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 |
| 6017491 | Non-toxic corrosion inhibitive compositions and methods therefor Elastomeric compositions having incorporated therein certain specific compounds and/or compositions which are non-toxic but render the metals to which the compositions are applied resistant to corrosion, particularly, when in a salt environment.... | 01/25/2000 |
| 5585557 | Air data system for measuring fluid flow direction and velocity The invention is a system for determining the physical characteristics of an incident fluid flow stream over a surface of a vehicle relative to an axis thereof, the apparatus. In detail, the invention includes at least one first pressure sensor mounted on... | 12/17/1996 |
| 5552455 | Radar absorbing material and process for making same The invention is a radar absorbing material and a process for making same. In detail, the invention includes a binder material containing a mixture of two groups of spheres made of a magnetic material, The first group of spheres have an average diameter a... | 09/03/1996 |
| 5538203 | Ballonet system for a lighter-than-air vehicle The invention is a ballonet system for a lighter-than-air-vehicle, the vehicle having a lift producing gas bag and a longitudinal, vertical and lateral axis. In detail, the ballonet system includes a plurality of ballonets located within the gas bag posit... | 07/23/1996 |
| 5516061 | Shroud for a reversible thrust fan The invention is a shroud for a reversible thrust fan, the shroud having a inlet duct and an exhaust nozzle with the fan located there between. In general terms, the shroud includes a system for increasing the efficiency of the exhaust nozzle when acting ... | 05/14/1996 |
| 5500600 | Apparatus for measuring the electrical properties of honeycomb core The invention is an apparatus for measuring the attenuation of electromagnetic radiation between cells of honeycomb core. In detail, the apparatus includes at least two antennas in a spaced relationship. A positioning system is used for positioning the at... | 03/19/1996 |
| 5497962 | Mooring tower assembly for a lighter-than-air vehicle The invention is a mooring tower for a for a lighter-than-vehicle. In detail the invention includes a vertical tower having a vertical and lateral axis. A first support member is mounted on the top of said tower, which is rotatable in a horizontal plane a... | 03/12/1996 |
| 5495956 | Crane assembly The invention is a crane system for a building for the assembly of a gas bag for a lighter-than-air vehicle, the building having a floor and a roof thereover with a longitudinal, vertical and lateral axis. In detail, the crane assembly includes a pluralit... | 03/05/1996 |
| 5456426 | Attachment fitting for a wall of a flexible structure The invention is an attachment fitting for use on the flexible wall of a structure. In detail, the fitting includes a slot in the wall of the structure. A first flexible member is included having a center portion folded over its self forming a loop extend... | 10/10/1995 |
| 5449129 | Propulsion system for a lighter-than-air vehicle The invention is a propulsion system for a lighter-than-air vehicle, the vehicle having a longitudinal, lateral and vertical axis. In detail, the propulsion system includes a thrust producing assembly rotatably mounted on the vehicle, the assembly rotatab... | 09/12/1995 |
| 5440291 | Intruder detection system for passageways and the like The invention is a system for detecting the presence of an intruder in a passageway. In detail, the system includes at least one capacitance probe for mounting on the wall of the passageway, the probe including a sensing member in the form of a rod extend... | 08/08/1995 |
| 5431359 | Docking system for a lighter-than-air vehicle The invention is a combination docking and cargo handling system for a lighter-than-air vehicle. In detail, the invention includes a cargo carrying structure mounted to the bottom of the vehicle extending along at least a portion of the longitudinal axis ... | 07/11/1995 |
| 5419790 | Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys A non-toxic corrosion resistant conversion coating for aluminum is formed by a process which includes subjecting the aluminum to an acidic aqueous solution containing potassium permanganate and cerous chloride, alone or in combination with strontium chlor... | 05/30/1995 |
