Celebrity Inventors
Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 4935661 | Pulsed plasma apparatus and process An apparatus for pulsed plasma treatment of a substrate surface includes means for removing spent gas from a region adjacent the substrate for each pulse. The apparatus may also include means for sweeping an intense plasma region across a substrate surfac... | 06/19/1990 |
| 4931687 | Spark gap switch having a two-phase fluid flow A two-phase fluid is injected into a volume upstream of the spark gap flow channel of a spark switch. The injected two-phase flow can be separated, causing the liquid component of the two-phase fluid to form a layer adjacent the wall of the flow channel a... | 06/05/1990 |
| 4918354 | Compact coiled coil incandescent filament with supports and pitch control This invention provides an improved compact fine wire incandescent lamp coiled-coil filament and method for making the same. The filament has a secondary mandrel ratio in the range of about 3.0 and a primary mandrel ratio which is less than or equal to th... | 04/17/1990 |
| 4906893 | X-ray image intensifier and method of manufacturing the same An output phosphor film used in an output screen of an image intensifier is made of ZnS or (Zn, Cd)S host material and at least one activator element selected from the group consisting of Cu, Ag, Au, Al, and Cl. The phosphor film is formed on a face plate... | 03/06/1990 |
| 4904895 | Electron emission device An electron emission device comprises an electron emission electrode with a pointed end and a counter electrode positioned opposite to the pointed end, both formed by fine working of a conductive layer laminated on an insulating substrate.... | 02/27/1990 |
| 4902927 | Streak tube A streak tube comprising a photocathode for converting an optical image into a photoelectron beam, accelerating means for accelerating the photoelectron beam, deflecting means for deflecting the accelerated photoelectron means, focusing means for focusing... | 02/20/1990 |
| 4900974 | Ion source An EHD ion source includes an extractor and a control electrode with extractor being disposed below a tip of an electrode, and functioning to apply an electric field to a substance to-be-ionized wetting a pointed end of the tip, so as to derive ions from ... | 02/13/1990 |
| 4900980 | Color display tube The astigmatism of the electron beams (6, 7, 8) generated by an electron gun system (5) are substantially reduced by constructing the lens electrode components (25, 26) between which a focusing lens is formed in an operating electron gun to be inverted re... | 02/13/1990 |
| 4899079 | Cathode ray tube In a color display tube including an envelope, a display screen, an electron gun system for producing and focusing a plurality of electron beams directed at the display screen, and coils for deflecting the beams, convergence of the beams independently of ... | 02/06/1990 |
| 4894582 | Method and apparatus for enhancing spark channel recovery by spark-generated unsteady flows A spark gap chamber to promote mixing and/or translation of hot residue gases into the surrounding gases in an unpurged spark gap chamber. The shock (and expansion) waves are reflected from walls and other structures within the spark gap chamber to cause ... | 01/16/1990 |
| 4893056 | Fluorescent display apparatus Fluorescent display apparatus for use in a large-screen display comprising a display portion having fluorescent display portions arranged in a matrix and coated with fluorescent material for emitting light upon being bombarded by thermoelectrons, cathodes... | 01/09/1990 |
| 4891554 | Arc discharge lamp having improved performance An improved high intensity arc discharge lamp is disclosed having curved projection means included when a bowed shape arc discharge is being closed to preclude molten vitreous material from deforming the internal cavity. In this manner, the arc tube inter... | 01/02/1990 |
| 4891544 | Front assembly for a tension mask color cathode ray tube having a pre-sized mask support structure A faceplate assembly for a color cathode ray tube is disclosed that includes a glass faceplate having on its inner surface a centrally disposed phosphor screen. A foil shadow mask is mounted in tension on a mask-support structure of tightly controlled uni... | 01/02/1990 |
| 4891555 | Metal vapor discharge lamps Flush and pump flush processes yielding light sources for incandescent and metal vapor discharge lamps are disclosed. The flush and pump flush processes also yield lamps that are particularly suitable for deposition of a reflective coating on its outer su... | 01/02/1990 |
