DAVID C SMITH
Medical Practice in Pittsburgh, PA

5508487, Apr 16, 1996

Mar 30, 1994

8/220246

David W. Smith - Pittsburgh PA
Jeffry R. Meyer - Greensburg PA

ABB Power T&D Company Inc. - Blue Bell PA

H01H 3342, H01H 920

218154

A circuit switching mechanism for use in a high voltage circuit breaker is disclosed. The disclosed mechanism comprises a charging system (12); trip latch mechanism (14); an opening spring (16); a closing spring (18) positioned coaxially with the opening spring; a support structure (22) supporting the open and closing springs; and a first rod member (24) operatively associated with a circuit interrupter, the first rod member being operatively coupled to the open and closing springs such that discharging of the opening spring effects the movement of the first rod member in a first direction and discharging of the closing spring effects the movement of the first rod member in a second direction. The trip latch mechanism (14) comprises a hammer; a trip link; a first pin through the hammer and trip link; a second pin attached to the trip link, the second pin positioned such that the hammer, upon a predetermined amount of rotation about the first pin, bears against the second pin; a trip finger; and a third pin through the trip link and trip finger, the trip finger bearing against the support structure to hold at least one of the springs in a charged state.

6839755, Jan 4, 2005

Sep 30, 1998

09/163787

David A. Kumpf - Rocklin CA, US
Glenn R. Garcia - Grass Valley CA, US
David L. Smith - Pittsburgh PA, US

Hewlett-Packard Development Company, L.P. - Houston TX

G06F 15173, G06F 1516

709225, 709228

A multifunction peripheral server discovery method with reduced network traffic is disclosed. Peripheral servers on a network advertise their basic function, such as print, and clients seeking peripherals with an additional function, such as scan, retrieve ID strings of peripherals having the basic function to determine if the additional function is available. The method also permits a user of a client on the network to enter addresses of peripherals not discovered when the client searches for peripherals having the additional function. The method also permits selection of a network protocol to be used by the client. An additional preferred step in the method is a determination of whether discovered peripherals having the additional function are compatible with a software application run by the client.

6033412, Mar 7, 2000

Apr 3, 1998

9/054657

H. Wolfgang Losken - Pittsburgh PA
Gerald G. Cano - Pittsburgh PA
Richard J. Arnott - Pittsburgh PA
Thomas G. Loebig - Pittsburgh PA
David W. Smith - Pittsburgh PA

A61B 1766

606105

An implantable distractor that provides controlled forceful movement either to facing bone ends created by osteotomy or across cranial sutures for the purpose of fostering bone deposition to support bone growth (distraction osteogenesis). The improved Distractor adjusts separation of such through precise, forceful, incremental movements. The mechanism has an actuator powered by intermittent electrical current flow through a shape-memory-effect (SME) actuation component. The SME component deforms forcefully. This force is amplified to result in incremental separation of two plates affixed to bone on either side of the osteotomy or suture.