STANLEY HOWARD EDWARDS, JR
Pilots at Blue Sage Dr, Raleigh, NC

5615792, Apr 1, 1997

Oct 13, 1994

8/322844

Stanley H. Edwards - Raleigh NC
Richard Marshall - Raleigh NC

Square D Company - Palatine IL

H02G 308, H02G 316

220 38

An enclosure is for a solid state overload relay mechanism or other device. The enclosure includes a mounting plate (12) defining a pair of upwardly extending flanges (14). A housing includes a lower housing (18) and an upper housing. The mounting plate flanges (14) are received through slotted openings (22) defined by the lower housing (18) and define openings (26) for engaging a tab member (28) defined by the lower housing (18). Each tab member (28) is received within and engaged with a corresponding opening (26) defined by a flange (14). A constant pressure is maintained between the tab member (28) and the mounting plate flange opening (26) such that the relative position between the two is fixed. Mounting profiles are defined by the mounting plate (12) and extend away from the lower housing (18) for retrofitting an existing device. The upper and lower housings (18,20) are held in a conventional snap-fit manner.

5532441, Jul 2, 1996

Oct 13, 1994

8/322631

Stanley H. Edwards - Raleigh NC
Richard Marshall - Raleigh NC
Tony R. Robbins - Raleigh NC

Square D Company - Palatine IL

H01H 134, H01H 1502

200 16A

The present invention defines a convertible electrical contact. The convertible contact comprises two pair of movable contacts attached to an actuator which is supported by and enclosed within a housing. The actuator is biased to a first position and is slidably movable to a second position in response to a force applied to the actuator. The movable contacts are attached to the distal ends of a flexible member which is supported at its approximate midpoint by the actuator. The movable contacts are also movable between a first position and a second position as the actuator is moved. A pair of contact cavities are defined by the housing such that the one contact cavity lies on each side of the actuator and the flexible member and movable contacts are contained within the cavities. The housing defines a first pair of access apertures associated with the first position of the movable contacts and a second pair of access apertures associated with the second position of the movable contacts. A convertible stationary contact module which includes a pair of bussing conductors, each with a stationary contact attached at its end is employed to complete the electrical contact.

5966995, Oct 19, 1999

Apr 6, 1998

9/055542

Stanley H. Edwards - Raleigh NC
T. Ray Robbins - Zebulon NC
Barry Edward Powell - Raleigh NC

Square D Company - Palatine IL

G05G 110

74553

An operating shaft which provides compensation for axial and spatial misalignment between a rotatable component mounted within an enclosure and a rotating apparatus generally outside the enclosure is disclosed. The operating shaft has a first end dimensioned to be slidably received within a receiving portion of the rotating apparatus such that the shaft is maintained in a fixed angular position with respect to the rotating apparatus. The shaft is axially slidable with respect to the rotating apparatus such that it will provide compensation for axial misalignment between the rotatable component and the rotating apparatus. The shaft has a second end configured to engage the rotatable component such that rotation of the rotating apparatus will produce a corresponding rotation of the rotatable component. The shaft also has a spatial compensation device which is integrally formed from the shaft between the first and second ends. The spatial compensation device provides compensation for spatial misalignment between the axis of the rotatable component and the axis of the rotatable apparatus.

5341036, Aug 23, 1994

Dec 11, 1991

7/805422

Keith D. Wheeler - Raleigh NC
Stanley H. Edwards - Raleigh NC

Square D Company - Palatine IL

H01H 926

307328

A machine operator control station circuit which uses capacitive proximity switches to replicate the function of mechanical switches used in prior art control stations. A monitoring circuit for monitoring the "on" state of the capacitive proximity switches used in a two hand industrial machine control station is disclosed. The circuit also reduces the chance of unintended operation of the machine being controlled as a result of emitted or conducted radio frequency interference which might be detected by the capacitive proximity switches. An isolation transformer provides an isolated power supply for the monitoring circuit. The monitoring circuit includes a first capacitive proximity switch for detecting the presence of one of the machine operator's hands, and a second capacitive proximity switch for detecting the presence of the other of the machine operator's hands. Each proximity switch has a monitoring circuit for monitoring the length of time the proximity switch remains in the activated or "on" state. The monitoring circuits of the first and second proximity switches are connected together such that both switches must be activated within a set time window in order to activate the machine control circuit.

