WILLIE B FREEMAN
Engineers in North Huntingdon, PA

5569891, Oct 29, 1996

Apr 8, 1994

8/225245

Willie B. Freeman - Irwin PA
David S. Johnson - Greensburg PA
Jeffry R. Meyer - Greensburg PA

ABB Power T&D Company, Inc. - Raleigh NC

H01H 3312, H01H 3346, H01H 3353

200 17R

The invention provides a high performance circuit breaker with an independent pole operation linkage and conical composite bushings. A mechanical linkage for independently opening and closing a plurality of associated switches is provided by the invention. The linkage comprises a plurality of connecting rods that provide the initial driving force to open or close the switch, cranks for opening and closing the contacts of respective switches, linking elements which couple together the connecting rods and the cranks, and a number of lever assemblies having a bearing ring interfaced thereto. The bearing rings provide a supportive interface between two linking element but permit the linking elements to rotate independently from one another. The lever assemblies also provide an interface for the connecting rods and linking element. According to a method of the present invention, a connecting rod is actuated in response to a signal to cause the lever assembly to pivot.

4213020, Jul 15, 1980

Oct 26, 1977

5/845769

Willie B. Freeman - Irwin PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 3524

200 81R

The present invention relates to the utilization of a surge tank in the pneumatic line interconnecting the high-pressure reservoir with the pneumatic control valve controlling the operation of a driving, or operating piston reciprocally operable within a surrounding operating cylinder to operate a circuit-breaker. Preferably, the volume of the surge tank is roughly of the order of the piston-displacement volume traveled by the driving piston in its opening tripping movement of the circuit-breaker, when the mechanism is used to open the circuit-breaker. However, the mechanism may also be used, if desired, to effect closing of the circuit-breaker. Also, preferably, the inlet connection to the surge tank is somewhat restricted in diameter, so as to limit the gas volume exited from the main high-pressure reservoir, yet, however, nevertheless supplying a desirable biasing air pressure to counteract bouncing back, or return movement of the movable circuit-breaker parts at the end of the opening tripping operation of the associated circuit-breaker when the breaker contacts are fully open.

4848262, Jul 18, 1989

Aug 25, 1988

7/236696

Willie B. Freeman - Irwin PA

The United States of America as represented by the Secretary of the Navy - Washington DC

B63B 2152

114367

A release mechanism is triggered when the pressure differential on the siall of a sealed container reaches a predetermined threshold level at which the container either implodes or explodes to sufficiently decrease the spacing between the ends of the container and thereby achieve the release. False triggering due to percussion or shock waves may be precluded by disposing a shield about the sidewall.

4389554, Jun 21, 1983

Jun 26, 1980

6/163131

Willie B. Freeman - Irwin PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 3388

200148A

An electric switch includes a pair of separable contacts operable between open and closed positions with respect to each other. An operator shaft is utilized for moving one of the contacts, and the operator shaft has attached thereto at the opposite end an operator piston which is disposed within an operator cylinder. A chemical operator is utilized for generating a hot gas within the operator cylinder and against the operator piston to cause movement thereof.

2004025, Dec 16, 2004

Jun 13, 2003

10/461063

Jeffry Meyer - Greensburg PA, US
Willie Freeman - Irwin PA, US

H01H033/18

218/043000

A preferred embodiment of a circuit breaker includes a tank having a main portion for housing an interrupter assembly, a bushing insulator adhesively bonded to the tank, and an electrical conductor extending through the bushing insulator and electrically coupled to the interrupter assembly.

4463229, Jul 31, 1984

Nov 13, 1981

6/321136

Willie B. Freeman - Irwin PA
Richard M. Span - Penn Township, Westmoreland County PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 3342, H01H 3538

200 82B

A power circuit breaker has a novel trip valve on the pneumatic operating mechanism for reducing air consumption of the breaker pneumatic operating mechanism. The novel trip valve includes the addition of a valve stem extension to the trip valve shaft disposed in a sliding fit with an exhaust port to the trip valve actuating cylinder which together provide for quick elimination of compressed air from the trip valve actuating cylinder at a predetermined time during the operation of the breaker mechanism. Positive positioning of the breaker contact and rapid closing of the trip valve at a predetermined time is effectuated, thereby reducing air consumption while providing a fail-safe air cushion to the driving piston of the pneumatic mechanism to insure positive positioning of the breaker contacts.

4531031, Jul 23, 1985

May 11, 1984

6/609379

Willie B. Freeman - Irwin PA
Richard M. Span - Penn Township, Westmoreland County PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 3342, H01H 3538

200 82B

Power circuit breaker apparatus having a novel trip valve on the pneumatic operating mechanism for reducing air consumption of the pneumatic breaker operating mechanism. The novel trip valve includes the addition of a valve stem extension to the trip valve shaft disposed in a sliding fit with an exhaust port to the trip valve actuating cylinder which together provide for quick elimination of compressed air from the trip valve actuating cylinder at a predetermined time during the operation of the breaker mechanism. Positive positioning of the breaker contact and rapid closing of the trip valve at a predetermined time is effectuated thereby reducing air consumption while providing a fail-safe air cushion to the driving piston of the pneumatic mechanism to insure positive positioning of the breaker contacts.

5478980, Dec 26, 1995

Apr 5, 1994

8/222831

Willie B. Freeman - Irwin PA
Joachim Stechbarth - Siglistorf, CH
Anthony S. Masarik - Jeannette PA

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

H01H 3388, H01H 3391

218 59

A dead tank high voltage SF. sub. 6 circuit breaker has a stationary cylinder SF. sub. 6 puffer section, an arc generated SF. sub. 6 pressure blast section, a moving arcing contact plug, and a moving open position shield. The contacts are operated by a reduced size operating mechanism which can be used for both 145 kV and 242 kV circuit breakers.

6263914, Jul 24, 2001

Apr 9, 1999

9/288678

Jeffry R. Meyer - Greensburg PA
Willie B. Freeman - Irwin PA

ABB Power T&D Company Inc. - Raleigh NC

F16K 3700

137552

A density monitoring assembly for use in monitoring the gas density within a high voltage circuit breaker tank is disclosed. The density monitoring assembly is coupled directly to an exterior surface of said tank and provides electrical signals indicative of the density of gas within the tank. The assembly comprises a cover that encloses the density monitoring device. The device itself is used to retain the cover. A ball valve and a shraeder type valve are provided to allow testing of the device.

5971374, Oct 26, 1999

Jan 14, 1997

8/782664

Willie B. Freeman - Irwin PA

ABB Power T&D Company Inc. - Raleigh NC

F16F 100

267134

Disclosed is a seismic damper for ground equipment such as high voltage breakers and disconnect switches. The disclosed seismic damper is reactive to low frequency seismic disturbances and provides damping in response to both upward and downward vertical forces. The seismic damper is adapted to be connected to such equipment without modifying the equipment. When the seismic dampers are connected to the equipment, the equipment's natural frequency in response to seismic disturbances is reduced. This reduction results from the particular use of a stacked ring compression spring and the particular configuration and assembly of the components of the seismic damper.