| 5399210 | Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys and the process for making the same A non-toxic corrosion resistant conversion coating for aluminum is formed by a process which includes subjecting the aluminum to an acidic aqueous solution containing potassium permanganate and cerous chloride, alone or in combination with strontium chlor... | 03/21/1995 |
| 5370817 | Low odor cleaning formulation comprising propylene glycol methyl ether and propylene glycol methyl ether acetate Disclosed are formulations for producing chemical solvent admixtures that can be employed to clean a surface for further work; and that can be applied to cloths for the cleaning operation yet alleviate problems with solvent evaporation into the atmosphere... | 12/06/1994 |
| 5368256 | Propulsion system for a lighter-than-air vehicle The invention is a propulsion system for a lighter-than-air vehicle. In detail the propulsion system includes a pylon having a longitudinal axis and first and second ends, the first end of the pylon rotatably mounted to the vehicle and the second end exte... | 11/29/1994 |
| 5356492 | Non-toxic corrosion resistant conversion process coating for aluminum and aluminum alloys A non-toxic corrosion resistant conversion coating process for aluminum and aluminum alloys which includes subjecting the aluminum to an aqueous solution containing hydrogen peroxide or cerous chloride, alone or in combination with strontium chloride. The... | 10/18/1994 |
| 5350611 | Integral end attachment fitting The invention is a hollow tubular member with an integral attachment end fitting. In detail, the product is made by a process comprising the steps of: providing a first hollow tubular member made of a composite material; providing a support member adapted... | 09/27/1994 |
| 5346162 | Cargo compartment for a lighter-than-air vehicle The invention is a cargo compartment for a lighter-than-air vehicle, the vehicle having a longitudinal, vertical and lateral axis. In detail, the cargo compartment includes a cargo carrying structure mounted to the bottom of the vehicle, the structure ext... | 09/13/1994 |
| 5339331 | Frequency hopping spread spectrum receiver A frequency hopping spread spectrum receiver that does not require an independent synchronization source to receive and track a frequency hopping transmitter signal. In a search mode, the receiver of this invention hops in a reverse direction and at a fas... | 08/16/1994 |
| 5333817 | Ballonet system for a lighter-than-air vehicle The invention is a ballonet system for a lighter-than-air-vehicle, the vehicle having a lift producing gasbag and a longitudinal, vertical and lateral axis. In detail, the ballonet system includes a plurality of ballonets located within the gasbag positio... | 08/02/1994 |
| 5330635 | Protective coating process for aluminum and aluminum alloys A protective coating process is described for simultaneously sealing and priming the anodic coating applied to a metal compound without the need for elevated temperatures during a subsequent curing step. The process comprises the steps of anodizing the co... | 07/19/1994 |
| 5320305 | Propulsion system for an aircraft providing V/STOL capability The invention is a propulsion system for powering an aircraft in both vertical and horizontal flight modes. In detail, the invention includes a pair of ducted lift fans mounted in the aircraft for providing thrust in the vertical flight mode. A pair of du... | 06/14/1994 |
| 5312069 | Propulsion system for an aircraft providing V/STOL capability The invention is a propulsion system for powering an aircraft in both vertical and horizontal flight modes. In detail, the invention includes first and second gas-driven ducted lift fans mounted in the aircraft for providing thrust in the vertical flight ... | 05/17/1994 |
| 5275356 | Propulsion system for a V/STOL aircraft The invention is a propulsion system for powering an aircraft in both vertical and horizontal flight modes. In detail, the invention comprises a gas-driven ducted lift fan mounted in the aircraft for providing thrust in the vertical flight mode. A turbofa... | 01/04/1994 |
| 5261243 | Supplemental cooling system for avionic equipment A supplemental cooling system is provided for selectively boosting the cooling capacity of a primary cooling system having a cooling duct for feeding cooling air to an electrical device to be cooled. The supplemental cooling system includes a source of cr... | 11/16/1993 |
| 5250950 | Vehicle A vehicle in free space or air, with external surfaces primarily fashioned from planar facets. The planar facets or panels are angularly positioned to reduce scattered energy in the direction of the receiver. In particular, radar signals which strike the ... | 10/05/1993 |
