BERNARD JACK GERSHEN
Engineers in Center Port, NY

5327047, Jul 5, 1994

Sep 30, 1992

7/954229

Bernard Gershen - Centerport NY

Leviton Manufacturing Co., Inc. - Little Neck NY

G05F 100

315194

A dimmer control system includes two discrete silicon controlled rectifiers which respectively energize a lamp load during alternate half cycles of the input AC voltage. The separate placement of the SCRs ensures that much lower temperatures are reached than would occur if a single triac were used to energize a lamp during both half cycles. The system also includes a pair of diacs which energize the respective SCRs when a respective capacitor directly connected to each diac discharges through one of them. The system further includes a respective capacitor charging circuit for each capacitor, each of the two charge circuits including a series connections of the gate to cathode junction of the SCR other than the one which the capacitor being charged discharges through, a diode, a common fixed resistor, and a common variable resistor.

2005024, Nov 3, 2005

Apr 18, 2005

11/107754

Bernard Gershen - Centerport NY, US
Steve Campolo - Malverne NY, US

H02H003/00

361042000

A leakage current detection interrupter (LCDI) having open neutral detection. In one embodiment, the LCDI is formed in a plug and includes a circuit interrupter means for breaking a conductive path between line side phase and neutral conductors and load side phase and neutral conductors. A tripping means is coupled to operate the circuit interrupter means to break the conductive path upon the detection of the opening of the line side neutral conductor referred to as open neutral condition. The tripping means, which uses the neutral path as a return path if leakage current is detected, will, with this invention, use a line side ground conductor as a return path if the neutral path is broken anywhere between a service panel entrance and the plug. In response to the opening of the line side neutral conductor or leakage current, the LCDI interrupts the flow of current to a load such as a window air conditioner.

2007006, Mar 29, 2007

Jul 11, 2006

11/484110

John DeCosmo - Glenview IL, US
Kenneth Pabst - Northbrook IL, US
Brian Gleason - Des Plaines IL, US
Howard Frank - Skokie IL, US
Bernard Gershen - Centerport NY, US

G05D 23/12

236100000

An alarm system for an indoor Christmas tree comprises a temperature sensor located on the tree or in proximity to the tree, an excessive-temperature detection circuit connected to the sensor and producing an excessive-temperature output signal when the sensed temperature exceeds a predetermined limit, and an alarm receiving the excessive-temperature output signal and producing an alarm indicating that the predetermined temperature limit has been exceeded. The excessive-temperature detection circuit and the alarm are located remotely from the tree, are powered by a standard power distribution system of the building in which the tree is located, and are connected to the temperature sensor at the tree by wires. An alarm may also be produced in response to an open circuit or a short circuit in the wires connecting the excessive-temperature detection circuit to the temperature sensor. The excessive-temperature detection circuit is housed in the plug that connects the alarm system to the power distribution system, and the temperature sensor is contained in a tree ornament in one embodiment.

5600524, Feb 4, 1997

May 4, 1995

8/435021

Benjamin Neiger - New York NY
Bernard Gershen - Centerport NY
Saul Rosenbaum - East Meadow NY

Leviton Manufacturing Co., Inc. - Little Neck NY

H02H 328

361 42

An intelligent circuit interrupt system is electrically connected between an AC source and a load for interrupting a flow of AC from the source to the load upon detection of an interrupt condition. A circuit interrupter electrically connected to phase and neutral terminals of the AC source defines the interrupt condition. A relay switch with a relay coil and phase and neutral contacts is included such that line and load ends of the phase contact are electrically connected, respectively, between the interrupt means load side phase port and a phase terminal of the load. Line and load ends of the neutral contact are electrically connected, respectively, between the interrupt neutral port and a neutral terminal of the load. The relay coil is electrically coupled between load sides of said phase and neutral contacts for controlling the contacts in response to the interrupt signal. An open-contact miswiring detector (OCMD) is electrically connected to one of the phase and neutral contacts for detecting a miswiring condition when the contacts are in an open state, and a closed-contact miswiring detector (CCMD) is electrically connected to the OCMD and to one of the neutral and phase contacts for detecting a miswiring condition when the contacts are in a closed state.

