James F Hopeck

US Patent:

6651314, Nov 25, 2003

Filed:

Jul 19, 2002

Appl. No.:

10/198137

Inventors:

James Frederick Hopeck - Mechanicville NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

H02K 1512

US Classification:

29606, 29598, 29596, 29599, 26427219, 2642722, 310 42, 310 91

Abstract:

A method of forming a winding support structure for use with a superconducting rotor wherein the method comprises providing an inner support ring, arranging an outer support ring around the inner support ring, coupling first and second support blocks to the outer support ring and coupling a lamination to the first and second support blocks. A slot is defined between the support blocks and between the outer support ring and the lamination to receive a portion of a winding. An RTV fills any clearance space in the slot.

US Patent:

7216796, May 15, 2007

Filed:

May 10, 2004

Appl. No.:

10/841964

Inventors:

Jeffrey M. Breznak - Waterford NY, US
Alan Michael Iversen - Clifton Park NY, US
James Fredrick Hopeck - Mechanicville NY, US

Assignee:

General Electric, Company - Schenectady NY

International Classification:

B23K 35/12

US Classification:

228245, 29596

Abstract:

A brazed joint between an armature bar strand package and an end fitting includes a plurality of strands arranged in a tiered array and forming the strand package; a cavity in the end fitting, free ends of the plurality of strands extending through opening in the end fitting and received in the cavity; and an essentially phosphorous-free copper-silver braze alloy joining the free ends of the plurality of strands to each other and to interior surfaces of the end fitting.

US Patent:

20020079783, Jun 27, 2002

Filed:

Dec 22, 2000

Appl. No.:

09/741905

Inventors:

James Hopeck - Mechanicville NY, US

International Classification:

H02K001/22

US Classification:

310/261000

Abstract:

A winding support structure for use with a superconducting rotor and method for forming the same comprises an inner support ring, an outer support ring arranged around the inner support ring, first and second support blocks coupled to the outer support ring and a lamination coupled to the first and second support blocks. A slot is defined between the support blocks and between the outer support ring and the lamination to receive a portion of a winding. The inner ring is a solid ring and the outer ring is a split ring. The outer ring expands to produce a radially outward force against the support blocks and the winding when the inner ring is moved axially with respect to the outer ring. An RTV fills any clearance space in the slot.

US Patent:

62802658, Aug 28, 2001

Filed:

Aug 4, 1999

Appl. No.:

9/366857

Inventors:

James Frederick Hopeck - Mechanicville NY
Marcus Edward Harrington - Clifton Park NY
Steven William Jones - Delanson NY
Patrick Brian Douglass - Amsterdam NY

Assignee:

General Electric Co. - Schenectady NY

International Classification:

H01R 448

US Classification:

439843

Abstract:

A longitudinally-extending bore connector has apertures which receive annular spring electrical connectors. To connect end turns to the bore connector, a main terminal having a prefabricated and preassembled gooseneck at its radially outer end is inserted in a radial bore to locate its distal end in the first aperture of the bore connector forming an electrical connection. The gooseneck at the radially outer end of the main terminal comprises preassembled leaves connected to the main terminal prior to assembly in the machine and connected to the end turn upon installation. A nut on the main terminal is threaded down to secure the main terminal to the shaft. A stud is similarly inserted into a second aperture of the connector bore and electrically connected thereto and to an exciter/slip ring assembly.

US Patent:

53584325, Oct 25, 1994

Filed:

May 18, 1993

Appl. No.:

8/062728

Inventors:

True T. Shih - Schenectady NY
James B. Archibald - Schenectady NY
Thomas B. Jenkins - Schenectady NY
Frederick J. Rink - Clifton Park NY
Paul C. Rasmussen - Scahaghticoke NY
James F. Hopeck - Mechanicville NY
Robert Nygard - Saratoqa Springs NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01R 1305

US Classification:

439825

Abstract:

A connector design for connecting rotor coil end turns and an exciter/rectifier assembly to a rotor bore copper conductor in a dynamoelectric machine. The design includes a terminal stud or pin sized to be closely received in a telescoping manner in a cylindrical receptacle which is fixedly attached to the rotor windings. A similar cylindrical receptacle extends from the other end of the rotor toward the exciter/rectifier assembly. The stud or pin in each case is also modified to include grooves for accepting resilient, sliding electrical contacts so that a resilient electrical contact is obtained when the stud is positioned within the receptacle. The connector elements are also sufficiently rigid as to withstand shock, centrifugal forces at operational speeds, and rotation direction reversal, but which also allows sufficient radial and axial movement to accommodate coil movement associated with rotor temperature and speed changes while simultaneously maintaining a low resistance current path.

US Patent:

60206705, Feb 1, 2000

Filed:

Aug 17, 1998

Appl. No.:

9/135336

Inventors:

Steven William Jones - Delanson NY
Marcus Edward Harrington - Clifton Park NY
James F. Hopeck - Mechanicville NY
Patrick Brian Douglass - Amsterdam NY
Steven Lester Adams - Clifton Park NY
Klaus Sommerlatte - Guilderland NY
Kena Kimi Yokoyama - Latham NY
Apostolos Karafillis - Cambridge MA

Assignee:

General Electric Co. - Schenectady NY

International Classification:

H02K 346

US Classification:

310270

Abstract:

A connector support block has a recess defined in part by an arcuate surface for limiting deflection of a main lead connector coupled between the main lead terminal and the innermost turn of end coils on a generator. The recess is spanned by a pin displaceable in elliptical openings in flanges defining the recess and about which pin the main lead connector makes a 180. degree. bend. By limiting the deflection of the main lead connector, stresses introduced into the main lead connector at the 180. degree. bend, a 90. degree. bend and the joint between the main lead connector and innermost turn are reduced under cyclic loading whereby increased fatigue life of the main lead connector is provided.

US Patent:

59132434, Jun 15, 1999

Filed:

Sep 30, 1997

Appl. No.:

8/941200

Inventors:

James F. Hopeck - Mechanicville NY
Peter B. Nagy - Cincinnati OH

Assignee:

General Electric Co. - Schenectady NY

International Classification:

G01N 2924

US Classification:

73644

Abstract:

An ultrasonic transducer for use in nondestructive testing includes a multi-transducer array mounted on a wedge, the wedge including a surface substantially contoured to conform to a sensing surface to be tested. At least the surface is covered by a silicone rubber material cast as a tubular sleeve which has the following properties: tensile strength--600 psi tear strength--135 psi sound velocity--1,000 m/s density--1,200 kg/m. sup. 3 Shore A Durometer--16.

US Patent:

51189798, Jun 2, 1992

Filed:

Dec 18, 1990

Appl. No.:

7/628898

Inventors:

True T. Shih - Schenectady NY
James F. Hopeck - Mechanicville NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

H02K 3300

US Classification:

310214

Abstract:

In a dynamoelectric generator, a low-resistance electrical contact is provided by a cantilever beam mounted between the outer surface of the rotor body and an overlapping retaining ring. This cantilever beam is part of the wedges in the rotor body and provides a conductive current path for high-frequency eddy currents induced on the surface of the rotor and retaining rings at all operating speeds.