Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7902480 | Vacuum insulated switchgear A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three positions, the switchgear being a double-break three-position type sw... | 03/08/2011 |
| 7902479 | Vacuum switchgear A reliable, compact vacuum switchgear is provided at an inexpensive cost. The vacuum switchgear comprises a switch 1 having a fixed electrode 12 and a movable electrode 13 connectable to and disconnectable from the fixed electrode 12, ano... | 03/08/2011 |
| 7790998 | Vacuum insulated switchgear A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three positions, the switchgear being a double-break three-position type sw... | 09/07/2010 |
| 7679022 | Vacuum insulated switchgear A vacuum insulated switchgear comprising a case having a switch section, a bus-bar section and a cable section, each being partitioned by an earthed metal plate, a vacuum double break three point switch disposed in the switch section and having breaking and disconne... | 03/16/2010 |
| 7579571 | Visible open indicator A visible open indicator for high voltage vacuum interrupters and switches, which use a vacuum bottle having a high voltage contact and an actuating element that opens and closes the contact, is provided. The visible open indicator includes: an actuating mechanism t... | 08/25/2009 |
| 7534976 | Vacuum recloser A vacuum recloser including a first connection section adapted to connect to a first electrical conductor; a second connection section mechanically connected to the first connection section; and an arm connected between the first and second connection sections. The ... | 05/19/2009 |
| 7501598 | Connector system for an insulated switch with provision for grounding and visible break A connector system for a high voltage vacuum switch which includes: a voltage source connector; a load connector; a first contact in a vacuum bottle; and a second contact connected in series with the first contact, wherein the second contact is external to the vacuu... | 03/10/2009 |
| 7425687 | Vacuum insulated switchgear A vacuum insulated switchgear comprising: a vacuum container; a vacuum insulated switch having a movable contact connected to a movable electrode and a fixed contact connected to a fixed electrode for interrupting and closing current; an operating rod connected to t... | 09/16/2008 |
| 7332906 | Vacuum circuit interrupter including circuit monitoring leakage or loss of vacuum and method of monitoring a vacuum interrupter for leakage or loss of vacuum A method monitors a vacuum interrupter for leakage or loss of vacuum. The vacuum interrupter includes a line side, a load side and separable contacts electrically connected therebetween. The line side has a line side voltage and the load side has a load side voltage... | 02/19/2008 |
| 7323652 | Gas insulated switchgear The gas insulated switchgear includes a rotary shaft which penetrates a pressure vessel is connected with a moving part which is housed in the pressure vessel by way of a lever, and is connected to the moving part, and brackets which support the rotary shaft and are... | 01/29/2008 |
| 7310221 | Switching installation provided with an electrically insulating barrier A switching installation (5) having a circuit breaker (12), which is connected to a cable connection (33), and optionally a disconnector (14) for making or breaking a conductive connection between the cable connection (33) and a ra... | 12/18/2007 |
| 7304262 | Vacuum encapsulation having an empty chamber A vacuum assembly including a vacuum interrupter may be sealed with a compliant material and/or rubber plugs, so that a cavity is created and maintained within the assembly for use with a current exchange housing and/or bellows, during operation of the vacuum interr... | 12/04/2007 |
| 7274550 | Single phase control and protection system of high voltage with dry insulation A protection system and single-phase control of high voltage with close loop dry insulation is provided. A detector detects the voltage through the influence of the electrical field in conductors, insulators and breakers, mainly, turning the field into an electronic... | 09/25/2007 |
| 7244903 | Vacuum switchgear A main circuit switching unit and an isolator are accommodated in a vacuum container. A first conductor and a main circuit conductor are arranged to extend in and out of the vacuum container. A movable electrode of the main circuit switching unit is connected to the... | 07/17/2007 |
| 7239492 | Control system for at least one vacuum interrupter gap A control system for at least one vacuum interrupter gap in a high-voltage switching device includes at least one non-reactive control resistor disposed in parallel with the vacuum interrupter. The non-reactive control resistor merges concentrically onto the vacuum ... | 07/03/2007 |
| 7186942 | Three-position vacuum interrupter disconnect switch providing current interruption, disconnection and grounding A vacuum circuit interrupter includes a line conductor, a vacuum interrupter, a load conductor, a ground conductor and an operating mechanism. The vacuum interrupter includes a fixed conductor and a vacuum envelope containing a fixed contact and a movable contact mo... | 03/06/2007 |
| 7098418 | Vacuum circuit breaker, vacuum circuit breaker contact slow closing method, and contact erosion measuring method and contact gap length setting method using that slow closing method An adjusting bolt is screwed into a nut attached to a dolly, and is disposed such that a central axis thereof is parallel to a closing and opening direction of a contact. A lever is attached to a shaft. An electrically-insulating rod is coupled to a first end of the... | 08/29/2006 |
| 7075027 | Spring-charged mechanism assembly employing two trunnion members moveable in different planes and circuit interrupter employing the same A mechanism assembly is for a vacuum circuit interrupter including a vacuum housing including a stationary contact and a moveable contact, and an operating mechanism including a drive rod. The mechanism assembly cooperates with the drive rod to open and close the co... | 07/11/2006 |
| 7053327 | Apparatus and method for use in circuit interrupters The present invention provides improved and more efficient methods and apparatus for maintaining and/or adjusting over-travel gaps and contact wipe portions in operating rod assemblies of circuit interrupters. According to one embodiment of the invention, a circuit ... | 05/30/2006 |
| 7038157 | Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker Vacuum circuit breaker, provided with a casing, in which a fixed and movable contact member are each attached to a supporting contact rod and supported therein in a mutually electrically isolated manner, and a coil coaxial to the casing and surrounding the contact m... | 05/02/2006 |
