JAMES OLIVER REXROAD
Engineers in Beaver, PA

4081642, Mar 28, 1978

Nov 19, 1975

5/633190

James O. Rexroad - Beaver PA
Louis N. Ricci - Beaver Falls PA

Westinghouse Electric Corporation - Pittsburgh PA

H01H 300

200153G

An improved switch construction is provided having an overcenter-toggle mechanism for effecting the actuation of the one or more movable contacts of the switch. A pivotally-mounted operating lever carries one end of a toggle-tension spring, the other end of which is pivotally connected to the knee-joint pivot of a pair of pivotally-connected toggle links. The line of action of the force of the toggle-tension spring is such as to effect a straightening, or a collapsing of the pivotally-connected toggle-links, to thereby effect, respectively, a closure of the switch contacts, or an opening operation thereof. Preferably, a releasable rotatable support, or trigger is provided for the pivotal connection of one of the toggle links, so that a remote tripping operation is possible by an unlatching of the releasable support, which normally provides a stationary pivot for the toggle linkage of the mechanism. The construction is such that should welding occur at the contacts, the rotatable operating arm will indicate a correct position of the contacts, regardless of the effort manually made to provide a different indication of the handle.

4068287, Jan 10, 1978

Feb 20, 1976

5/659870

Zelko J. Kruzic - New Brighton PA
James O. Rexroad - Beaver PA

Westinghouse Electric Corporation - Pittsburgh PA

H02B 120

361341

A circuit breaker structure characterized by a multi-pole circuit breaker which is adapted for quick removal and/or replacement of a circuit breaker having at least two horizontally spaced poles, each pole comprising two vertically spaced incoming and outgoing terminals or disconnecting contact assemblies, each terminal comprising a plurality of horizontally spaced terminal members or fingers which are vertically disposed, the terminals being adapted to connect with a plurality of spaced incoming and outgoing bus conductors comprising upper and lower sets of conductor members or fingers which are interengageable with the terminal fingers of the corresponding terminals, each set of upper and lower incoming and outgoing terminals having aligned apertures, each set of upper and lower incoming and outgoing conductor fingers having aligned slots, a first insulated bolt and nut assembly extending through the aligned apertures of the upper set of terminal fingers and having insulating spacers between horizontally spaced terminals, and a second insulated bolt and nut assembly extending through the apertures of the lower set of terminal fingers and having insulating spacings between each terminal, whereby upon tightening of the bolt and nut assembly, the terminal fingers and conductor fingers are retained in tight electrically conductive surface-to-surface contact with each other.

4112269, Sep 5, 1978

Jan 5, 1977

5/757102

Hugh A. Nelson - Plum Borough PA
Raymond H. Schweinebraten - Upper St. Clair PA
Nicholas A. Salemi - Plum Borough PA
James O. Rexroad - Beaver PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 920

200 50AA

A drawout switchgear characterized by a circuit interrupter unit movable into and out of a cell between disconnected and connected positions of stationary primary terminal means supported in the cell and on said unit, retractable second contact means engageable at an intermediate position between the disconnected and connected positions, and a levering-in mechanism for moving said unit between disconnected, intermediate, and connected positions of said terminal and contact means, the levering-in mechanism comprising a cam having a slot of two segments one of which has a higher mechanical advantage and the other for moving the unit into the connected position.

4262175, Apr 14, 1981

Apr 25, 1979

6/033276

James O. Rexroad - Beaver PA
John P. Majcher - Chippewa Township, Beaver County PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 920

200 50AA

Drawout switchgear characterized by a circuit interrupter unit movable into and out of a cell between disconnected and connected positions of separable terminals supported in the cell and on said unit, a levering-on mechanism for moving said unit between disconnected and connected positions of the terminals, the levering-in mechanism comprising a pair of cams on a cam shaft which shaft comprises telescoping shaft segments to facilitate assembly of the operating mechanism.

4139748, Feb 13, 1979

Jan 5, 1977

5/757103

Jerome K. Wolfe - Franklin Borough PA
Jack G. Hanks - Bethel Park PA
James O. Rexroad - Beaver PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 920

200 50AA

Retractable secondary contacts characterized by stationary and movable secondary contacts, one of which stationary and movable contacts is retractably mounted on a drawout circuit breaker, the other of which stationary and movable secondary contact is mounted on a cell into which the drawout circuit breaker is movable, one of the movable and fixed secondary contacts being retractably mounted to enable closing of the stationary and movable secondary contacts before closing of primary terminal means and after opening of the primary terminal means, whereby remote breaker operations, such as metering, may be tested prior to closing of the primary contact means.

4315115, Feb 9, 1982

Feb 19, 1980

6/122408

James O. Rexroad - Beaver PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 920

200 50AA

A drawout circuit interrupter comprising a multipole circuit breaker movable between connected and disconnected positions of incoming and outgoing terminals with corresponding conductor terminals on spaced bus bars, at least one threaded bolt on the circuit breaker engageable with an aperture of a supporting frame, and the bolt having means for holding the bolt in alignment with the aperture as the circuit breaker moves into the connected position.

4121067, Oct 17, 1978

Jan 5, 1977

5/757104

James O. Rexroad - Beaver PA
John P. Majcher - Chippewa Township, Beaver County PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 150

200 50AA

A contact structure characterized by a plurality of pairs of oppositely disposed contact fingers for engaging a terminal stab, biasing means comprising leaf springs at the outer sides of the contact fingers, and bracket means for holding the assembly of the contact finger and biasing means together.

4162467, Jul 24, 1979

Jun 16, 1977

5/806969

Albert R. Cellerini - Beaver PA
Louis N. Ricci - Beaver PA
James O. Rexroad - Beaver PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 7510

335 16

A circuit interrupter with improved current withstand capability characterized by stationary and movable contact means, the stationary contact means comprising first and second conductors being substantially parallel and having an air gap therebetween, the first conductor being pivotally mounted on the second conductor and being in the zone of pivotal movement of the first conductor so that when a fault current of predetermined conditions occurs a magnetic flux between the first and second conductors urges the first conductor toward the movable contact means.

4281227, Jul 28, 1981

Apr 25, 1979

6/033061

James O. Rexroad - Beaver PA
John P. Majcher - Chippewa Twp., Beaver County PA

Westinghouse Electric Corp. - Pittsburgh PA

H01H 920

200 50AA

A drawout switchgear with blow-out prevention means characterized by a circuit breaker movable into and out of a cell, and detachable blockage means for holding the circuit breaker in place.