Leonard Brian Simmonds

US Patent:

51641429, Nov 17, 1992

Filed:

Sep 20, 1991

Appl. No.:

7/763005

Inventors:

Leonard B. Simmonds - Winter Springs FL

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

B29C 4326

US Classification:

264294

Abstract:

A process and apparatus are disclosed for step-molding elongated work pieces, such as generator components. A heated press includes a cooling box attached thereto, separated by a thermal insulating gasket. As a first portion of the work piece is being heat cured, a second portion extending adjacent the heated press is placed within the cooling box to prevent its being cured from residual heat of the press. After the first portion has been cured, the second portion is sequentially placed within the heated press. In this manner, the entire elongated work piece is cured and inadvertent "bumps" in the cured work piece are prevented to form the component to its desired shape.

US Patent:

39506657, Apr 13, 1976

Filed:

Sep 25, 1974

Appl. No.:

5/509166

Inventors:

Mark H. Schneider - Verona PA
Emil M. Fort - Murrysville PA
Leonard B. Simmonds - Monroeville PA
Robert J. Kultzow - Monroeville PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

H02K 346

US Classification:

310260

Abstract:

A conductor is provided for large dynamo-electric machines, such as turbine generators, having a header at the end of the conductor for connection in a liquid-cooling system and having means for strengthening and reinforcing the conductor in the region immediately adjacent the header to reduce the excessive strains which may occur in this region and greatly reduce the possibility of failures of the conductor or of individual strands of the conductor.

US Patent:

47663880, Aug 23, 1988

Filed:

Jan 15, 1987

Appl. No.:

7/003535

Inventors:

Leonard B. Simmonds - Winter Springs FL

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G01R 3106
G01R 3112

US Classification:

324545

Abstract:

High voltage testing of stator coils having grounded insulation, end turns with ungrounded insulation, and uninsulated terminals is conducted by placing a non-conductive, preferably transparent and flexible tube over each end turn and injecting a gas, such as silicon hexaflouride SF. sub. 6, having a higher breakdown voltage than air into the tube at one end, so that it flows down the tube around the end turn and out the other end. If desired, the tube can be sealed at the inlet end or both ends by flexible sleeves which are secured snugly about the end turns. Also optionally, the tube can be supported by an adjustable stand so that it does not touch the end turn.

US Patent:

39769020, Aug 24, 1976

Filed:

Jan 21, 1972

Appl. No.:

5/219663

Inventors:

Leonard B. Simmonds - Monroeville PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

B29D 302

US Classification:

310214

Abstract:

A magnetic wedge is made by preparing a composition of a thermosetting resin system and magnetizable particles, placing the composition in a mold, vibrating the mold at least until air bubbles are no longer evolved from the composition, curing the composition, and fabricating the lower portion of the cured composition into the shape desired for the wedge. The vibration removes air and compacts the particles which results in a wedge having overall superior physical and magnetic properties.

US Patent:

51753960, Dec 29, 1992

Filed:

Dec 14, 1990

Appl. No.:

7/627277

Inventors:

Franklin T. Emery - Orlando FL
Leonard B. Simmonds - Winter Springs FL

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01B 734
H02K 1512

US Classification:

174 36

Abstract:

A wall structure for insulating the exterior surface of a high voltage coil having Roebeled windings is provided that comprises an inner insulating layer formed from a hardenable epoxy material for surrounding the coil and filling void spaces on the surface of the coil created by the Roebeled windings, a ground wall layer surrounding the inner layer for grounding the wall structure, and a semiconductive layer formed from a carbon filled epoxy material integrally molded around the outer surface of the inner insulating layer for reducing the electric stress across the insulating layer and in particular across any voids remaining after the insulative layer has been applied over the Roebeled windings on the exterior of the coil. The improved wall structure advantageously increases the lifespan of high voltage coils by reducing the electric stress across the inner moulding layer, thereby reducing the probability that damaging electric arcing will ever occur in any void spaces present in this layer.

US Patent:

43792430, Apr 5, 1983

Filed:

Nov 2, 1981

Appl. No.:

6/317099

Inventors:

George F. Dailey - Plum PA
Charles R. Ruffing - Edgewood Borough PA
Leonard B. Simmonds - Monroeville PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H02K 346

US Classification:

310260

Abstract:

An end turn support structure is disclosed which permits it to be constructed with varying, preselected coefficients of expansion along its length. This characteristic allows it to expand in a similar manner to the end turns which it supports. This structure also comprises conformable members and external support apparatus that provide a means for firmly attaching the end turns to the support structure and the support structure to the stator frame.

US Patent:

49821229, Jan 1, 1991

Filed:

Apr 12, 1989

Appl. No.:

7/338354

Inventors:

Charles M. Rowe - Orlando FL
Hector O. Ponce - Winter Park FL
Leonard B. Simmonds - Winter Springs FL
Emil M. Fort - Maitland FL

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H02K 322
H02K 350

US Classification:

310 54

Abstract:

An improved method and apparatus for preventing electrical shorts between sets of stator coil headers and accompanying connections is disclosed in which a reinforced, non-conducting cover is fitted over a pair of stator coil headers, or a stator coil header and an adjacent phase connector. Thereafter, the cavity formed by the fitted cover can be filled with an insulating, solidifying or polymerizing material or resin. Use of such an apparatus insulates the entire header apparatus and prevents any accidental shorting between sets of stator coil ends.

US Patent:

39783596, Aug 31, 1976

Filed:

Oct 30, 1974

Appl. No.:

5/519159

Inventors:

Robert J. Kultzow - Croton-on-Hudson NY
Leonard B. Simmonds - Monroeville PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

H02K 346

US Classification:

310260

Abstract:

A construction is provided for the stator coil ends of large dynamoelectric machines such as turbine generators of the inner-cooled type which effectively insulates the ends of the gas coils and mechanically reinforces them without interfering with ventilation. An insulating vent cap is applied over the ventilating tubes at each end of each conductor. The vent caps have a soft, uncured portion and are fitted to the conductor and then impregnated with a resin and cured in place to obtain a good fit of the cap on the conductor. The complete coil ends and connections are then covered with an insulating and mechanically reinforcing tape.