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| Number | Title | Issue Date |
| 7738230 | Nonvolatile status indicator switch A non-volatile status indicator switch is provided. In one embodiment, the invention relates to an aircraft electrical system including a fault detection circuit coupled to a relay, and a fault indicator circuit coupled to the fault detection circuit and to a contro... | 06/15/2010 |
| 7385153 | Electrical switching apparatus and trip bar therefor A trip bar is provided for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, an operating mechanism, and a number of accessories installable within the housing. At least one of the accessories has an actuator, such... | 06/10/2008 |
| 7352265 | Manual trip control method and arrangement for multiple circuit interrupters A manual trip control method and arrangement is provided to manually trip a plurality of circuit interrupters. Specifically, where the circuit interrupters include magnetic-actuator-driven vacuum interrupters including permanent magnets that hold the contacts of the... | 04/01/2008 |
| 7232971 | Circuit breaker A circuit breaker includes a shell, a movable press strip, a metal strip, a C-shaped plate spring, and three conductors. A first and a second conductor are inserted through the bottom of the shell, respectively have an upper end extending up in the shell, with a fir... | 06/19/2007 |
| 7209330 | Reset lockout for circuit interrupting device Resettable circuit interrupting devices, such as GFCI devices, that include a reset lock-out mechanism are provided. The reset lock-out mechanism prevents the resetting of electrical connections between input and output conductors if the circuit interrupting mechani... | 04/24/2007 |
| 7148585 | Power grid backfeed protection apparatus A circuit breaker that functions like a double pole double throw (DPDT) switch is used to isolate the commercial power grid from an external power source. When in the “on” position the circuit breaker serves as a main power input circuit breaker allowing power f... | 12/12/2006 |
| 7139165 | Computer system having a local or remote low-voltage power button A computer system according to a preferred embodiment of the invention may have either a local or a remote low-voltage power button. The arrangement is freely reconfigurable by the end user. A socket or plug is accessible from the exterior of the enclosure of a main... | 11/21/2006 |
| 7098630 | Control means and methods for a transistor switch circuit The invention relates to a control means and method for a transistor switch circuit controlling a power supply circuit for providing electric power to a load, comprising: a power supply stage having an LC circuit with an inductor, and a control stage having an estim... | 08/29/2006 |
| 6904705 | Shoe with permeable and breathable upper that covers at least partially an impermeable sole that is rendered breathable A shoe with permeable/breathable upper that covers, at least partially, an impermeable breathable sole, comprising a sole layer made of rubber connected internally to a wraparound upper made of synthetic or natural leather, the sole layer having nubs that pass throu... | 06/14/2005 |
| 6774803 | Fault trip indicator and maintenance method for a circuit breaker A fault trip indicator for use with a circuit breaker connected to protect an electrical line comprises a current transformer coupled to the electrical line to produce a current signal which varies as a function of the current level in the electrical line. A thresho... | 08/10/2004 |
| 6667868 | Thermal shutdown control for multi-channel integrated circuit boards A multi-channel power shut-down circuit that includes a plurality of channel disabler circuits formed on a common substrate where each of the channel disabler circuits includes a first combinational logic and a second combinational logic having an input c... | 12/23/2003 |
| 6487057 | Ground fault current interrupter/arc fault current interrupter circuit breaker with fail safe mechanism A circuit breaker includes a pair of separable contacts forming a pole, an operating mechanism for operating the electrical contacts, an electronic trip circuit responsive to currents flowing through the pole for operating the operating mechanism in respo... | 11/26/2002 |
| 6351436 | Field enhancing magnetic pole for magneto-optical recording and reproducing device A flying optical head assembly for a magneto-optical data storage device includes a slider body mounting an optical element having a narrowed optical aperture extending through a location of the slider body, a recessed region surrounding the location pass... | 02/26/2002 |
| 6342995 | Lighted escutcheon plate for power distribution equipment A lighted escutcheon plate for power distribution equipment includes an escutcheon plate in electrical communication with a power distribution circuit; and a plurality of LED bulbs, generally green or alternatively red, mounted on the escutcheon plate, so... | 01/29/2002 |
| 6324043 | Residual current detector with fail safe lockout device This invention provides a residual current detector comprising a trip circuit; a magnetic lock assembly including a solenoid that operates in response to a signal from the trip circuit, causing movement of an operating member, with the magnetic lock furth... | 11/27/2001 |
| 5953192 | Solid state control device for an anti-pump circuit A solid state control system for controlling activation signals to circuit breaker electro-mechanical close coils is disclosed. The system employs a novel arrangement of a silicon controlled rectifier (SCR) and other electronic components, such as a FET, ... | 09/14/1999 |
| 5828041 | Power supply cut-off apparatus of a microwave oven A microwave oven includes a housing formed by relatively separable first and second panels. Electric switches are mounted on the first panel and are connected to respective wires of the power cord by the oven. Each switch includes a movable contact which ... | 10/27/1998 |
| 5819645 | Baler feed gate safety sequencing circuit A baler feed gate safety sequencing circuit which prevents successive operation of a compactor baler with the feed gate in the open position. The circuit requires the raising and lowering of the feed gate after each compaction cycle for operation of the b... | 10/13/1998 |
| 5517381 | Circuit breaker counter indicator A counter indicator for circuit breakers maintaining a running count of the number of times that a circuit breaker has been tripped and providing a visual indication of a tripped condition. The counter indicator employs time delay circuitry so as to allow... | 05/14/1996 |