| 5248550 | Encapsulation of thermoplastic particles for production of composites Gel coating of thermoplastic particles, such as polyimide particles, with a polyketone or polyvinyl alcohol gel, and applying the gel coated particles to reinforcement, e.g. carbon, fibers to form a pre-preg. Such gel coated thermoplastic particles can be... | 09/28/1993 |
| 5244956 | Corrosion inhibiting coating composition A corrosion and crack growth inhibitor is disclosed, the inhibitor being relatively non-toxic as well as unreactive with curable elastomeric materials so as to form a coating composition for application to metal surfaces. The inhibitor comprises a curable... | 09/14/1993 |
| 5230259 | Method of making a surface with a sharp edge A method of making a structure having a plurality of serrations on a surface is provided wherein each serration is positioned at a specific location along the surface, has first and second sides with specific lengths, and has effectively zero radius inter... | 07/27/1993 |
| 5221371 | Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys and the process for making the same A non-toxic corrosion resistant conversion coating for aluminum is formed by a process which includes subjecting the aluminum to an acidic aqueous solution containing potassium permanganate and cerous chloride, alone or in combination with strontium chlor... | 06/22/1993 |
| 5217555 | Process for making hollow tubular structural members with integral end attachment fittings The invention is a process for forming a hollow tubular member with an integral attachment end fitting. In detail, the method comprising the steps of: providing a first hollow tubular member made of a composite material; providing a support member adapted... | 06/08/1993 |
| 5210783 | Penetrameter and method of use A penetrameter is provided for use in evaluating the resolution of an x-ray inspection system as well a method for calibrating the resolution of the x-ray inspection system. The penetrameter comprises a radiolucent substrate, and at least one filament at ... | 05/11/1993 |
| 5209428 | Propulsion system for a vertical and short takeoff and landing aircraft The invention is a propulsion system for a V/STOL type aircraft. In detail, the invention comprises a turbofan engine including a fan section, compressor section, combustion section, turbine section and nozzle section. The turbine section comprises a low-... | 05/11/1993 |
| 5181808 | Method and apparatus for automated drilling hole patterns in elongated workpieces A computerized apparatus and method for drilling holes in elongated workpieces. Predetermined locations for holes are input into a computer by visually aligning hole locations on a template with the drilling axis of the apparatus. The computer controls mo... | 01/26/1993 |
| 5166697 | Complementary bowtie dipole-slot antenna The antenna system includes a complementary "bowtie" dipole-slot antenna, the antenna having symmetrical halves about a plane of symmetry. The two halves of the antenna are slanted at the plane of symmetry such that the total included angle between the ha... | 11/24/1992 |
| 5163027 | Calibration block and method for an ultrasonic system An ultrasonic calibration block for standardizing an output of a pulse-echo ultrasonic inspection system is provided with an insonification surface for receiving ultrasonic pulses from the inspection system and a plurality of reflective interfaces stacked... | 11/10/1992 |
| 5099244 | Support pylon for radar cross-section model testing The invention is a pylon for supporting a model above a ground plane for radar cross-section testing using a radar providing a specific frequency range and power distribution above the ground plane. In detail, the pylon comprises a column made of a low di... | 03/24/1992 |
| 5094527 | Temperature compensated strain sensor for composite structures A temperature compensated strain sensor for measuring the strain at specific locations within a molded composite structure and the like, is disclosed. In detail, the invention comprises a hollow tubular member mounted within the structure which has first ... | 03/10/1992 |
| 5095076 | Preparation of highly soluble conductive polymer materials Preparation of conductive polymers, particularly polyanilines having good solubility in organic solvents and high electrical conductivity, by providing a mixture of aniline, dianiline and a flexible diamine such as 1,3-bis (3-aminophenoxy)benzene or triet... | 03/10/1992 |