5735179, Apr 7, 1998

Oct 12, 1995

8/542216

Stanley H. Edwards - Raleigh NC
T. Ray Robbins - Zebulon NC
Barry Edward Powell - Raleigh NC

Square D Company - Palatine IL

G05G 110

74553

An operating shaft which provides compensation axial and spatial misalignment between a rotatable component mounted within an enclosure and a rotating device generally outside the enclosure. The operating shaft has a first end which is dimensioned to be slidably received within a receiving portion of the rotating device such that the shaft is maintained in a fixed angular position with respect to the rotating device. The shaft is axially slidable with respect to the rotating device such that it will provide compensation for axial misalignment between the rotatable component and the rotating device. The shaft has a second end formed to engage the rotatable component such that an rotation of the rotating device will produce a corresponding rotation of the rotatable component. The shaft also has a spatial compensation device which is integrally formed in the shaft between its first and second ends. The spatial compensation device provides compensation for spatial misalignment between the axis of the rotatable component and the axis of the rotatable device.

5500630, Mar 19, 1996

Oct 13, 1994

8/322630

Stanley H. Edwards - Raleigh NC
Richard Marshall - Raleigh NC
Tony R. Robbins - Raleigh NC

Square D Company - Palatine IL

H01H 6702

335132

A solid state overload relay mechanism designed for minimizing the forces required to open an electrical contact associated therewith in the event of a current overload in a protected circuit, and further designed for overcoming residual magnetism in a solenoid initiating the opening of the contact. The contact includes a pair of stationary contacts supported by a base and a pair of movable contact supported by a contact carrier. A latch defines a notch which is normally engaged with a lever. When so engaged, the contact carrier is positioned such that the movable contacts are in contact with the stationary contacts. When the lever becomes disengaged from the latch, the contact carrier is moved and contact between the movable contacts and stationary contacts is broken. The latch is provided with a counterbalance weight to aid in minimizing the force required to return the latch to its original position after the mechanism is tripped. A latch arm extends away from the latch into the path of the lever such that as the lever travels to its extent in an arcuate path, the lever imparts motion on the latch to return it to its initial position, if such has not already occurred.

5565785, Oct 15, 1996

Nov 18, 1994

8/342191

Barry Rodgers - Raleigh NC
Stanley H. Edwards - Raleigh NC
Timothy B. Phillips - Raleigh NC

Square D Company - Palatine IL

G01R 3500

324601

A calibration method for a potentiometer which provides indicia reflecting an accurate indication of actual electrical resistance throughout the resistive range of a particular potentiometer. The indicia includes a number of graduation marks or symbols having a range and spacing unique to the resistive characteristics of the particular potentiometer. The indicia is fixed with respect to a known location associated with the particular potentiometer. The range and spacing of the indicia graduations is derived from measured resistance values at predetermined locations along the resistive member of the particular potentiometer.

5170446, Dec 8, 1992

May 31, 1991

7/707888

Jackie C. Sullivan - Wendell NC
Edwin R. Newell - Wake Forest NC
Keith D. Wheeler - Raleigh NC
Stanley H. Edwards - Raleigh NC

Square D Company - Palatine IL

G02B 600, G02B 636

385 19

The rotational optical switch of the present invention includes a switch enclosure, a light conductor, an optical shutter, a torsion spring biasing the shutter towards a bistable state, and a shutter actuator. The switch enclosure generally encloses the remaining components. The light conductor is received in the switch enclosure and extends between the enclosure and a transceiver, which provides a signal reflective of the state of the optical shutter. The optical shutter is pivotally mounted within the switch enclosure and is bistable between a reflective state which reflects light into the light conductor, and a nonreflective state which does not reflect light into the light conductor. The shutter pivots on arms to either end of a support cylinder which have knife edges. The shutter actuator is pivotally connected to the optical shutter by the torsion spring to cause the optical shutter to snap between the bistable states.

5047601, Sep 10, 1991

Jan 25, 1990

7/470026

Stanley H. Edwards - Raleigh NC
Dwight D. Edwards - Asheville NC
James B. Warren - Arden NC
Jackie C. Sullivan - Wendell NC

Square D Company - Palatine IL

H01H 3524

200 81R

A pressure responsive switch apparatus comprising a housing including a wall defining a passageway having an end adapted to communicate with a source of fluid under pressure, a switch supported by the housing, an actuator which is movably supported by the housing and which includes an end extending into the passageway, an actuator for actuating the switch in response to movement of the actuator, and a cup-shaped member detached from the actuator and located within the passageway and between the actuator and the end of the passageway for sealingly engaging the wall and moving the actuator away from the end of the passageway in response to pressure from the fluid source.