JOSEPH J MATSKO
Engineers in Beaver, PA

6005757, Dec 21, 1999

May 11, 1998

9/075799

Randal P. Shvach - Conway PA
Joseph J. Matsko - Beaver PA

Eaton Corporation - Cleveland OH

H02H 300

361 64

A first trip unit for interconnection with a second trip unit includes current transformers and potential transformers for sensing current, voltage and frequency conditions of a circuit breaker's separable contacts. A microprocessor-based trip mechanism provides a trip signal, which is employed by the circuit breaker's operating mechanism to open the separable contacts as a function of the sensed electrical conditions and related predetermined operating values. The microcomputer's transceiver communicates with the second trip unit over a passive two-wire communication cable to acquire the predetermined settings of the second trip unit. The microcomputer includes a firmware routine which employs the acquired predetermined settings as its predetermined values.

7696448, Apr 13, 2010

Jun 8, 2007

11/760234

Paul R. Rakus - Beaver Falls PA, US
Andrew L. Gottschalk - Pittsburgh PA, US
Nathan J. Weister - Darlington PA, US
Joseph J. Matsko - Beaver PA, US
Robert M. Slepian - Murrysville PA, US
Douglas C. Marks - Murrysville PA, US

Eaton Corporation - Cleveland OH

H01H 9/00

200400, 200308

The closing protection mechanism provided herein includes a control unit, a sensing switch and a sensing switch actuator. The control unit is coupled to, and in electronic communication with, the trip device. The control unit is structured to receive a sensing switch signal and to provide a control signal to the trip device. The sensing switch coupled to, and in electronic communication with, the control unit. The sensing switch is disposed adjacent to the toggle assembly. The sensing switch is structured to provide a sensing switch signal to the control unit. The sensing switch actuator is disposed on the toggle assembly. The sensing switch actuator is structured to actuate the sensing switch. The sensing switch is structured to be actuated by the sensing switch actuator when the toggle assembly is in the second, over-toggle configuration.

4331996, May 25, 1982

Aug 22, 1979

6/068774

Joseph J. Matsko - Beaver PA
Raymond O. D. Whitt - Brighton Township, Beaver County PA
Roy W. Lange - Brighton Township, Beaver County PA

Westinghouse Electric Corp. - Pittsburgh PA

H02H 324

361 92

This concerns an undervoltage relay device for a circuit breaker system with a time delay feature. Two lines of the electrical system to be protected are monitored by a transformer. The output of which is rectified and provided to a capacitive element which, among other things, filters the signal. The capacitive element may comprise a single capacitor or combination of capacitors. The combination chosen is the function of the amount of time delay desired. If the voltage across the monitor lines drops below a predetermined value, the voltage level across the capacitive element begins to drop accordingly. This decreasing voltage signal is provided by way of a voltage divider to one input terminal of a comparator. The other input terminal of which is maintained at a reference voltage. When the signal voltage drops below the reference voltage, the comparator shift state thus causing an undervoltage relay coil to be deenergized.

7561387, Jul 14, 2009

Oct 19, 2005

11/254536

Theodore J. Miller - Oakdale PA, US
Joseph J. Matsko - Beaver PA, US
Mark A. Juds - New Berlin WI, US

Eaton Corporation - Cleveland OH

H02H 9/02

361 35, 361 931

A current transformer comprises a coil, a core and a shunt member. The core forms a magnetic circuit and has a first permeability. At least a portion of the core is encircled by the coil. The shunt member is coupled to the core and has a second permeability. The shunt member is continuous and forms a magnetically parallel path with the at least a portion of the core encircled by the coil. The current transformer may be incorporated in to a trip device.

5483408, Jan 9, 1996

Mar 25, 1994

8/218008

Joseph J. Matsko - Beaver PA
Joseph C. Engel - Monroeville PA
Alan B. Shimp - Monroeville PA

Eaton Corporation - Cleveland OH

H02H 316

361 94

A circuit interrupting device provides for operator selection of protection parameters for a neutral conductor separate from operator selected phase protection.

4809125, Feb 28, 1989

Feb 20, 1987

7/017300

Joseph J. Matsko - Beaver PA
Gary F. Saletta - Penn Township, Westmoreland County PA

Westinghouse Electric Corp. - Pittsburgh PA

H02H 308

361 93

A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the operating characteristics to preselectable tripping parameters and for initiating a trip condition when an operating characteristic exceeds a corresponding tripping parameter. Additionally, a circuit arrangement for establishing a ground fault current limit using a minimum number of components to achieve a wide range of possible settings, is also included.

2007009, May 3, 2007

Dec 19, 2006

11/612688

David Shipp - Murrysville PA, US
Joseph Matsko - Beaver PA, US
James Lagree - Robinson Twp. PA, US
Michael Hodder - Oakville, CA
Ronald Vaill - Irwin PA, US

H01H 73/00

361115000

Maintenance trip functions override the normal or specified trip functions of a low voltage circuit breaker to reduce pickup currents and/or time delays to effect faster trips, which reduces arc energy produced by faults during maintenance or testing on a live circuit breaker.

5367427, Nov 22, 1994

Jul 15, 1993

8/092294

Joseph J. Matsko - Beaver PA
Gary F. Saletta - Penn Township, Westmoreland County PA

Eaton Corporation - Cleveland OH

H02H 304

361 94

A graphical representation of the current/time trip characteristic displayed on the operator's panel of an electronic trip unit for a circuit interrupter, has different indicia, such as different colors, identifying the representation of independent trip functions from those of dependent trip functions, thereby making the operator aware that adjustment of one of the dependent trip functions will also affect an adjustment of the other dependent portions of the current/time trip characteristic.

6055145, Apr 25, 2000

Oct 27, 1992

7/969731

James L. Lagree - Plum Borough PA
Joseph J. Matsko - Beaver PA

Eaton Corporation - Cleveland OH

H02H 300

361 931

A microprocessor based overcurrent trip unit which generates trip signals as an adjustable function of current and time, has a visual representation of the trip function on a front panel with 2-color LEDs associated with the trip function serving as indicators of trip conditions when red, and of a selected programmable parameter when green. The green LEDs flash to indicate parameter selected for modification in a program mode and illuminate steady in a view mode.

4827369, May 2, 1989

Feb 20, 1987

7/017376

Gary F. Saletta - Penn Township, Westmoreland County PA
Joseph J. Matsko - Beaver PA

Westinghouse Electric Corp. - Pittsburgh PA

H02H 3093

361 96

A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the operating characteristics to preselectable tripping parameters and circuit arrangement for initiating a trip condition when an operating characteristic exceeds a corresponding tripping parameter. Additionally, a circuit arrangement for selecting and displaying operating information in an understandable format and in an easily accessible position on the circuit interrupter is also included.