Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7334319 | Method for opening the contact gap of a vacuum interrupter The aim of the invention is to improve the breaking ability of vacuum interrupter in the medium- and high-voltage range. Said aim is achieved whereby the contact pieces which may be displaced relative to each other are moved with a relatively high speed during a fir... | 02/26/2008 |
| 7313964 | Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device A method for detecting a high pressure condition within a high voltage vacuum device includes detecting the position of a movable structure such as a bellows. The position at high pressures can be detected optically by the interruption of a light beam reflected by a... | 01/01/2008 |
| 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 |
| 7225676 | Method and apparatus for the detection of high pressure conditions in a vacuum switching device A method for detecting a high pressure condition within an interrupter includes measuring the intensity of light emitted from an arc created by contacts within the interrupter, comparing the measured intensity with a predetermined value, and providing an indication ... | 06/05/2007 |
| 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 |
| 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 |
| 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 |
| 7041929 | Contact arrangement for a vacuum switch tube The invention relates to a contact arrangement for a vacuum switch tube for low-voltage power switches. The aim of the invention is to reduce the contact force required to control short circuit currents. To this end, a twin-contact contact arrangement is used wherei... | 05/09/2006 |
| 6965089 | Axial magnetic field vacuum fault interrupter An improved vacuum interrupter is disclosed. The vacuum interrupter includes a ring-shaped structure placed between a contact support structure and an electrical contact associated with the contact support structure. A resistivity of the ring-shaped structure is hig... | 11/15/2005 |
| 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 |
| 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 |
| 6870118 | Contact for vacuum interrupter, and vacuum interrupter using same A contact for a vacuum interrupter, includes: 1) a contact plate; and 2) a contact carrier. The contact carrier includes: a first end face which is fitted with the contact plate, and a peripheral face which is formed with a slit portion in such a manner as to form a... | 03/22/2005 |
| 6864456 | Vacuum interrupter chamber with ring-shaped insulator A new vacuum switching chamber is intended for power breakers in the low-voltage range and is distinguished by a compact form with a small physical height and a high switching capacity. Its enclosure includes a plate-like power current connection, a cylindrical wall... | 03/08/2005 |
| 6765168 | Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker An electrode of a vacuum circuit breaker has a cup member and a contact. The cup member has an opening and a periphery which is formed with a slit so as to form a coil section. An electric current flows in the coil section so as to generate a longitudinal magnetic f... | 07/20/2004 |
| 6765167 | Electric contact member and production method thereof An electric contact member has a texture wherein fire proof metal powder having the form of a flat plate is diffused in a matrix of a highly conductive metal. The flat surface is oriented in one direction and the surface in parallel with the flat surface of the fire... | 07/20/2004 |
| 6762388 | Vacuum cartridge for an electrical protection apparatus such as a switch or circuit breaker The present invention relates to a vacuum cartridge for an electrical protection apparatus such as a switch or a circuit breaker, said cartridge comprising an enclosure of substantially cylindrical shape closed by two end plates, two contacts extending axially insid... | 07/13/2004 |
| 6747233 | Non-linear magnetic field distribution in vacuum interrupter contacts Novel interrupter assembly designs utilizing saturable magnetic materials are disclosed and described. In certain embodiments of the invention the saturable magnetic materials are placed in the interrupter contact body and/or electrode. The inclusion of saturable ma... | 06/08/2004 |
| 6740838 | Contact for vacuum interrupter and vacuum interrupter using the contact A contact and a vacuum interrupter using the contact. The contact includes a hollow cylindrical contact carrier and a contact plate disposed on one of the axial end faces of the contact carrier. First slits and second slits extend from the one of the axial end faces... | 05/25/2004 |
| 6686552 | Contact for vacuum interrupter, and vacuum interrupter using same A contact for a vacuum interrupter, includes: 1) a contact plate; and 2) a contact carrier. The contact carrier includes: a first end face which is fitted with the contact plate, and a peripheral face which is formed with a slit portion in such a manner a... | 02/03/2004 |
| 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 |
| 6649855 | Contact arrangement for vacuum interrupter and vacuum interrupter using the contact arrangement In a contact arrangement and a vacuum interrupter using the contact arrangement, the contact arrangement includes: a hollow cylindrical contact carrier on one end surface of which a contact plate is attached; a plurality of first slits formed on the conta... | 11/18/2003 |
