Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 5436524 | Orthogonally interdigitated shielded serpentine travelling wave cathode ray tube deflection structure A new deflection structure (12) which deflects a beam of charged particles, uch as an electron beam (15), includes a serpentine set (20) for transmitting a deflection field, and a shielding frame (25) for housing the serpentine set (20). The serpentine set... | 07/25/1995 |
| 5434882 | Injection-controlled laser resonator A new injection-controlled laser resonator incorporates self-filtering and self-imaging characteristics with an efficient injection scheme. A low-divergence laser signal is injected into the resonator, which enables the injection signal to be converted to... | 07/18/1995 |
| 5419820 | Process for producing enriched uranium having a 235 U content of at least 4 wt. % via combination of a gaseous diffusion process and an atomic vapor laser isotope separation process to eliminate uranium hexafluoride tails storage An uranium enrichment process capable of producing an enriched uranium, having a 235 U content greater than about 4 wt. %, is disclosed which will consume less energy and produce metallic uranium tails having a lower 235 U content th... | 05/30/1995 |
| 5418707 | High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polar... | 05/23/1995 |
| 5416381 | Self aligning electron beam gun having enhanced thermal and mechanical stability A compact, high power electron gun having enhanced thermal and mechanical stability which incorporates a mechanically coupled, self aligning structure for the anode and cathode. The enhanced stability, and reduced need for realignment of the cathode to th... | 05/16/1995 |
| 5411722 | Compact reaction cell for homogenizing and down-blanding highly enriched uranium metal The invention is a specialized reaction cell for converting uranium metal to uranium oxide. In a preferred form, the reaction cell comprises a reaction chamber with increasing diameter along its length (e.g. a cylindrical chamber having a diameter of abou... | 05/02/1995 |
| 5410397 | Method and apparatus for holographic wavefront diagnostics A wavefront diagnostic apparatus has an optic and a measuring system. The optic forms a holographic image in response to a beam of light striking a hologram formed on a surface of the optic. The measuring system detects the position of the array of hologr... | 04/25/1995 |
| 5404793 | Ceramic tile expansion engine housing An expandable ceramic tile housing for a high temperature engine is disclosed wherein each tile is independently supported in place in an interlocking matrix by retention mechanisms which mechanically couple the individual ceramic tiles to an outer metal ... | 04/11/1995 |
| 5404052 | Base drive circuit An improved base drive circuit (10) having a level shifter (24) for providing bistable input signals to a pair of non-linear delays (30, 32). The non-linear delays (30, 32) provide gate control to a corresponding pair of field effect transistors (100, 106... | 04/04/1995 |
| 5396513 | Metal vapor laser including hot electrodes and integral wick A metal vapor laser, specifically one utilizing copper vapor, is disclosed herein. This laser utilizes a plasma tube assembly including a thermally insulated plasma tube containing a specific metal, e.g., copper, and a buffer gas therein. The laser also u... | 03/07/1995 |
| 5380406 | Electrochemical method of producing eutectic uranium alloy and apparatus An apparatus and method for continuous production of liquid uranium alloys through the electrolytic reduction of uranium chlorides. The apparatus includes an electrochemical cell formed from an anode shaped to form an electrolyte reservoir, a cathode comp... | 01/10/1995 |
| 5376864 | Shielded serpentine traveling wave tube deflection structure A shielded serpentine slow wave deflection structure (10) having a serpene signal conductor (12) within a channel groove (46). The channel groove (46) is formed by a serpentine channel (20) in a trough plate (18) and a ground plane (14). The serpentine s... | 12/27/1994 |
| 5376246 | Efficient mass-selective three-photon ionization of zirconium atoms In an AVLIS process, 91 Zr is selectively removed from natural zirconium by a three-step photoionization wherein Zr atoms are irradiated by a laser beam having a wavelength λ1, selectively raising 91 Zr atoms to an odd-pa... | 12/27/1994 |