| 5500781 | Digital circuit interrupter with multiple accessory function An integrated circuit breaker having several accessory functions along with automatic overcurrent protection, allows selection between the various accessory functions in different combinations. Separate switches are arranged on the circuit breaker to allo... | 03/19/1996 |
| 5418678 | Manually set ground fault circuit interrupter An improved ground fault circuit interrupter (GFCI) device requires manual setting following initial connection to an AC power source or termination of a power source interruption. The improved GFCI device utilizes a controlled switching device which is r... | 05/23/1995 |
| 5177657 | Ground fault interruptor circuit with electronic latch A ground fault interruptor circuit interrupts the flow of current to a pair of lines extending between a source of power and a load. The ground fault interruptor circuit includes a circuit breaker comprising a normally open switch located in one or both o... | 01/05/1993 |
| 5132865 | Ultra high-speed circuit breaker with galvanic isolation A circuit breaker comprises a static switch electrically connected in series with a disconnecting switch having an operating mechanism with a handle to close and open a system of main contacts. A voltage sensor ocmprises an electromagnet with a moving cor... | 07/21/1992 |
| 5109316 | Multiple outlet receptacle with circuit breaker and continuity switch mechanisms A multiple outlet receptacle has a molded insulating body which includes multiple groups of internal contact elements disposed in the body and defining multiple electrical outlets adapted for receiving multiple outlet plugs. The receptacle also has a circ... | 04/28/1992 |
| 5077916 | Sole for sports or leisure shoe The sole comprises two superposed layers made of different materials: a) a bottom layer (1) of a material which is firm and strong, and provided with projections for bearing against the ground such as studs (13, 14) disposed around the periphery of the so... | 01/07/1992 |
| 4918562 | Power controller with voltage-controlled circuit breaker A power controller comprises a manually-on circuit breaker having an electrically-actuatable trip coil which enables the circuit breaker to be tripped-off electrically. The circuit breaker is connected to a voltage source and provides operating voltage to... | 04/17/1990 |
| 4833297 | Improved arrangement in steam iron protection circuits A steam iron having a protection circuit which is located in a detachable back cover. The back cover can be detached from the iron to allow substitution of an inoperative protection circuit.... | 05/23/1989 |
| 4758919 | Sectionalizer for spur lines Fault currents in the phases of a three-phase supply are detected by transformers 28 in respective phase links 14 and are counted by associated circuits 24 when any one of the circuits 24 reaches a predetermined count level, or when there is a fault condi... | 07/19/1988 |
| 4714976 | Multipole breaking device with remote control A remotely controlled circuit breaker or switch comprises two breaking poles adjoining a remote control unit with an electromagnet, and a toggle for manual operation of the contacts. The remote control unit comprises a selector switch for switching into t... | 12/22/1987 |
| 4698717 | Electrical safety drop disconnect An electrical safety disconnect device inserted in overhead power wires to prevent live broken wires from contacting the ground or persons in their vicinity. The device takes the form of a male-female plug combination that automatically separates when the... | 10/06/1987 |
| 4631624 | Time delay undervoltage release A time delay undervoltage release for an electric circuit breaker causes the circuit breaker to trip when the control voltage drops below an acceptable level and prevents the breaker from being closed until the control voltage rises to a predetermined lev... | 12/23/1986 |
| 4463401 | Interface circuit apparatus A remotely controlled circuit control device has first and second load contact assemblies movable into circuit engagement and circuit disengagement positions relative to one another in which one load contact assembly is operatively connected to a solenoid... | 07/31/1984 |
| 4451865 | Electrical cutout for under voltage or power loss conditions This disclosure relates to methods and apparatus for providing in a tool, appliance, or other electrically operated device the safety feature of requiring that the trigger or ON-OFF switch be in or returned to the OFF position before the tool will respond... | 05/29/1984 |
| 4446501 | Circuit control system A remotely controlled circuit control device has first and second load contact assemblies movable into circuit engagement and circuit disengagement positions relative to one another in which one load contact assembly is operatively connected to a solenoid... | 05/01/1984 |
| 4333122 | Minimum size, integral, A.C. overload current sensing, remote power controller An A.C. overload current sensing, remote power controller of minimum size and weight and integral construction. Current rate sensing wound toroids are used that are small enough to fit around the line terminal studs without having to enlarge the prior ins... | 06/01/1982 |
| 4327397 | Computer power/temperature protector A computer power/temperature protector is provided. A control and disconnect circuit is responsive to a power interruption to disconnect power from a computer to which the protector unit is connected in-line, and thereafter responsive to a reset signal to... | 04/27/1982 |
| 4323943 | Protection circuits A protection circuit suitable for use with electronic test equipment contains a switch which is open circuited if an overload condition is detected. The opening of the switch isolates the overload detector from the applied overload thereby allowing the de... | 04/06/1982 |
| 4316230 | Minimum size, integral, A.C. overload current sensing, remote power controller with reset lockout A reset lockout addition to an A.C. overload current sensing, remote power controller of minimum size and weight and integral construction. Current rate sensing wound toroids are used that are small enough to fit around the line terminal studs without hav... | 02/16/1982 |
| 4185208 | Anti-pump circuit breaker The circuit breaker is taught with an anti-pumping control circuit. If the circuit breaker closes on a fault and quickly reopens without the closing switch being either mechanically or electrically released in the interim, reclosure of the circuit breaker... | 01/22/1980 |
| 4183057 | Actuating system for a rental television A television system specially constructed for rental use. Such a television system generally includes a key actuated switching system. When the key actuated system is turned on, it enables the televsion to be normally operated. Often, however, there is a ... | 01/08/1980 |
