Abstract: In a chip carrier for microwave components with an electrically conductive support and with a dielectric substrate, the electrical leads should be able to be impedance-matched in a simple manner. Such a chip carrier should be easy to insert in a microwave circuit and should have a simple construction. A recess (3) in the dielectric substrate (1) is in shape and size to the microwave component(s) to be mounted. The dielectric substrate (1) rests on the electrically conductive support (2). At least one microwave semiconductor component (4) is inserted in the recess (3) of the dielectric substrate (1). The ground terminals (11) of the microwave semiconductor component (4) are connected with the support (2) inside the recess (3). In the connection surface between the dielectric substrate (1) and support (2), the substrate (1) protrudes beyond the support (2).

Abstract: A semiconductor component with a power MOSFET and control circuit for controlling the power MOSFET. Both the power MOSFET and the control circuit have separate semiconductor bodies. The semiconductor body of the control circuit is arranged on one of the main surfaces of the semiconductor body of the power MOSFET. The control circuit is electrically insulated from the MOSFET by an insulating layer and mechanically coupled to the MOSFET by means of a bonding layer. The MOSFET is fastened to a cooling body which serves as a heat sink for the semiconductor component. The terminals of the control circuit and the MOSFET are attached to housing connections with leads.

Abstract: An apparatus for monitoring alternating currents and providing a signal representative of the current. The signals are rectified by a modified full wave rectrifier to provide a power source, a positive signal associated with the positive range of the current, and a positive signal associated with the negative range of the current. The two positive signals serve to preserve the polarity information associated with the current being monitored. The apparatus also provides for combining the negative signals to produce other signals useable by a microprocessor and an analog logic circuit.

Abstract: A primary disconnect assembly for a circuit breaker. The assembly includes a plurality of contact fingers for engaging the terminals of a bus bar assembly. The terminals and fingers are configured such that the terminals each include depressions adapted to accept the contact portions of the contact fingers. This configuration provides at least two contact locations between each contact finger and terminal. Additionally, this configuration increases the force required to slide the fingers relative to the terminals.

Abstract: An apparatus for starting and controlling a motor. The apparatus includes means for monitoring the load current values in each phase of a motor. These means can include an apparatus such as a current transformer. The apparatus utilizes a circuit for modeling a motor and estimating the temperatures of the motor's windings and housing. THe circuit preferably is defined by a programmed microprocessor. The estimated temperatures are based on the load current values and time. These estimated temperatures are then compared to allowable limits and, based on the comparison, the motor is either stopped or allowed to run.

Abstract: LED chip arrangements fabricated monolithically on a semiconductor substrate wafer are to be separated from one another by scribing in such a way that they can be properly arrayed to obtain a tight image-dot grid over several LED chip arrangements. The metallization of the back side of the semiconductor substrate wafer is exposed in the area of a prescribed separation track. Prior to the separation, a depression is etched into the back side of the semiconductor substrate wafer.The process according to the invention is particularly useful in the manufacture of high-resolution LED arrays.

Abstract: An improved connection assembly which saves space and eliminates the need for many conventional fastener means such as nuts and flanges. The assembly includes a receptacle for accepting and engagement member, wherein a small amount of clearance is present between the receptacle and the engagement member. The engagement member includes a slot having two substantially parallel surfaces. A threaded fastener is used to fix the engagement member within the receptacle by passing the fastener through an opening in the bottom of the receptacle and causing the threads of the fastener to cut into and engage the surfaces of the slot.

Abstract: A wire channel bushing mountable between two electrical enclosure boxes. The bushing provides a rain-tight channel for wires passing between the boxes and also provides reliable grounding paths for grounding one box to the other.

Abstract: A contact blade for a circuit breaker configured such that the current path in the blade produces a magnetic field which affects an arc present at the contact of the blade. The configuration of the blade produces a substantially U-shaped current loop in the blade, wherein one leg of the current loop has its main component substantially parallel to, but in the direction opposite to, the main component of the current in the second leg of the loop. When an arc is formed at the contact, the current from the second leg flows through the contact and into an arc, while the current in the first leg of the loop produces a magnetic field which acts upon the arc and forces the arc off of and away from the contact.

