Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7545245 | Manual opening device and electrical switching apparatus employing the same A manual opening device is for an electrical switching apparatus, such as a synchronous circuit breaker, including a housing having an opening, a plurality of pole mechanisms each comprising separable contacts, and at least one operating mechanism including a number... | 06/09/2009 |
| 7355497 | Reset lockout and trip for circuit interrupting device This invention relates to a circuit interrupting device having a trip button for disconnecting a load from a source of electrical power and a reset button for resetting the device after it has tripped. When the device is operating in its reset state, a source of ele... | 04/08/2008 |
| 7330091 | Electronic type protective relay An electronic type protective relay integrates the mechanical structure into a single operation rod to protect electric machinery. The electronic type protective relay includes an insulating shell, a tripping rod, a magnetic-force device and an operation device. The... | 02/12/2008 |
| 7064634 | Shock resistant actuators for a circuit breaker A linkage for a solenoid actuated circuit breaker operating mechanism is provided. The operating mechanism includes a trip device and a close device. Either the trip device or the close device is coupled to a solenoid, by an ultra-lightweight connection member. The ... | 06/20/2006 |
| 6975191 | Resettable switching device A resettable switching device, e.g. a relay, comprises a fixed contact (18) and a movable contact (28). A solenoid (12) is fixed relative to the fixed contact and a ferromagnetic plunger (20) carries the movable contact. A spring (24 | 12/13/2005 |
| 5982258 | Tripping device for a circuit breaker equipped with an electrical fault indication The trip bar is sub-divided into a first actuating part associated to the trip rod of the actuator and a second actuating part operating in conjunction with the indicating device. A mechanical coupling link is arranged between the two actuating parts bein... | 11/09/1999 |
| 5886603 | Electrically controlled tripping mechanism A detent mechanism comprising a support member having a fixed seating member comprising opposite sides; a first spring for exerting a first spring force, disposed between one side of the fixed seating member and a first sliding member, further comprising ... | 03/23/1999 |
| 5815363 | Circuit breaker A circuit breaker comprising a switch for controlling the connection of a load to a power source, the switch having a fixed contact and a movable switch contact supported on a pivotable switching member and resiliently biased away from the fixed contact. ... | 09/29/1998 |
| 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 |
| 5224590 | Circuit interrupter having improved operating mechanism A circuit breaker having a contact movable between open and closed positions, includes a closing spring assembly having a closing spring and first and second brackets. The closing spring assembly is chargeable when in a reset position in which the first b... | 07/06/1993 |
| 5162967 | Automatic sectionalizer The sectionalizer comprises a means that automatically sections a circuit under preset conditions, for the purpose of insulating and signaling the line defect, when said sectionalizer is mounted between some contacts fixed to an insulating support. The se... | 11/10/1992 |
| 4912440 | Protective coating on electronic circuit breaker component Electronic circuit breaker components are selectively coated with zinc and tin compounds to protect the components from the environment and to promote lubricity. Selected components within the operating mechanism, actuator and crossbar assemblies are coat... | 03/27/1990 |
| 4901045 | Secondary circuit breaker for distribution transformers A circuit breaker having a fixed current contact (12,14), a movable current contact (16,18), a mechanism (20,22,54,66,68) for displacing the movable current contact (16,18) between a circuit closing position and a circuit opening position, and a latching ... | 02/13/1990 |
| 4855862 | Recloser undervoltage lockout mechanism In a high voltage circuit interrupter (30) or recloser, an auxiliary undervoltage lockout mechanism (300) provides a backup lockout means to deenergize circuit contactor closing solenoid (78). Auxiliary undervoltage lockout device (300) provides a backup ... | 08/08/1989 |
| 4825329 | Earth leakage circuit breaker with plug actuated resetting breaker An earth leakage circuit breaker has a socket for connecting an appliance to be protected. A plug inserted in the socket depresses a plunger (34), tilting a cam (38) which acts through a striker (42) to momentarily close a relay, thus resetting the circui... | 04/25/1989 |
| 4631507 | Variable composition switching device A variable composition switching device which comprises one basic modular component incorporating at least one controllable switching device, one direct switching control modular component and/or one indirect switching control modular component. This indi... | 12/23/1986 |
| 4625189 | Circuit recloser with actuator for trip, close and lock out operation In a high voltage circuit interrupter switch or recloser a single multi-function control actuator is connected to a trip bar for tripping contact operating linkage to effect opening of one or more movable contacts. The control actuator includes a spring b... | 11/25/1986 |
| 4595895 | Circuit breaker A circuit breaker characterized by a roller guide member, 1a, provided on the inside wall of an upper part of the case 1. The roller quite member, 1a, has a curved shape designed to form or smooth curved path, 100, in cooperation with the roller receiving... | 06/17/1986 |
| 4288767 | Automatic magnetic switch An automatic magnetic switch comprising an over-load or short-circuit protection means and a manual magnetic switch installed in the switch casing. A magnetic control means is contained in a sub-casing of the switch. The manual magnetic switch has a condu... | 09/08/1981 |
| 4048607 | Circuit breaker A circuit breaker has a bistable snap-acting mechanism including a bimetallic arm which renders the circuit breaker capable of actuation by either ambient temperature changes or temperature changes generated internally, as by an excessive electric current... | 09/13/1977 |
| 3970976 | Circuit breaker with center trip position A circuit breaker comprising a case and a stationary contact mounted within said case. A movable contact is movable into and out of engagement with the stationary contact. An operator is pivotally mounted within said case and a collapsible linkage interco... | 07/20/1976 |