| 5368792 | Method for molding threads in graphite panels A graphite panel (10) with a hole (11) having a damaged thread (12) is repaired by drilling the hole (11) to remove all of the thread and make a new hole (13) of larger diameter. A bolt (14) with a lubricated thread (17) is placed in the new hole (13) and... | 11/29/1994 |
| 5365876 | Crystal face temperature determination means An optically transparent furnace (10) having a detection apparatus (29) with a pedestal (12) enclosed in an evacuated ampule (16) for growing a crystal (14) thereon. Temperature differential is provided by a source heater (20), a base heater (24) and a co... | 11/22/1994 |
| 5365379 | Laser correcting mirror An improved laser correction mirror (10) for correcting aberrations in a laser beam wavefront having a rectangular mirror body (12) with a plurality of legs (14, 16, 18, 20, 22, 24, 26, 28) arranged into opposing pairs (34, 36, 38, 40) along the long side... | 11/15/1994 |
| 5361056 | Correction coil cable A wire cable assembly (10, 310) adapted for the winding of electrical coils is taught. A primary intended use is for use in particle tube assemblies (532) for the superconducting super collider. The correction coil cables (10, 310) have wires (14, 314) co... | 11/01/1994 |
| 5359246 | Low backlash direct drive actuator A low backlash direct drive actuator is described which comprises a motor such as a stepper motor having at least 200 steps per revolution; a two part hub assembly comprising a drive hub coaxially attached to the shaft of the motor and having a plurality ... | 10/25/1994 |
| 5359252 | Lead magnesium niobate actuator for micropositioning An improved lead magnesium niobate actuator is disclosed comprising a cylindrical lead magnesium niobate crystal stack mounted in a cylindrical casing wherein a bias means, such as one or more belleville washers, is located between one end of the crystal ... | 10/25/1994 |
| 5357342 | Process and apparatus for measuring degree of polarization and angle of major axis of polarized beam of light Apparatus and process are disclosed for calibrating measurements of the phase of the polarization of a polarized beam and the angle of the polarized optical beam's major axis of polarization at a diagnostic point with measurements of the same parameters a... | 10/18/1994 |
| 5355387 | Interface module for transverse energy input to dye laser modules An interface module (10) for transverse energy input to dye laser modules is provided particularly for the purpose of delivering enhancing transverse energy beams (36) in the form of illumination bar (54) to the lasing zone (18) of a dye laser device, in ... | 10/11/1994 |
| 5353314 | Electric field divertor plasma pump An electric field plasma pump includes a toroidal ring bias electrode (56) positioned near the divertor strike point of a poloidal divertor of a tokamak (20), or similar plasma-confining apparatus. For optimum plasma pumping, the separatrix (40) of the po... | 10/04/1994 |
| 5353167 | Mirror mount A unique lens or mirror mount having adjustable constraints at two key locations to allow for "X" and "Y" tilts of the mirror only. The device uses two pair of flexures of a type such that the pivots of the mirror gimble are rigidly fixed in all planes al... | 10/04/1994 |
| 5347209 | Voltage control in pulsed system by predict-ahead control A method and apparatus for predict-ahead pulse-to-pulse voltage control in a pulsed power supply system is disclosed. A DC power supply network is coupled to a resonant charging network via a first switch. The resonant charging network is coupled at a nod... | 09/13/1994 |
| 5347247 | Electro-optic component mounting device A technique is provided for integrally mounting a device such as an electro-optic device (50) in a transmission line to avoid series resonant effects. A center conductor (52) of the transmission line has an aperture (58) formed therein for receiving the d... | 09/13/1994 |
| 5341392 | Longitudinal discharge laser electrodes The improved longitudinal discharge laser electrode with IR baffle includes an electrode made up of washers spaced along the laser axis in order to form inter-washer spaces for hollow cathode discharge to take place and for IR radiation to be trapped. Add... | 08/23/1994 |
| 5335548 | Non-linear optical crystal vibration sensing device A non-linear optical crystal vibration sensing device (10) including a photorefractive crystal (26) and a laser (12). The laser (12 ) produces a coherent light beam (14) which is split by a beam splitter (18) into a first laser beam (20) and a second lase... | 08/09/1994 |