Abstract: A pivoting electrical connected useable in a molded case circuit breaker including a pair of contact plates for contacting the circular contact member of a contact carrying arm. The pivoting electrical connection provides at least three contact locations between the contact plates and the circular contact member. The contact locations provide current paths between a first terminal coupled to the contact plates and an electrical contact fixed to the contact carrying arm. The pivoting electrical connection allows the contact on the arm and an electrical contact coupled to a second terminal to be opened and closed.

Abstract: A single piece contact barrier for separating and maintaining the spacing of the contact blades in a circuit breaker. The barrier is also adapted to form an insulating barrier between the contact blades and produce an arc quenching vapor. Under certain circumstances, when one contact and its associated contact are separated, an arc is formed between the contacts. The heat generated by the arc causes the barrier to vaporize in near the arc such that the vapor tends to quench the arc.

Abstract: A rotor lamination for a permanent magnet synchronous machine. The rotor lamination can be used for a two, four or eight pole synchronous machine. The orientation of the permanent magnets determines the number of poles of the machine. The lamination can also include openings adapted to contain conductors used to bring a synchronous motor up to synchronous speed as an induction motor.

Abstract: A panelboard bus bar arrangement. The arrangement includes an insulating base pan which is supported upon a steel base pan. The arrangement also includes three bus bars positioned within the insulating base ban and arranged side-by-side in a parallel manner. The distance between the bus bars is maintained relatively small by using an insulating member which shields and insulates the bus bars from each other. The insulating member includes openings which expose only portions of the bus bars, and dividers which separate adjacent openings and increase the cross surface distance between the openings. By increasing the cross surface distance between openings, arcing is inhibited between the openings.

Abstract: A mechanism for moving and supporting a circuit breaker relative to a bus bar arrangement such that the circuit breaker can be engaged and disengaged from the bus bar arrangement. The mechanism functions to engage and disengage the circuit breaker while also preventing engagement and disengagement of the circuit breaker from the bus bar arrangement while the circuit breaker is not tripped. The mechanism can also function to indicate whether or not the circuit breaker is engaged or disengaged with the bus bar arrangement.

Abstract: A mechanical interlock for interlocking two circuit breakers such that only one of the circuit breakers is ON at a given time. The interlock is also configured such that it permits both circuit breakers to be OFF at the same time. The interlock includes a pivoting rocker arm and a linkage assembly associated with each breaker, wherein the rocker arm and linkage assemblies cooperate to transfer motion between the tie bars of the circuit breakers.

Abstract: A motor operated mechanism for transferring energy to the energy storing mechanism of a circuit breaker of the type which utilizes the energy to close the primary contacts of the circuit breaker. The mechanism includes a motor for driving a cam and follower assembly. The cam and follower assembly cooperate with a linkage to supply rotational motion of an energy delivery shaft, wherein the energy delivery shaft is coupled to the energy storing mechanism of the circuit breaker.

Abstract: A member for reinforcing the juction between the molded half portions of the housing for a molded case circuit breaker. The member is interposed between the portions and extends along the sidewalls of the portions and rest in a channel in each portion adapted to accept the member. The member serves to strengthen the juction between the housing portions.

Abstract: A charging handle assembly for charging the closing springs of a stored energy mechanism which closes the contacts of a circuit breaker. The charging handle has a generally U-shape and is pivotally attached to the circuit breaker cover. The handle is adapted to cooperate with the stored energy mechanism such that the cover and handle are easily removed from the circuit breaker. Additionally, the handle cooperates with the cover and the stored energy mechanism so that energy is transferred to the springs of the mechanism by pumpiing the handle.

Abstract: An apparatus for locking the switch handle of a circuit breaker in the ON or OFF position. The apparatus includes a blocking member mountable on the handle with two screws, a pivoting member pivotable about the screws and a lock for locking the blocking member to the pivoting member. When the blocking member and the pivoting member are locked together, the blocking member is maintained in a position such that it interferes with the circuit breaker housing and prevents the handle from being moved.