| 6639169 | Contact for vacuum interrupter and vacuum interrupter using the contact A contact and a vacuum interrupter using the contact. The contact includes a hollow cylindrical contact carrier and a contact plate disposed on one of the axial end faces of the contact carrier. First slits and second slits extend from the one of the axia... | 10/28/2003 |
| 6630640 | Electrical switch An electrical switch for electrical tools having an electric motor operated by a DC voltage. The switch comprises a contact system including a stationary contact and a switching contact, an operating element which acts on the switching contact to initiate... | 10/07/2003 |
| 6600123 | Cutless rotary arc gap switch and dual triggering system A rotary arc gap (RAG) switch capable of handling large amounts of current flow is disclosed. The circular electrodes of the switch incorporate the use of a high-resistance material placed in a gap in the electrodes. The absence of an air gap in the elect... | 07/29/2003 |
| 6566621 | Metal-ceramic composite and vacuum switch unit using the same A metal-ceramic composite (a vacuum switch unit 50) having a metal member 13 having a tubular portion 13b, and a cylindrical ceramic member 55. The metal-ceramic composite (the vacuum switch unit 50) has a structure in which an end face of the tubular por... | 05/20/2003 |
| 6541726 | Vacuum cartridge in particular for an electrical protection apparatus such as a switch or a circuit breaker A vacuum cartridge, in particular for an electrical protection apparatus such as a switch or circuit breaker, comprising an enclosure of appreciably cylindrical shape closed by two end-plates, two contacts extending axially inside the enclosure, at least ... | 04/01/2003 |
| 6506992 | Vacuum interrupter for vacuum breaker A vacuum interrupter for a vacuum breaker, by which melting on contact surface caused by are concentration when a large current is broken and the arc can be rapidly extinguished by forming a strong magnetic field in vertical direction same as the arc when... | 01/14/2003 |
| 6479779 | Vacuum switching device A vacuum switching device comprising an evacuated envelope including an insulating cylinder, a stationary contact electrode and a movable contact electrode housed within the envelope. The electrodes are adapted to be engaged or disengaged to close or open... | 11/12/2002 |
| 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 |
| 6476338 | Vacuum switch A third electrode (8A) is soldered, via a support fitting (9) onto the inner surface of a support part (1a) which projects into the intermediate part of the inner surface of an insulation tube (1A). An arc generated between the fixed-side contact (5A) and... | 11/05/2002 |
| 6437275 | Vacuum circuit-breaker, vacuum bulb for use therein, and electrodes thereof The invention aims at providing a vacuum circuit-breaker, a vacuum valve used therein and electrodes for the vacuum valve, which can reduce the manufacturing cost while being of high performance and compact in size. The invention resides in a vacuum circu... | 08/20/2002 |
| 6426475 | Vacuum valve The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each br... | 07/30/2002 |
| 6376791 | Vacuum valve A method for improving flux density in a vacuum valve, includes producing, with a vacuum valve, an axial magnetic field parallel to an arc generated between a movable and a stationary electrodes facing each other, and adjusting a magnitude of an axial flu... | 04/23/2002 |
| 6346683 | Vacuum interrupter and vacuum switch thereof {W--Cux Sb-balance Cu} alloy is employed for contacts. As the anti-arcing constituent in the alloy W or WMo in a content of 65 to 85%, of grain diameter 0.4 to 9 μm is employed. As auxiliary constituent, Cux Sb is employed, the cont... | 02/12/2002 |
| 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 |
| 6320149 | Current contact system for a current switch A moving first electrical contact arrangement (K1) has a switching contact (P4) and a U-shaped arcing horn (R1) on the end face. A stationary second electrical contact arrangement (K2) has a switching contact (P1) and a U-shaped electrical conductor loop ... | 11/20/2001 |
| 6259050 | Burn-off contact arrangement A switching arrangement having a large burn-up reserve, contact fingers (2) are connected to a first electrical terminal via flexible bands (6) consisting of strips of, for example, copper which lie one above the other. The connecting portion (7) of the b... | 07/10/2001 |
| 6248969 | Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor Disclosed is a vacuum circuit breaker including a small-sized electrode structure capable of reducing deformation with age thereby enhancing the reliability and a vacuum bulb and a vacuum bulb electrode used for the breaker. In the vacuum circuit breaker,... | 06/19/2001 |
| 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 |
| 6140599 | Contact configuration for vacuum switches A contact configuration for vacuum switches includes two mutually opposite switch parts having a predetermined radius RK. Each switch part has slots which proceed from a center and which extend outward to form a spiral contact. The contours of ... | 10/31/2000 |