2004007, Apr 15, 2004

Oct 9, 2002

10/267424

Bernard Gershen - Centerport NY, US
Steve Campolo - Malverne NY, US
James Richter - Bayside NY, US
Lester Rivera - Glendale NY, US
David Herzfeld - Huntington NY, US
Roger Bradley - North Bellmore NY, US

H02H003/00

361/042000

With prior art Immersion Detection Circuit Interrupters (IDCI), the firing of the trip coil to open the contacts which interrupts the flow of current to a load uses the neutral conductor as the return path when leakage is detected. If, however, the neutral conductor should become open, there is no return path present to fire the coil. An unsafe condition because the voltage that is present cannot be disconnected from the load. With this invention the SCR, which is used to fire the coil, now uses the ground conductor and diodes as the return path to fire the coil to interrupt the voltage from the load. A fully shielded cord is used to detect a break in a conductor. An LED indicator in either the plug or the receptacle of the extension cord verifies that protection is available. A test button is provided to test shield continuity and to verify proper circuit operation.

6011326, Jan 4, 2000

Jul 15, 1997

8/893942

Bernard Gershen - Centerport NY

Leviton Manufacturing Co., Inc. - Little Neck NY

F21V 3300

307125

A dual lighting control device with a single illuminator includes a line terminal for electrical connection to a source of AC electrical power, first and second electrical switching devices including line and load ends and setable to either an open or closed state and are electrically connected at line ends to the lien terminal. The illuminator, which may comprise a neon lamp, includes first and second terminals and is electrically connected at its first terminal to the line terminal. First and second electrical loads are electrically connectable, respectively, to the load side of the first and second switching devices. First and second diodes are electrically connected between the second terminal of the neon lamp and load ends of the first and second switching devices, respectively. The illuminator is activated when both switching devices are set to the open state or when one of the switching devices is open and the other is closed. The illuminator is off when both switching devices are set to the open state.

4396869, Aug 2, 1983

Aug 27, 1980

6/183592

Saul Rosenbaum - East Meadow NY
Howard S. Leopold - Plainview NY
Bernard Gershen - Centerport NY

Leviton Manufacturing Company, Inc. - Little Neck NY

H05B 3702

315194

A variable voltage power supply includes a switching device through which line AC current is passed in response to the time during which a level setting voltage is applied to a control circuit for the switching device. During the duration of the level setting signal, periodic electrical signals are applied to a counter which is cyclicly incremented and decremented between predetermined lower and upper count limits until the level setting signal is terminated. The count is used as a measure of time into each half cycle of the line AC voltage at which the switch device is closed, the switch device being opened in response to the zero voltage crossing at the end of each half cycle of the AC voltage.

5583730, Dec 10, 1996

Sep 6, 1995

8/524140

Bernard Gershen - Centerport NY
Saul Rosenbaum - East Meadow NY
James N. Pearse - Dix Hills NY

Leviton Manufacturing Co., Inc. - Little Neck NY

H02H 316

361 50

The present invention teaches a new and novel system for protecting people and property against electrical shock. The invention includes a number of preferred and other embodiments which have this as their goal, but which represent a number of distinctive and novel approaches to solving prior art problems. By way of example only, and without limiting the scope of this invention, these approaches include novel immersion detecting circuits, broken wire test circuits, electromechanical circuit breaking means including coil/plunger arrangements, and relay circuit breaking mechanisms cooperative with associated circuitry, all of which are able to be incorporated as a system wholly within the load (appliance) and its associated cord set (including a "plug").

5886423, Mar 23, 1999

Sep 10, 1997

8/926856

Bernard Gershen - Centerport NY
Stanley S. Brenner - East Northport NY

Leviton Manufacturing Co., Inc. - Little Neck NY

H05B 3700

301 36

An electric series circuit with plural loads such as light bulbs connected in series and plural solid state switching devices, with each switching device connected in parallel with one of the loads. Each switching device conducts current when the load that it is connected in parallel with does not conduct current because the load is burned out. The solid state switching means may be any device with a breakthrough voltage which is high enough that it does not conduct when all of the loads conduct current normally. When one of the loads is burned out, that load does not conduct current and the entire line voltage appears across the switching means in parallel with the burned out load. The switching means breaks down. Accordingly, the switching means conducts current and current flows to the remaining loads.

5402298, Mar 28, 1995

Oct 19, 1993

8/138889

Bernard Gershen - Centerport NY
Saul Rosenbaum - East Meadow NY
James N. Pearse - Dix Hills NY

Leviton Manufacturing Co., Inc. - Little Neck NY

H02H 316

361 50

The present invention teaches a new and novel system for protecting people and property against electrical shock. The invention includes a number of preferred and other embodiments which have this as their goal, but which represent a number of distinctive and novel approaches to solving prior art problems. By way of example only, and without limiting the scope of this invention, these approaches include novel immersion detecting circuits, broken wire test circuits, electromechanical circuit breaking means including coil/plunger arrangements, and relay circuit breaking mechanisms cooperative with associated circuitry, all of which are able to be incorporated as a system wholly within the load (appliance) and its associated cord set (including a "plug").