| 5334239 | Passive gas separator and accumulator device A separation device employing a gas separation filter and swirler vanes for separating gas from a gasliquid mixture is provided. The cylindrical filter utilizes the principle that surface tension in the pores of the filter prevents gas bubbles from passin... | 08/02/1994 |
| 5335236 | Long pulse production from short pulses A method of producing a long output pulse (SA) from a short pump pulse (P), using an elongated amplified fiber (11) having a doped core (12) that provides an amplifying medium for light of one color when driven into an excited state by light of a shorter ... | 08/02/1994 |
| 5325095 | Stepped frequency ground penetrating radar A stepped frequency ground penetrating radar system is described comprising an RF signal generating section capable of producing stepped frequency signals in spaced and equal increments of time and frequency over a preselected bandwidth which serves as a ... | 06/28/1994 |
| 5319662 | Longitudinal discharge laser baffles The IR baffles placed between the window and the electrode of a longitudinal discharge laser improve laser performance by intercepting off-axis IR radiation from the laser and in doing so reduce window heating and subsequent optical distortion of the lase... | 06/07/1994 |
| 5312232 | Pump for molten metal or other fluid A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump combines elements of a bubble pump with a trap which isolates the... | 05/17/1994 |
| 5311766 | Method and apparatus for determining two-phase flow in rock fracture An improved method and apparatus as disclosed for measuring the permeability of multiple phases through a rock fracture. The improvement in the method comprises delivering the respective phases through manifolds to uniformly deliver and collect the respec... | 05/17/1994 |
| 5310366 | Easily disassembled electrical connector for high voltage, high frequency connections An easily accessible electrical connector capable of rapid assembly and disassembly wherein a wide metal conductor sheet may be evenly contacted over the entire width of the conductor sheet by opposing surfaces on the connector which provide an even clamp... | 05/10/1994 |
| 5309282 | High stability wavefront reference source A thermally and mechanically stable wavefront reference source which produces a collimated output laser beam. The output beam comprises substantially planar reference wavefronts which are useful for aligning and testing optical interferometers. The invent... | 05/03/1994 |
| 5309456 | Pulse stretcher Apparatus (20) for increasing the length of a laser pulse to reduce its peak power without substantial loss in the average power of the pulse. The apparatus (20) uses a White cell (10) having a plurality of optical delay paths (18a-18d) of successively in... | 05/03/1994 |
| 5307718 | Apparatus and process for removing a predetermined portion of reflective material from mirror An apparatus and process are disclosed for removal of a stripe of soft reflective material of uniform width from the surface of a mirror by using a blade having a large included angle to inhibit curling of the blade during the cutting operation which coul... | 05/03/1994 |
| 5307272 | Minefield reconnaissance and detector system A multi-sensor system (10) for detecting the presence of objects on the surface of the ground or buried just under the surface, such as anti-personnel or anti-tank mines or the like. A remote sensor platform (12) has a plurality of metal detector sensors ... | 04/26/1994 |
| 5305152 | Evacuated optical structure comprising optical bench mounted to sidewall of vacuum chamber in a manner which inhibits deflection and rotation of the optical bench An improved evacuated optical structure is disclosed comprising an optical bench mounted in a vacuum vessel in a manner which inhibits transmission of movement of the vacuum vessel to the optical bench, yet provides a compact and economical structure. The... | 04/19/1994 |
| 5305346 | Transverse-type laser assembly using induced electrical discharge excitation and method A transverse-type laser assembly is disclosed herein. This assembly defines a laser cavity containing a vapor or gaseous substance which lases when subjected to specific electrical discharge excitation between a pair of spaced-apart electrodes located wit... | 04/19/1994 |
