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 |
| 8178813 | Vacuum switch tube A vacuum switch tube is provided, which includes a first conductive rod and a second conductive rod disposed with a first contact and a second contact respectively. The two contacts are sealed in a vacuum tube body and disposed facing each other. A front end of the ... | 05/15/2012 |
| 7250584 | Contact element comprising rounded slot edges The aim of the invention is to prevent local spikes from being created in a contact element of a contact arrangement used for interrupting a current in a distribution network, said contact element comprising a contact support (8) that encompasses a hollow cyl... | 07/31/2007 |
| 7173208 | Vacuum interrupter A vacuum interrupter for reducing contact resistance and thereby reducing electromagnetic repulsive force between electrodes, is obtained. The vacuum interrupter includes a stationary electrode rod fixedly placed on one closed end of a cylindrical evacuated envelope... | 02/06/2007 |
| 6891120 | Multipolar integrated contact for power switchgear A multipolar integrated contact for power switchgear, its arc proof component, magnetic field generating component and conductive component are set in a container with top opened. Conductive component and magnetic field generating component are mutually combined and... | 05/10/2005 |
| 6891121 | Integrated contact for power switchgear An integrated contact for power switchgear, its arc proof component, magnetic field generating component and conductive component are set in an open container. The conductive component and the magnetic field generating component are mutually combined and set at the ... | 05/10/2005 |
| 6674039 | Contact arrangement for a vacuum interrupter In a vacuum interrupter for circuit breakers, the aim is to reduce the contact pressure force. The contacts of the vacuum interrupter are configured for this purpose such that there is arranged inside an outer contact region, serving the purpose of arc qu... | 01/06/2004 |
| 6479778 | Vacuum switch including windmill-shaped electrodes A vacuum switch includes a pair of windmill-shaped electrodes within a vacuum tube and including windmill portions and contact portions. Each of the windmill-shaped electrodes is arranged such that a component of a magnetic flux parallel to a contact surf... | 11/12/2002 |
| 6326573 | Vacuum switching device In a vacuum switching device having first and second contacts, the first contact only is composed wholly or partly of a combination of at least a high-conductivity material and an arc-resistant material, e.g. chromuim, tungsten or tungsten carbide, and/or... | 12/04/2001 |
| 6163002 | Vacuum circuit interrupter with contact structure including support pins The present invention relates to an interrupter for a circuit breaker for a transmission or distribution line which can distribute and weaken an arc resulting from separation of contacts, can reduce loss of the contacts by the arc, and can improve interru... | 12/19/2000 |
| 6080952 | Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization An electrode arrangement of a vacuum circuit breaker for making and breaking electrical connection. The electrode arrangement has: a pair of contact members which are adopted for making contact to and release from each other by relatively moving to and fr... | 06/27/2000 |
| 6072141 | Vacuum switch contact arrangement A vacuum circuit-breaker contact arrangement includes a pair of contacts each being relatively axially movable from a position of engagement to a position of disengagement to establish a circuit interrupting arc therebetween, at least one of said contacts... | 06/06/2000 |
| 5793008 | Vacuum interrupter with arc diffusing contact design A vacuum circuit interrupter has a coil for generating an axially oriented magnetic field to maintain an electric arc in a diffuse rather than columnar mode upon opening of the interrupter. At least one of two electrodes having abuttable disc shaped conta... | 08/11/1998 |
| 5777287 | Axial magnetic field coil for vacuum interrupter An electrode assembly for a vacuum interrupter is disclosed having a coil structure that produces an axial magnetic field during operation of the assembly. The electrode coil includes at least one arcuate arm having a radial cross section which provides m... | 07/07/1998 |
| 5726406 | Electrical vacuum switch An elongated vacuum cartridge having a cylindrical enclosure blanked off by two end-plates and housing a stationary arcing contact securedly united to one of the end-plates and a movable arcing contact mounted axially and slidingly inside the cartridge th... | 03/10/1998 |
| 5691521 | Vacuum circuit breaker with improved contact assembly A vacuum switch having a fixed side electrode unit and a movable side electrode unit mounted in a vacuum vessel. Each electrode unit includes an arc electrode, an arc electrode supporting member for supporting the arc electrode, a coil electrode and a con... | 11/25/1997 |
| 5495085 | Vacuum interrupter In a vacuum interrupter comprising a disc-shaped stationary electrode and a disc-shaped movable electrode arranged in an evacuated envelope in opposed relationship, a slot or a salient part is formed on the surface of both the electrodes and thereby a pat... | 02/27/1996 |
| 5064976 | Contact configuration for a vacuum interrupter A contact configuration, whose axially opposed contacts have a current-supplying stud, a cup-shaped contact carrier and a contact plate set up on the rim of the contact carrier, a support consisting of material with poor electrical conductivity being prov... | 11/12/1991 |
| 4935588 | Contact arrangement for vacuum switches with axial magnetic fields Contact pieces for vacuum switches with axial magnetic field are designed e.g. as cup contacts with slotting in the same direction which support a diskshaped contact body and have means for the suppression of eddy currents. According to the invention, the... | 06/19/1990 |
| 4885442 | Contact element A contact element for a power switch which, in order to open or close the switch, cooperates with an opposite element, with a transitory rotating electric arc forming between the contact element and the opposite element when the switch is operated. The co... | 12/05/1989 |
| 4871888 | Tubular supported axial magnetic field interrupter A cylindrical coil conductor incorporated in a vacuum interrupter comprises a cylindrical body with a plurality of inclined slits therein defining a plurality of current paths. The coil conductor is uniformly cylindrical to reduce radial magnetic fields, ... | 10/03/1989 |
