskar Krenz - Albuquerque NM

General Electric Company - Schenectady NY

B23H 100

219 6916, 219 692, 318571, 700162

An electrical discharge machining (EDM) apparatus includes a plurality of machining heads, at least one EDM control system, and a plurality of programmable servo drives. Each one of the programmable servo drives is connected to the EDM control system and to a respective one of the plurality of machining heads. The programmable servo drives receive a velocity command from the EDM control system and feed a control signal to a respective one of the plurality of machining heads to control electrode positioning.

6833524, Dec 21, 2004

Nov 1, 2002

10/286184

Rudi Oskar Krenz - Albuquerque NM

General Electric Corporation - Schenectady NY

B23H 100

219 692, 219 6911, 408 43

An electrical discharge machining apparatus is provided with at least two work stations. A first servomotor is mounted above the first and second work stations, and a second servomotor mounted to the first servomotor so as to be selectively positioned over either of the first and second work stations by the first servomotor. The second servomotor is capable of causing relative motion between an electrode and a workpiece fixture in the first work station when positioned over the first work station and causing relative motion between an electrode and a workpiece fixture in the second work station when positioned over the second work station.

6369343, Apr 9, 2002

Sep 20, 2000

09/666852

Rudi Oskar Krenz - Albuquerque NM
Brett Wayne Byrnes - Tijeros NM
Willem Thomas DeGraaff - Albuquerque NM

General Electric Company - Schenectady NY

B23H 100

219 6911, 219 692

An electrical discharge machining (EDM) apparatus includes a single workpiece fixture for holding a workpiece and a plurality of machining heads for machining different features into the workpiece. For example, a first machining head is arranged to machine a first feature into the workpiece, and a second machining head is arranged to machine a second feature into the workpiece. Each machining head is connected to a separate control system so as to operate independently.

6563071, May 13, 2003

May 15, 2001

09/855443

Rudi Oskar Krenz - Albuquerque NM

General Electric Company - Schenectady NY

B23H 102

219 6913, 219 6917, 219 692, 307 18

An electrical discharge machining (EDM) apparatus includes a plurality of work stations, where each work station has at least one electrode. The EDM apparatus further includes one or more power supplies and a power transfer switch for alternately supplying power to various sets of the electrodes. The power transfer switch has a first state wherein each power supply is connected to a corresponding first electrode in one of the work stations and a second state wherein each power supply is connected to a corresponding second electrode in another work station.

5115112, May 19, 1992

Feb 25, 1991

7/660086

George E. Fitz - Albuquerque NM
Rudi O. Krenz - Albuquerque NM
Harmon R. Carnes - Albuquerque NM

General Electric Company - Cincinnati OH

B23H 712, B23H 910

219 692

A device for machining a cylindrically shaped gas turbine engine component includes a computer numerical controlled lathe and a wheel-shaped electrode for spark erosion machining of the component. The lathe includes a faceplate for mounting and rotating the component, and a gage surface is concentrically mounted relative to the component on the faceplate for in-process determination of a largest gaged radius of the wheel-shaped electrode. The radius is determined by the computer numerical control when an electronic current sensing circuit signals the computer numerical control that the electrode has contacted the gage surface. The electrode can then be positioned relative to the component, to correct for erosion of material from the electrode caused by the previous machining cycle, before a subsequent machining cycle.

7378611, May 27, 2008

Mar 19, 2004

10/804638

James Marion Vau - Los Lunas NM, US
Rudi Oskar Krenz - Albuquerque NM, US

General Electric Company - Schenectady NY

B23H 7/26, B23H 9/14

219 6915

A work station for an electrical discharge machining apparatus, including a first mechanism for retaining a workpiece in a predetermined position, at least one electrode for forming a feature on the workpiece, and a second mechanism for positioning the electrode in a manner that is movable into and out of engagement with a designated portion of the workpiece. A portion of the second mechanism is connected to the first mechanism so as to automatically align the electrode with the designated portion of the workpiece. The second mechanism is configured so that the electrode is electrically insulated from the workpiece.

6326576, Dec 4, 2001

Sep 22, 1999

9/401524

Rudi O. Krenz - Albuquerque NM
Willem T. De Graaff - Albuquerque NM
Kenneth E. Mascarenas - Bosque Farms NM

General Electric Company - Cincinnati OH

B23H 100, B23H 104, B23H 730

219 6911

An electrical discharge machining (EDM) apparatus includes at least one work station having an electrode fixedly mounted to a base and a workpiece fixture slidingly mounted to the base above the electrode. A servomotor is mounted to the base and arranged to drive the workpiece fixture toward and away from the workpiece. Preferably, the EDM apparatus will include a number of such work stations, and each work station will be connected to a separate control system for independently controlling and energizing the work station.