John Mark Power

US Patent:

7012500, Mar 14, 2006

Filed:

Mar 19, 2004

Appl. No.:

10/804510

Inventors:

David Y. Chan - Bellerose NY, US
Roger M. Bradley - North Bellmore NY, US
John J. Power - Westbury NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY

International Classification:

H01C 7/10

US Classification:

338 20, 338 21, 361127

Abstract:

An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of the MOV element rises to a temperature below that at which the MOV will enter into its thermal runaway state. More specifically, the heat sensitive material is located on a surface of the MOV and is electrically connected in series with the MOV. In operation, as the MOV gets hot, it heats the heat sensitive material. As the heat sensitive material gets hot, it starts to separate from the surface of the MOV to form a spark gap which is electrically connected in series with the MOV element to help dissipate excessive voltage. The heat sensitive material on the surface of the MOV element can be a coating of epoxy which cracks and/or breaks away, at least partially from the surface of the MOV element during the occurrence of a high voltage transient surge, or it can be a solder that sputters to form an arc path during the occurrence of a high voltage transient surge. In operation, when a GFCI is subjected to a high voltage transient surge above a certain magnitude, the heat sensitive material forms a spark gap which is in series with the MOV and prevents the GFCI from going into its destructive thermal runaway condition.

US Patent:

8004804, Aug 23, 2011

Filed:

Feb 13, 2009

Appl. No.:

12/371141

Inventors:

Frantz Germain - Rosedale NY, US
David Herzfeld - Huntington NY, US
John J. Power - Westbury NY, US
Armando Calixto - Floral Park NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Melville NY

International Classification:

H02H 3/16

US Classification:

361 42, 361 44

Abstract:

Resettable circuit interrupting devices using a center latch are provided. The circuit interrupting devices include those with a reset lockout, reverse wiring protection, and/or an independent trip portion.

US Patent:

39719693, Jul 27, 1976

Filed:

Oct 2, 1974

Appl. No.:

5/511254

Inventors:

Harry T. Wines - Flushing NY
John J. Power - Westbury NY
Gilbert Knauer - Oceanside NY

Assignee:

Swingline, Inc. - Long Island City NY

International Classification:

H01H 4732

US Classification:

3171485B

Abstract:

An electrically operated stapling device is disclosed. Staples are driven into the article to be stapled by a simple driver blade which is powered by a current actuated solenoid. In the preferred embodiment, the solenoid is provided with a plurality of pulses which are derived from alternate half-cycles of an AC power source which powers the stapling device. The circuit produces two pulses by defining a window in each of the successive output cycles of the power source. The current then initiates the generation of an enabling signal which lasts for a predetermined period of time which begins during the window. During this period of time, alternate half-cycles of the power source are coupled to the solenoid, thereby causing the driver blade to drive the staple into the article to be stapled.