| 4891550 | Phosphor blend for broad spectrum fluorescent lamp A full spectrum fluorescent lamp having a phosphor coating for producing visible light having a high color rendering index and balanced amounts of ultraviolet energy at the same correlated color temperature in which the coating is formed of two groups of ... | 01/02/1990 |
| 4890030 | Metal halide discharge lamp with arc tube temperature equalizing means A low wattage metal halide discharge lamp includes a arc tube having a temperature equalizing means telescoped thereover and an evacuated outer envelope enclosing the arc tube and convection current reducing means.... | 12/26/1989 |
| 4887003 | Screen printable luminous panel display device A gas discharge display apparatus in the form of an electroluminescent gas filled panel adapted for quickly and inexpensively making a durable and robust luminous sign using image patterns transferred to the panel by painting, silkscreening, stencilling, ... | 12/12/1989 |
| 4885503 | Color cathode-ray tube A particle shielding element of a shape memory metal is installed between an electroconductive layer on the inner peripheral surface of a neck glass tube of a cathode-ray tube and a shield cup of an electron gun therein to close a gap between the neck gla... | 12/05/1989 |
| 4884004 | Color cathode-ray tube having a heat dissipative, electron reflective coating on a color selection electrode A color cathode-ray tube comprises an evacuated envelope having an electron gun for producing at least one electron beam and, preferably three beams, a phosphor screen and a shadow mask adjacent to the screen. The mask has an improved heat dissipative, el... | 11/28/1989 |
| 4882521 | Deflection yoke for a color cathode ray tube A deflection yoke has magentic field correcting auxiliary yokes (5) disposed at the flare side end of the insulative bobbin (2) for holding a pair of horizontal deflection coils (3) and a pair of vertical deflection coils (4), each magnetic field correcti... | 11/21/1989 |
| 4881004 | Color cathode ray tube In a color cathode ray tube, a shadow mask and/or a panel is formed into the following shape. In the shadow mask and/or the panel, a radius of curvature at a central portion in a section taken along an X-Z parallel plane is larger than that at an effectiv... | 11/14/1989 |
| 4879492 | Fluorescent lamp having a multi-layer phosphor optimized for lumen output, color rendering and cost In a fluorescent lamp having a multi-layer phosphor, a halophosphate-containing layer having color coordinates within an oval centered on X=0.382 and Y=0.384. A rare earth activated phosphor layer has approximately the same color coordinates. The area den... | 11/07/1989 |
| 4876481 | Electroluminescent element There is disclosed an electroluminescent element which glows brightly and retains its high luminance over a long period of time. It is characterized in that the phosphor layer contains a cyanoethyl resin as the binder resin and the dielectric layer contai... | 10/24/1989 |
| 4876482 | Halogen cycle incandescent lamp structure To provide a mount for a halogen incandescent lamp, extending longitudinally within an elongated, for example essentially cylindrical bulb (2), the filament, preferably, is a coiled-coil filament and the mount includes a first lead-in conductor (8) which ... | 10/24/1989 |
| 4873467 | Ion source with particular grid assembly An ion source has the typical chamber wherein ions are produced and caused to be propelled outwardly through at least a pair of grids which have a mutually-aligned respective plurality of apertures. Thus, there are the usual cathode, anode, magnet assembl... | 10/10/1989 |
| 4870321 | Color cathode ray tube In an electron gun assembly for a cathode ray tube, the center and side electron beams emitted from cathodes are incident on a main electric lens. The center and side electron beams are focused, respectively. The side beams are over-converged and directed... | 09/26/1989 |
| 4870317 | High-pressure discharge lamp having a thermal insulating member In a high-pressure gas discharge lamp having a discharge vessel containing an ionizable gas filling, consisting of translucent material and surrounded by a translucent outer envelope, which is adjoined at an end thereof by a lamp cap, the space between th... | 09/26/1989 |