| 7038912 | High-power switchgear with cooling rib arrangement The high-power switch (1) according to the invention, with at least one switch pole (2) for guiding and switching an electric current which flows in one current flow direction when the switch is in the closed state, with the at least one switch pole ( | 05/02/2006 |
| 7019228 | Method for controlling a displaceable electrical switching module The invention relates to a method for controlling an electrical switching module which can be displaced between an entry position and an exit position. The switching module comprises switching contacts of vacuum switching tubes; an isolating element which can be als... | 03/28/2006 |
| 7015410 | Drive device for a switching tube with a fixed and movable contact part The invention relates to a drive device for a switching tube with a fixed and movable contact part, said movable contact part being controlled by a plastic switch rod (SS) which remains substantially unstressed when the contact parts are connected or disconnected an... | 03/21/2006 |
| 6951993 | Vacuum switch A vacuum switch comprises a vacuum container, a grounding switch and a load switch disposed in the container, and an external connection conductor disposed in the vacuum container and to be connected electrically inside and outside the vacuum container, and it is ch... | 10/04/2005 |
| 6946614 | Circuit breakers A circuit breaker includes an interrupter coaxial with a current sensor or transformer, the combined assembly being encapsulated within solid dielectric material and supported by an earthed tube mounted on an earthed housing. Detection by the sensor of a current ove... | 09/20/2005 |
| 6930271 | Circuit interrupter including linear actuator and manual pivot member A power circuit interrupter includes a housing having an opening, one or more vacuum interrupters including separable contacts, and an operating mechanism, supported by the housing, adapted to open and close the contacts. A linear actuator cooperates with the operat... | 08/16/2005 |
| 6927356 | Enclosed switchgear In a switchgear, oscillation of a moving current-carrying shaft and a moving contact of a vacuum valve is minimized, offset load on the contact surface is reduced, and friction the portion supporting the moving current-carrying shaft is reduced. A vacuum valve is di... | 08/09/2005 |
| 6927403 | Illumination system that suppresses debris from a light source There is provided an illumination system for wavelengths of ≦193 nm. The illumination system includes an object plane, a plane conjugated to the object plane, a first collector between the object plane and the conjugated plane, and a second collector after the con... | 08/09/2005 |
| 6911610 | Medium voltage switching device A medium voltage switching device includes an electromagnetic actuation chain and a power supply which provides electric power to the electromagnetic actuation chain. The power supply includes at least a first power supply device which is electrically connected to a... | 06/28/2005 |
| 6897396 | Switch gear and method of manufacturing thereof By molding a plurality of vacuum valves (7), (13) having differing functions together with an input member (3) and an output member (21) en bloc in a resin layer (23) to form a switch gear (1), the present invention seeks to... | 05/24/2005 |
| 6881917 | Vacuum switchgear Disclosed is a vacuum switchgear wherein a ground switch, a load switch, and an external connecting conductor to be electrically connected with the inside and outside of the vacuum container are provided in a vacuum container; the ground switch and the external conn... | 04/19/2005 |
| 6852939 | Electrical circuit interrupting device A recloser for use with an electrical power distribution system including a circuit interrupter including a primary contact and a movable contact movable relative to the primary contact between a closed position allowing current to pass through the circuit interrupt... | 02/08/2005 |
| 6794596 | Electrical circuit interrupting device A circuit interrupting device for use with an electrical power distribution system including a circuit interrupter having a closed position allowing current to pass through the circuit interrupter and an open position preventing current from passing through the circ... | 09/21/2004 |
| 6759617 | Vacuum circuit breaker A vacuum circuit breaker includes a plurality of switching mechanism units having movable contacts and stationary contacts for connecting/breaking an electrical circuit between an electric source and an electric load, respectively, and disposed in a lengthwise direc... | 07/06/2004 |
| 6753493 | Electrical circuit interrupting device A circuit interrupting device for use with an electrical power distribution system, comprising a circuit interrupter that includes a primary contact and a movable contact movable relative to the primary contact between a closed position allowing current to pass thro... | 06/22/2004 |
| 6747232 | Vacuum contactor In a vacuum contactor, the armature is initially deflected from an armature rest position through an initial movement distance, and then through a driving movement distance to an armature operating position when a pull-in current is applied to a drive coil. An opera... | 06/08/2004 |
| 6686553 | Three-phase encapsulated high-voltage circuit breaker for outdoor use A three-phase encapsulated high-voltage circuit breaker for outdoor use, whose interrupter units are arranged in a tubular switch housing which is arranged horizontally. Phase connections of the interrupter units are passed vertically and together through... | 02/03/2004 |
| 6653918 | Operating mechanism for autorecloser with series disconnector An operating mechanism for an autorecloser provides an improved form of mechanical interlock between the circuit breaker element (3) of an autorecloser and a disconnector (2) in electrical series with it A shaft (82) transmits linear motion between the ci... | 11/25/2003 |
| 6649854 | Vacuum contactor with movable guide element A vacuum contactor includes a stationary contact and a moving contact, which can be moved in order to produce a current-carrying connection. In order to guide the moving contact during its movement in the enclosure, at least one guide element, which can b... | 11/18/2003 |
| 6600124 | Safety interlock between a vacuum interrupter and a disconnect switch An interlock mechanism ensures that a first switch does not switch to a first position unless a second switch is in a second position and that the second switch does not switch from the second position while the first switch is in the first position. The ... | 07/29/2003 |
