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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7349189 | Electrical surge protection using in-package gas discharge system The present invention comprises using an electrode (107) arranged with a small gap or opening (108) placed in parallel with an electrically sensitive component (105) and housed with a gas inside an enclosure (100) to form a discharge gap.... | 03/25/2008 |
| 7187128 | Joined bodies, luminous containers and assemblies for high pressure discharge lamps A joined body is provided, including a first member having a first joining face and sapphire exposed at the first joining face and a second member having a second joining face and sapphire or polycrystalline alumina exposed at the second joining face. The first memb... | 03/06/2007 |
| 7126804 | Spark gap A spark gap for protecting an electrical circuit from voltage surges includes a first electrical circuit trace element having a first end face of defined thickness and length, and a second electrical circuit trace element having a second end face of defined thicknes... | 10/24/2006 |
| 7035073 | Central office surge protector with interacting varistors A central office surge protector having at least one gas tube and at least one varistor. The at least one varistor interacts with the at least one gas tube to lower the impulse breakdown voltage of the gas tube. The at least one gas tube may be a two or a three elem... | 04/25/2006 |
| 6999294 | Waveguide A waveguide which is particularly suitable for transmitting electrical signals between or to and/or from electronic circuits, for example between integrated circuits disposed on a printed circuit board, has an over-voltage protection region. The over-voltage region ... | 02/14/2006 |
| 6977468 | Integrated spark gap device A spark gap device that is formed in an integrated circuit (IC). The IC has a dielectric substrate upon which a high-voltage switch is disposed. The switch includes an anode element and a cathode element separated from each other by a spark gap. A trigger electrode ... | 12/20/2005 |
| 6965629 | Method and apparatus for initiating a pulsed arc discharge for nanopowder synthesis A nanopowder synthesis system having an autofuser device which obviates the need for external power switches, and which accommodates repeated discharges (of the order of 107) between ablating electrodes of precursor material at a high repetition rate (≧... | 11/15/2005 |
| 6559580 | Compact multistage spark gap switch A spark gap switch, including a first planar electrode including a discharge portion and a support portion. The spark gap also includes a second planar electrode parallel to and spaced apart from the first electrode and includes a discharge portion and a ... | 05/06/2003 |
| 6323599 | Vertical spark gap for microelectric circuits A vertical spark gap assembly for electronic circuits employing poly silicon. The assembly permits dissipation of higher voltages in spark discharge without shorting in the circuit. The spark gap assembly includes a first partially conductive layer and a ... | 11/27/2001 |
| 5909048 | Micro-machining minute hollow using native oxide membrane A native oxide film is formed on the surface of a silicon substrate. The native oxide film has at least island-shaped imperfect SiO2 regions not formed with a perfect SiO2 film. Before the native oxide film is formed, a mask layer ha... | 06/01/1999 |
| 5827438 | Electrically modulatable thermal radiant source with specific filament The invention is related to an electrically modulatable thermal radiant source with a multilayer structure. The radiant source includes a substrate, a first insulating layer formed onto the substrate, a radiant surface layer formed onto the first insulati... | 10/27/1998 |
| 5655210 | Corona source for producing corona discharge and fluid waste treatment with corona discharge A corona source suitable for use in vehicle ignition systems uses a conductive coil that receives an RF input at one end and has a corona discharge site at the other end, with a reference electrode capacitively coupled to the coil. The pitch and the lengt... | 08/05/1997 |
| 5631524 | Switching apparatus A switching apparatus obtains a large switching current by multiplying the number of electrons emitted by field emission from a cold cathode. The switching apparatus is driven by an optical wave and includes a recess portion of an insulation layer formed ... | 05/20/1997 |
| 5616865 | Acoustic wave generating apparatus Apparatus for non-destructively inspecting for faults in or beneath the surface of structures, such as debonds or delaminations in composite materials, or cracks, broken stringers, delaminations and the like in semi-monocoque structures, includes at least... | 04/01/1997 |
| 5473220 | Discharge tube A discharge tube according to the present invention is constructed such that it comprises a cylindrical container made of an insulation tube, a pair of discharge electrodes provided at opposite ends of the cylindrical container, a plurality of insulation ... | 12/05/1995 |
| 5466989 | Discharge tube A discharge tube according to the present invention is constructed such that it includes a cylindrical container made of an insulation tube, a pair of discharge electrodes provided at opposite ends of the container, a plurality of insulation coated lines ... | 11/14/1995 |
| 5436528 | Plasma source employing spiral RF coil and method for using same A plasma source for generating a plasma in a chamber in conjunction with a radio frequency generator is described. The plasma source comprises a coil spiral, at least one insulator and at least one capacitor. The coil spiral conducts the radio frequency w... | 07/25/1995 |
| 5272414 | Discharge element, method of producing the same and apparatus comprising the same A discharge element comprises a linear electrode and a sheet electrode both of which are provided opposite to each other with an insulator sheet therebetween, in which the linear electrode is formed by plasma spray coating a high-meting point semiconducto... | 12/21/1993 |
| 5235247 | Discharge tube with activation layer The discharge tube consists of an electrically insulating cylindrical body and a pair of electrodes disposed facing each other in the cylindrical body, and is sealed with an inert gas. An activation layer of a silicate compound of alkaline metal is formed... | 08/10/1993 |
| 5012383 | Lightning arrestor insulator and method of producing the same An excellent lightning arrestor insulator is provided having a discharge gap portion and an arrestor ZnO element device both built in a body of the insulator, comprising projected discharge electrodes arranged in the inside of the insulator body, the disc... | 04/30/1991 |