| 4855547 | Vacuum interrupter A vacuum interrupter in which at least one of a pair of electrodes is provided with first high resistance areas formed passing through from a contact surface to a back side thereof at specified distances from a peripheral edge of the electrode and facing ... | 08/08/1989 |
| 4798921 | Vacuum circuit breaker Disclosed is a vacuum circuit breaker comprising a pair of rods disposed opposite to each other in a vacuum vessel, arc electrodes mounted on the confronting ends of the rods respectively, and a cup-shaped coil electrode mounted on one of the rods and sur... | 01/17/1989 |
| 4755719 | Spark gap switch with jet pump driven gas flow A spark gap switch is disclosed with a pumping system which utilizes flowing gas to replenish the interelectrode region between conductive pulses. The spark gap switch typically consists of a housing enclosing a gas filled chamber in which there are two e... | 07/05/1988 |
| 4717797 | Contact arrangement for a vacuum switching tube For generating an axial magnetic field, conductor loops are disposed behind the contact members in vacuum switching tubes. The terminals of these conductor loops are supported in axial direction by supporting parts having poor electrical conductivity. In ... | 01/05/1988 |
| 4698467 | Electrodes of vacuum switch An electrode structure disposed in a vacuum switch generally comprises a pair of relatively separable electrodes and a pair of contacts provided on the opposing surfaces of the electrodes and surface areas of the contacts are selected to be smaller than t... | 10/06/1987 |
| 4695687 | Contact arrangement for vacuum switches with axial magnetic field, and method for the production of the respective contact pieces Contact pieces for vacuum switches with axial magnetic field are designed, for example, as pot type contacts with codirectional slotting which contain in each instance a disk-shaped contact body of contact material and have an arrangement for the suppress... | 09/22/1987 |
| 4695688 | Electrical contact construction An electrical contact assembly includes a contact, a contact support integrally connected to a first surface of the contact, and an insert disposed proximate a second, arc-supporting surface of the contact for stabilizing an electrical arc. In one embodim... | 09/22/1987 |
| 4617434 | Contact arrangement for a vacuum interrupter An improved contact arrangement for a vacuum interrupter of the type including a conductive jacket adjacent a contact for producing a magnetic field of a predeterminal geometry. The pushrod supporting the contact is divided into two segments which are con... | 10/14/1986 |
| 4588879 | Vacuum interrupter A vacuum interrupter enhances current interruption capability for large current at high voltage. The interrupter includes a coil-electrode creating an axial magnetic field parallel to the direction of arc current passing across an interelectrode gap. The ... | 05/13/1986 |
| 4547640 | Electrical contact structure of a vacuum interrupter An electrical contact structure of a vacuum interrupter wherein a pair of electrical contacts 2 are provided within a vacuum vessel 1 through a pair of contact rods 14 so that one is in contact with the other or away therefrom. The electrical contact 2 co... | 10/15/1985 |
| 4516004 | Vacuum switching tube with a helical current path A vacuum switching tube having an evacuated housing in which contacts are disposed movable relative to each other and an improved current lead for such a vacuum tube are disclosed. The current lead comprises a core and a jacket surrounding the core. The c... | 05/07/1985 |
| 4508945 | Vacuum switching interrupter with annular member and diametrical contact web A vacuum switching arrangement is provided with contacts formed of an annular member and a diametrical web which is connected to a lead-in pin. Arms are provided at each of the contacts for coupling a contact plate to the annular member. The arms are arra... | 04/02/1985 |
| 4504711 | Vacuum switching tube having magnetic field electrodes A vacuum switching tube is disclosed which comprises two cooperating electrodes each of which includes an electrode body connected to a current conductor rod, a support plate and a contact. The electrode body comprises a ring through which a central bridg... | 03/12/1985 |
| 4471184 | Vacuum interrupter A vacuum interrupter has a capacity of breaking high voltage and large electric current, and excellent anti-welding characteristics, and prevents generation of harmful surges by current chopping and reignitions, and particularly prevents surges by multi-r... | 09/11/1984 |
| 4451813 | Vacuum fuse having magnetic flux generating means for moving arc A vacuum fuse includes a pair of metallic spiral elements of different wrapping directions mounted on inner end portions of axially aligned conductor rods. The radial inner ends of spiral elements are electrically connected to respective conductor rods an... | 05/29/1984 |
| 4430536 | Vacuum interrupter A vacuum interrupter comprises a vacuum vessel, at least a pair of electrical conductor rods extending from interior to exterior of the vacuum vessel, and at least a pair of separable composite electrodes respectively connected to the tip of the electrica... | 02/07/1984 |
| 4401868 | Vacuum interrupter with a spacially modulated axial magnetic field contact A vacuum circuit interrupter including axial magnetic field generating means, and arc contact structure comprising means for spacially modulating the axial magnetic field over the area of the contact. This contact structure produces adjacent regions of di... | 08/30/1983 |
| 4334133 | Contact arrangement for vacuum switches A contact arrangement for vacuum switches with coaxially arranged cup contacts, the slotted contact carrier of which is provided with a contact ring, in which, the exposed surface of the contact ring is provided with bevels extending radially inward and o... | 06/08/1982 |
| 4281231 | High tension vacuum switches A high tension vacuum switch, comprising two relatively axially movable switching contacts and two annular electrodes for shielding the open contacts from excessive electric field, in which each shield is associated and electrically coupled with a respect... | 07/28/1981 |
| 4256940 | Gas-blast type circuit interrupter A circuit interrupter comprising a pressure chamber, disposed in fluid communication with an arc extinguishing chamber containing an arc extinguishing fluid, for temporarily storing the arc extinguishing fluid pressure-raised by the arc energy, the high p... | 03/17/1981 |
