Richard A Dziura

US Patent:

48841641, Nov 28, 1989

Filed:

Feb 1, 1989

Appl. No.:

7/305341

Inventors:

Richard A. Dziura - Plainville CT
Ronald R. Russell - Plainville CT
Graham A. Scott - Avon CT

Assignee:

General Electric Company - New York NY

International Classification:

H02M 3053

US Classification:

361 97

Abstract:

An electronic trip unit within a self-contained circuit interrupter utilizes dual electromagnetic trip actuators. One such actuator responds to overcurrent conditions to interrupt the protected circuit up to a predetermined value. The other such actuator interrupts the protected circuit at all overcurrent conditions in excess of the predetermined value.

US Patent:

47001615, Oct 13, 1987

Filed:

Jul 7, 1986

Appl. No.:

6/882989

Inventors:

Frank A. Todaro - Clinton CT
Richard A. Dziura - Plainville CT
Roger N. Castonguay - Terryville CT

Assignee:

General Electric Company - New York NY

International Classification:

H01M 900

US Classification:

335172

Abstract:

A combined trip actuator and accessory module for molded case circuit breakers is accessible in the field for user selected accessory options. The trip actuator includes a U-shaped stator with a permanent magnet at the end of one leg. A spring-loaded armature member extends across both legs to form a closed-loop magnetic circuit. The over-current trip coil and shunt trip coil are arranged on one leg with the undervoltage coil arranged on the other leg. The accessory module is accessible from the top surface of the breaker cover for field installation of the undervoltage and shunt trip coils to provide the corresponding undervoltage and shunt trip functions.

US Patent:

48068934, Feb 21, 1989

Filed:

Mar 3, 1988

Appl. No.:

7/163589

Inventors:

Roger N. Castonguay - Terryville CT
Robert A. Morris - Burlington CT
Richard A. Dziura - Plainville CT
Graham A. Scott - Avon CT
Gregory T. DiVincenzo - Plainville CT

Assignee:

General Electric Company - New York NY

International Classification:

H01H 7306

US Classification:

335 20

Abstract:

An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent trip actuator and multiple accessory unit can be field-installed within the integrated protection unit. The combined actuator-accessory unit includes electronic control circuitry for the accessories along with mechanical trip and reset interface components.

US Patent:

50159836, May 14, 1991

Filed:

Jun 18, 1990

Appl. No.:

7/539399

Inventors:

Donna C. DeRosier - Plainville CT
Richard A. Dziura - Plainville CT
Joseph M. Palmieri - Southington CT
Eric D. Juntwait - Plainville CT
Linda Y. Jacobs - Barkhamsted CT
Graham A. Scott - Avon CT

Assignee:

General Electric Company - New York NY

International Classification:

H01H 7108

US Classification:

336180

Abstract:

A compact circuit breaker containing an electronic trip unit for interrupting overcurrent conditions within a protected circuit is made operable over a wide operating current range by means of current transformers having multiple turn primary windings. The primary windings are selected to provide a constant ampere-turns ratio to the current transformers without changing the size of the secondary winding or the volume of the transformer core.

US Patent:

47572949, Jul 12, 1988

Filed:

Jul 30, 1987

Appl. No.:

7/079556

Inventors:

Frank A. Todaro - Clinton CT
Richard A. Dziura - Plainville CT
Roger N. Castonguay - Terryville CT

Assignee:

General Electric Company - New York NY

International Classification:

H01H 902
H01H 1304

US Classification:

335202

Abstract:

A combined trip actuator and accessory module for molded case circuit breakers is accessible in the field for user selected accessory options. The trip actuator includes a U-shaped stator with a permanent magnet at the end of one leg. A spring-loaded armature member extends across both legs to form a closed-loop magnetic circuit. The over-current trip coil and shunt trip coil are arranged on one leg with the undervoltage coil arranged on the other leg. The accessory module is accessible from the top surface of the breaker cover for field installation of the undervoltage and shunt trip coils to provide the corresponding undervoltage and shunt trip functions.