| 5007850 | Cathode ray tube socket having an improved high voltage discharge housing In a cathode ray tube socket which is provided with a socket body having a plurality of contacts disposed in a circle and a high voltage discharge gap housing provided on one side of the socket body, there are provided along the inside surface of both a c... | 04/16/1991 |
| 4975624 | Spark gap device particularly suited for a rapid restrike circuit for metal halide lamps A spark gap device is disclosed that is particularly suited for a rapid restrike or starting circuit which is employed in sport stadium lighting applications to start or restrike metal halide lamps that have been subjected to a momentary loss of power. Th... | 12/04/1990 |
| 4944004 | Interface circuit with transient event tolerance An interface circuit provides for coupling of communications signals between a conductor of a transmission path, and a key telephone system and provides for protection against electrical energies, as may be associated with transient electrical event occur... | 07/24/1990 |
| 4935657 | Marx generator and spark-gap assembly for such a generator The present invention provides a Marx generator comprising: a sealed case inside which prevails an atmosphere of a dielectric gas, a plurality of capacitor stages connected by a plurality of electrodes to two annular terminals connected to pairs of associated spark... | 06/19/1990 |
| 4931684 | Digitally scanned extended electron source in vacuum A device is provided for detecting defects in wire or cable insulation which is located in a vacuum without disconnecting the cable by synchronously detecting the current in a sense conductor with respect to the potential waveform existing or imposed on t... | 06/05/1990 |
| 4897577 | Electromechanically triggered spark gap switch A spark gap switch is disclosed. The spark gap switch comprises an anode and a cathode having facing surfaces separated by a predetermined gap, a trigger electrode located in the vicinity of such gap, and a piezoelectric generator connected between the tr... | 01/30/1990 |
| 4761794 | Thyratron having thermionic cathode material between anode and control grid A thyratron comprises an anode and control grids between which is located a double layer screen grid. Thermionic cathode material is inserted in an aperture in the part of the screen grid furthest from the anode, and in operation this is heated to the req... | 08/02/1988 |
| 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 |
| 4754199 | Self contained gas discharge display device A gas discharge apparatus includes a discharge chamber including a transparent dome portion and an electrode-including base portion, which together enclose an ionizable gas. A cup-shaped base member is affixed at its periphery to the edge of the base port... | 06/28/1988 |
| 4743804 | E-beam ionized channel guiding of an intense relativistic electron beam An IREB is guided through a curved path by ionizing a channel in a gas with electrons from a filament, and confining the electrons to the center of the path with a magnetic field extending along the path. The magnetic field is preferably generated by a so... | 05/10/1988 |
| 4727298 | Triggered plasma opening switch A triggerable opening switch for a very high voltage and current pulse includes a transmission line extending from a source to a load and having an intermediate switch section including a plasma for conducting electrons between transmission line conductor... | 02/23/1988 |
| 4712039 | Vacuum integrated circuit An integrated circuit including a plurality of active devices each including a thermionic cathode or a cold cathode, an anode, and a grid element, all coplanarly disposed on an insulating substrate in a vacuum. A plurality of electrostatic lens elements a... | 12/08/1987 |
| 4672259 | Power spark gap assembly for high current conduction with improved sparkover level control A power spark gap for protection of electrical equipment against overvoltages and having high current handling capacity is provided consisting of two carbon electrodes each of a hemispherical configuration disposed within a porcelain housing and with vent... | 06/09/1987 |
| 4661709 | Modular all-electrostatic electron-optical column and assembly of said columns into an array and method of manufacture The invention provides a modular-building block method and system of fabrication, installation, alignment and operation of a multi-beam assembly of miniaturized, all-electrostatic charged particle optical columns, such electron beam or ion beam optical co... | 04/28/1987 |
| 4649315 | Cathode-ray tube socket Contact pieces are accommodated respectively in contact housings in a main body portion. Each of the contact pieces has an intermediate portion extending between a contact portion and a terminal portion and force-fitted and held as a first discharge elect... | 03/10/1987 |
| 4631453 | Triggerable ceramic gas tube voltage breakdown device A triggerable ceramic gas tube voltage breakdown device, particularly adapted for use in an electrical circuit for controlling the light output of a photoflash lamp, includes means for reducing the attenuation of an electrical trigger pulse in the region ... | 12/23/1986 |
| 4628399 | Anti-overvoltage protector A pair of main electrodes are hermetically mounted, by fusion of a low melting point metal, onto both end openings of an insulative cylindrical member, respectively. Main electric discharge surfaces of the electrodes oppose each other in said cylindrical ... | 12/09/1986 |
| 4620126 | High energy discharge sparkgap A "Jacob's Ladder" type spark gap for use in a television receiver or the like includes an alumina substrate having a pair of divergent wires mounted thereon for extinguishing arcs thereacross. The bottom ends of the wires are formed into plug-in terminal... | 10/28/1986 |
| 4616155 | Overvoltage discharger for coaxial cables and method of making same A bi-polar discharger for a coaxial conducting cable is formed by threading rod elements into the ends of a central passage through an internal electrode so as to be electrically conductive therewith. A casing around the internal electrode comprises a cyl... | 10/07/1986 |
| 4604554 | Triggered spark gap discharger A triggered spark gap discharger having a small auxiliary gap in the trigger pulse path. The auxiliary gap provides ultraviolet radiation to liberate electrons at the trigger probe and allow prompt firing of the trigger gap and primary gap, particularly i... | 08/05/1986 |
