Abstract: An appliance assembly includes an appliance and an appliance member. The appliance includes a wall defining a plurality of holes. The appliance member is carried by the appliance. The appliance member includes a housing which includes a snap-fit arrangement coupled with the appliance. The snap-fit arrangement includes a first plurality of ears and a second plurality of ears, the first and second plurality of ears snap-fittingly engaging the plurality of holes.

Abstract: A heater element for use in a circuit breaker whose initial shape can be varied to achieve various trip ratings for different circuit breakers. The material composition of the heater element and the bimetal strip indirectly heated by the heater element are kept the same. The electrical resistance presented to current passed through the heater element is varied by varying the shape of the heater element. The shape of one heater element relative to another heater element varies according to one geometric parameter. The geometric parameter may be surface geometry, thickness, or cross-sectional area.

Abstract: An arrester includes a dielectric housing that has a body portion that includes a substantially cylindrical wall with opposing first and second ends that form inner cavity therebetween. A support mounting bracket portion is formed as a unitary, one-piece extension of the body portion and extends laterally from said second end. The housing has sufficient rigidity to maintain the bracket portion in a position substantially perpendicular to the body portion. At least one varistor element is received in the inner cavity of the housing.

Abstract: A switch structure for a heating device having a passage formed within the main body of the structure, an air inlet, a main flame air outlet, a second air outlet and a thermocouple insertion hole connected to the passage being formed on the main body, and a manual control rod having a stopper being provided within the passage of the main body, two through holes being formed corresponding to the main flame air outlet and the second flame air outlet; characterized in that the main flame air outlet, the thermocouple insertion hole and the second flame air outlet have upward direction openings of similar direction, and the main flame air outlet and the air inlet are located on the same axis, and a stopper is suitably mounted between the main flame outlet and the air inlet, thereby the lighting rod of the switch, the thermocouple and the second air tube are extended in same direction to form an easy assemble, safe and stable switch for the heater.

Abstract: A high voltage, current limiting device is connected in series with a high voltage power source and a protected load to interrupt current for an over-current condition [Typically 50 kA]. The current limiting device includes a current sensor/isolator and a switch connected in series. A current limiter, which may include a fuse or polymer current limiting material, is connected in parallel to the current sensor/isolator. The current sensor/isolator includes a pair of electrically insulated supports secured to a plurality of support rods to maintain the insulated supports at a predetermined fixed spacing to support an expulsion fuse. The expulsion fuse link includes a pair of copper conductors of adequate current carrying capability that are attached to ends of a main weak link fuse. A pair of coil springs hold the weak link fuse under tension to repel the conductors apart when the weak link fuse melts open during an over-current condition.

Abstract: Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, which has an electrically grounded tank or casing. A surge arrester assembly includes a housing, and a draw-out surge arrester having first and second insulatively spaced electrical contacts, with the draw-out surge arrester being removably disposed in the arrester housing. The arrester housing has first and second insulatively spaced metallic end members, with the first metallic end member functioning as a mounting structure for mounting the arrester housing in a tank opening, and as an electrical contact which automatically connects the first electrical contact of the draw-out surge arrester to the grounded tank of the apparatus to be protected. The second metallic end member of the housing electrically connects the second electrical contact of the draw-out surge arrester to an electrical circuit point within the tank to be protected against voltage surges.

Abstract: An electric switch for thermal overload protection includes a meltable pellet containing a pool of mercury which establishes electrical contact between two lead-in wires. When the pellet is heated to its melting point, the mercury becomes unconfined and the circuit is opened.