| 4870316 | Pulsed alkali metal vapor discharge lamp with ceramics outer envelope An alkali metal vapor discharge lamp is operable in a pulsed mode. The vapor discharge lamp includes an inner envelope made of first ceramics and an outer envelope made of second ceramics for enclosing the inner envelope under a vacuum atmosphere or an in... | 09/26/1989 |
| 4870322 | Electroluminescent panel having a layer of germanium nitride between an electroluminescent layer and a back electrode In an electroluminescent panel comprising a transparent electrode, a back electrode, and an electroluminescent layer between the transparent and the back electrodes, an intermediate layer is interposed between the electroluminescent layer and the back ele... | 09/26/1989 |
| 4868453 | Color display tube having a multi-part suspension means for a color selection electrode and method of manufacturing same Means for suspending a color selection electrode from the display window of a color display tube, the means consisting of a first element which is connected to the color selection electrode, and a two-part second element connected to the display window. T... | 09/19/1989 |
| 4868456 | Capped electric lamp having a bushing-sleeve arrangement permitting alignment of the lamp vessel with the lamp cap The capped electric lamp has a metal clamping member which surrounds a longitudinal part of the lamp vessel with a clamping fit and is secured to a metal bushing. The lamp cap has a metal sleeve secured therein which receives the metal bushing with telesc... | 09/19/1989 |
| 4868452 | Electric amp having a flexible conductor connecting a plurality of external pinch seal conductors to a rigid current-supply conductor The electric lamp has a lamp vessel (1) having a pinched seal (2) in which a metal foil (3) is accommodated as current lead-through conductor, which is connected to several external current conductors (7). The current conductors (7) are secured via a meta... | 09/19/1989 |
| 4866328 | Electric lamp with reduced internal photoelectron production An HID lamp having parts of its internal metal support covered with a layer of material having a photoelectric work function greater than 5.0 electron volts to reduce internal photoelectron production. The material may be granular zirconium oxide having a... | 09/12/1989 |
| 4866327 | Gas discharge lamp with microporous aerogel In a gas discharge lamp having a discharge vessel containing an ionizable gas filling and consisting of a translucent material, which is surrounded at a certain distance by a translucent outer bulb, the discharge vessel has a thermally insulating transluc... | 09/12/1989 |
| 4864181 | Electric incandescent lamp having truncated conical filament and a mirror coating The electric incandescent lamp according to the invention has an annular mirror coating on a hemispherical portion of its lamp envelope and a filament arranged zigzagwise between supporting points which are located on the surface of an imaginary cone. The... | 09/05/1989 |
| 4864189 | Control plate for display devices Control plates in flat display devices are located between the cathode and the screen and serve to control the electron flow. To permit easy contacting even if the conductors (1) of the control plates are very narrow, the conductors (1) alternately have b... | 09/05/1989 |
| 4859901 | Color CRT shadow mask with wrinkle-free corners A deep-drawn rectangular shadow mask having a blind edge between the aperture area and the upright skirt. In each corner of the blind edge, weakened portions are formed extending parallel to the diagonal of the mask, to compensate for the buckle load occu... | 08/22/1989 |
| 4855638 | Camera tube system and electron gun therefor A camera tube system having an electron gun of the diode type. The electron gun is provided with an anode consisting of several parts. These parts are provided with apertures, are electrically separated and are adapted to be connected to means to control ... | 08/08/1989 |
| 4853582 | Spark plug for use in internal combustion engine A spark plug for use in internal combustion engines having a pair of electrodes between which electric spark discharge is effected. The spark plug has a spark discharge portion bonded by, for example, resistance welding to at least one of the electrodes a... | 08/01/1989 |
| 4853594 | Electroluminescent lamp An electroluminescent lamp including a phosphor layer disposed between corresponding lamp electrodes that are adapted to apply an excitation potential to cause the phosphor layer to emit light, the front lamp electrode being light-transmsisive to radiatio... | 08/01/1989 |
